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Precision Switchmode

Pulse Width Modulation

Control Circuit

The TL594 is a fixed frequency, pulse width modulation control circuit designed primarily for Switchmode power supply control.

•Complete Pulse Width Modulation Control Circuitry

•On±Chip Oscillator with Master or Slave Operation

•On±Chip Error Amplifiers

•On±Chip 5.0 V Reference, 1.5% Accuracy

•Adjustable Deadtime Control

•Uncommitted Output Transistors Rated to 500 mA Source or Sink

•Output Control for Push±Pull or Single±Ended Operation

•Undervoltage Lockout

Order this document by TL594/D

TL594

PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

SEMICONDUCTOR

TECHNICAL DATA

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO±16)

N SUFFIX

PLASTIC PACKAGE

CASE 648

MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted.)

Rating	Symbol	Value	Unit

Power Supply Voltage	VCC	42	V
Collector Output Voltage	VC1,	42	V
	VC2
Collector Output Current	IC1, IC2	500	mA
(each transistor) (Note 1)

Amplifier Input Voltage Range	VIR	±0.3 to +42	V
Power Dissipation @ TA ≤ 45°C	PD	1000	mW
Thermal Resistance,	RθJA	80	°C/W
Junction±to±Ambient

Operating Junction Temperature	TJ	125	°C
Storage Temperature Range	Tstg	±55 to +125	°C
Operating Ambient Temperature Range	TA		°C
TL594ID, CN		0 to +70
TL594CD, IN		±25 to +85

Derating Ambient Temperature	TA	45	°C

NOTES: 1. Maximum thermal limits must be observed.

PIN CONNECTIONS

Noninv	1	+			+	16	Noninv
Input	1	+	1	2	+	16	Input
Inv		Error	1	2	Error		Inv
Inv		Amp			Amp		Inv
Input	2	±		VCC	±	15	Input
Input	2			VCC		15	Input
Compen/PWN	3				5.0 V	14	V
Comp Input		≈ 0.1 V			REF		ref
Deadtime		≈ 0.1 V					Output
Deadtime	4					13	Output
Control	4					13	Control
CT	5	Oscillator				12	VCC
		Oscillator
RT	6				Q2	11	C2
Ground	7					10	E2
C1	8		Q1			9	E1
C1	8					9	E1

(Top View)

ORDERING INFORMATION

	Operating
Device	Temperature Range	Package

TL594CD	TA = 0° to +70°C	SO±16

TL594CN		Plastic
TL594CN		Plastic

TL594IN	TA = ± 25° to +85°C	Plastic

Motorola, Inc. 1996

Rev 0

TL594

RECOMMENDED OPERATING CONDITIONS

Characteristics	Symbol	Min	Typ	Max	Unit

Power Supply Voltage	VCC	7.0	15	40	V
Collector Output Voltage	VC1, VC2	±	30	40	V
Collector Output Current (Each transistor)	IC1, IC2	±	±	200	mA
Amplified Input Voltage	Vin	0.3	±	VCC ± 2.0	V
Current Into Feedback Terminal	lfb	±	±	0.3	mA
Reference Output Current	lref	±	±	10	mA
Timing Resistor	RT	1.8	30	500	kΩ
Timing Capacitor	CT	0.0047	0.001	10	μF
Oscillator Frequency	fosc	1.0	40	200	kHz
PWM Input Voltage (Pins 3, 4, 13)	±	0.3	±	5.3	V

ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 μF, RT = 12 kΩ, unless otherwise noted.)

For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.

Characteristics	Symbol	Min		Typ	Max	Unit

REFERENCE SECTION

Reference Voltage	Vref					V
(IO = 1.0 mA, TA = 25°C)		4.925		5.0	5.075
(IO = 1.0 mA)		4.9		±	5.1
Line Regulation (VCC = 7.0 V to 40 V)	Regline	±		2.0	25	mV
Load Regulation (IO = 1.0 mA to 10 mA)	Regload	±		2.0	15	mV
Short Circuit Output Current (Vref = 0 V)	ISC	15		40	75	mA
OUTPUT SECTION

Collector Off±State Current (VCC = 40 V, VCE = 40 V)	IC(off)	±		2.0	100	μA
Emitter Off±State Current (VCC = 40 V, VC = 40 V, VE = 0 V)	IE(off)	±		±	±100	μA
Collector±Emitter Saturation Voltage (Note 2)						V
Common±Emitter (VE = 0 V, IC = 200 mA)	VSAT(C)	±		1.1	1.3
Emitter±Follower (VC = 15 V, IE = ±200 mA)	VSAT(E)	±		1.5	2.5
Output Control Pin Current						μA
Low State (VOC ≤ 0.4 V)	IOCL	±		0.1	±
High State (VOC = Vref)	IOCH	±		2.0	20
Output Voltage Rise Time	tr					ns
Common±Emitter (See Figure 13)		±		100	200
Emitter±Follower (See Figure 14)		±		100	200

Output Voltage Fall Time	tf					ns
Common±Emitter (See Figure 13)		±		40	100
Emitter±Follower (See Figure 14)		±		40	100

ERROR AMPLIFIER SECTION

Input Offset Voltage (VO (Pin 3) = 2.5 V)	VIO	±		2.0	10	mV
Input Offset Current (VO (Pin 3) = 2.5 V)	IIO	±		5.0	250	nA
Input Bias Current (VO (Pin 3) = 2.5 V)	IIB	±		±0.1	±1.0	μA
Input Common Mode Voltage Range (VCC = 40 V, TA = 25°C)	VICR		0 to VCC±2.0			V
Inverting Input Voltage Range	VIR(INV)		±0.3 to VCC±2.0			V
Open Loop Voltage Gain ( VO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)	AVOL	70		95	±	dB
Unity±Gain Crossover Frequency (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)	fC	±		700	±	kHz
Phase Margin at Unity±Gain (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ)	φm	±		65	±	deg.
Common Mode Rejection Ratio (VCC = 40 V)	CMRR	65		90	±	dB
Power Supply Rejection Ratio ( VCC = 33 V, VO = 2.5 V, RL = 2.0 kΩ)	PSRR	±		100	±	dB
Output Sink Current (VO (Pin 3) = 0.7 V)	IO±	0.3		0.7	±	mA
Output Source Current (VO (Pin 3) = 3.5 V)	IO+	±2.0		±4.0	±	mA

NOTE: 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.

2	MOTOROLA ANALOG IC DEVICE DATA

TL594

ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 μF, RT = 12 kΩ, unless otherwise noted.)

For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.

Characteristics

Symbol

Min

Typ

Max

Unit

PWM COMPARATOR SECTION (Test Circuit Figure 11)

Input Threshold Voltage (Zero Duty Cycle)

VTH

3.6

4.5

Input Sink Current (VPin 3 = 0.7 V)

II±

0.3

0.7

DEADTIME CONTROL SECTION (Test Circuit Figure 11)

Input Bias Current (Pin 4) (VPin 4 = 0 V to 5.25 V)

IIB (DT)

±2.0

±10

μA

Maximum Duty Cycle, Each Output, Push±Pull Mode

DCmax

(VPin 4 = 0 V, CT = 0.01 μF, RT = 12 kΩ)

(VPin 4 = 0 V, CT = 0.001 μF, RT = 30 kΩ)

Input Threshold Voltage (Pin 4)

VTH

2.8

3.3

(Zero Duty Cycle)

(Maximum Duty Cycle)

OSCILLATOR SECTION

Frequency

fosc

kHz

(CT = 0.001 μF, RT = 30 kΩ)

(CT = 0.01 μF, RT = 12 kΩ, TA = 25°C)

9.2

10.8

(CT = 0.01 μF, RT = 12 kΩ, TA = Tlow to Thigh)

9.0

Standard Deviation of Frequency* (CT = 0.001 μF, RT = 30 kΩ)

σfosc

1.5

Frequency Change with Voltage (VCC = 7.0 V to 40 V, TA = 25°C)

fosc (

0.2

1.0

Frequency Change with Temperature

fosc (

4.0

( TA = Tlow to Thigh, CT = 0.01 μF, RT = 12 kΩ)

UNDERVOLTAGE LOCKOUT SECTION

Turn±On Threshold (VCC Increasing, Iref = 1.0 mA)

Vth

TA = 25°C

4.0

5.2

6.0

TA = Tlow to Thigh

3.5

6.5

Hysteresis

TL594C,I

100

150

300

TL594M

150

300

TOTAL DEVICE

Standby Supply Current (Pin 6 at Vref, All other inputs and outputs open)

ICC

8.0

(VCC = 15 V)

(VCC = 40 V)

8.0

Average Supply Current (VPin 4 = 2.0 V, CT = 0.01 μF, RT = 12 kΩ,

VCC = 15 V, See Figure 11)

* Standard deviation is a measure of the statistical distribution about the mean as derived from the formula, σ

Σ (Xn ± X)2

n = 1

N ± 1

MOTOROLA ANALOG IC DEVICE DATA	3

						TL594
				Figure 1. Representative Block Diagram
									Output Control		VCC
									13
	6										8
	6
			Oscillator				D	Q		Q1	9
RT	5						Flip±				9
RT	5						Flip±
	CT			Deadtime			Flop
				Comparator			Ck	Q		Q2	11
			≈ 0.12V	±			Ck	Q		Q2	11
			≈ 0.12V	+
	4			+							10
											10
			≈ 0.7V
	Deadtime		≈ 0.7V
	Control			±							12
								±			12
				+				±			VCC
				+				+	4.9V
			0.7mA	PWM			UV	+	4.9V
			0.7mA	Comparator			UV
							Lockout	±		Reference
		+		+				±		Regulator
								+		Regulator

		1		2
		1		2
		±		±				3.5V
	1	2		3	15	16			14	7
	Error Amp		Feedback PWM		Error Amp				Ref.	Gnd
	Error Amp		Feedback PWM		Error Amp				Ref.
		1	Comparator Input			2			Output

This device contains 46 active transistors.

Figure 2. Timing Diagram

Capacitor CT

Feedback/PWM Comp.

Deadtime Control

Flip±Flop

Clock Input

Flip±Flop

Output Q1

Emitter

Output Q2

Emitter

Output

Control

4	MOTOROLA ANALOG IC DEVICE DATA

100 k

500 k

TL594

APPLICATIONS INFORMATION

Description

The TL594 is a fixed±frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply. (See Figure 1.) An internal±linear sawtooth oscillator is frequency± programmable by two external components, RT and CT. The approximate oscillator frequency is determined by:

	fosc ≈	1.1
	fosc ≈	RT •CT
		RT •CT

For more information refer to Figure 3.

Output pulse width modulation is accomplished by comparison of the positive sawtooth waveform across capacitor CT to either of two control signals. The NOR gates, which drive output transistors Q1 and Q2, are enabled only when the flip±flop clock±input line is in its low state. This happens only during that portion of time when the sawtooth voltage is greater than the control signals. Therefore, an increase in control±signal amplitude causes a corresponding linear decrease of output pulse width. (Refer to the Timing Diagram shown in Figure 2.)

The control signals are external inputs that can be fed into the deadtime control, the error amplifier inputs, or the feedback input. The deadtime control comparator has an effective 120 mV input offset which limits the minimum output deadtime to approximately the first 4% of the sawtooth±cycle time. This would result in a maximum duty cycle on a given output of 96% with the output control grounded, and 48% with it connected to the reference line. Additional deadtime may be imposed on the output by setting the deadtime±control input to a fixed voltage, ranging between 0 V to 3.3 V.

The pulse width modulator comparator provides a means for the error amplifiers to adjust the output pulse width from the maximum percent on±time, established by the deadtime control input, down to zero, as the voltage at the feedback pin varies from 0.5 V to 3.5 V. Both error amplifiers have a

Functional Table

Input/Output	Output Function		fout
Controls	Output Function	fosc =
Controls		fosc =
Grounded	Single±ended PWM @ Q1 and Q2	1.0

@ Vref	Push±pull Operation	0.5

common±mode input range from ±0.3 V to (VCC ± 2 V), and may be used to sense power±supply output voltage and current. The error±amplifier outputs are active high and are ORed together at the noninverting input of the pulse±width modulator comparator. With this configuration, the amplifier that demands minimum output on time, dominates control of the loop.

When capacitor CT is discharged, a positive pulse is generated on the output of the deadtime comparator, which clocks the pulse±steering flip±flop and inhibits the output transistors, Q1 and Q2. With the output±control connected to the reference line, the pulse±steering flip±flop directs the modulated pulses to each of the two output transistors alternately for push±pull operation. The output frequency is equal to half that of the oscillator. Output drive can also be taken from Q1 or Q2, when single±ended operation with a maximum on±time of less than 50% is required. This is desirable when the output transformer has a ringback winding with a catch diode used for snubbing. When higher output±drive currents are required for single±ended operation, Q1 and Q2 may be connected in parallel, and the output±mode pin must be tied to ground to disable the flip±flop. The output frequency will now be equal to that of the oscillator.

The TL594 has an internal 5.0 V reference capable of sourcing up to 10 mA of load current for external bias circuits. The reference has an internal accuracy of ±1.5% with a typical thermal drift of less than 50 mV over an operating temperature range of 0° to 70°C.

f OSC, OSCILLATOR FREQUENCY (Hz)

Figure 3. Oscillator Frequency versus	Figure 4. Open Loop Voltage Gain and
Timing Resistance	Phase versus Frequency

									(dB)	120
							VCC = 15 V		(dB)	110								EXCESS PHASE (DEGREES)
									OPEN LOOP VOLTAGE GAIN	110				V	CC	= 15 V
				CT = 0.001 μF						100				V	CC	= 15 V
				CT = 0.001 μF						100					VO = 3.0 V		0
										90				RL = 2.0 kΩ			0
										80				RL = 2.0 kΩ			20
										80			AVOL				20
										70			AVOL				40
										70							40
10 k				0.01 μF						60							60
10 k										50						φ	80
										50							80
										40							100
										40							100
				0.1 μF						30							120
									,	20							140	φ ,
1.0 k									VOL	20							140
1.0 k									VOL	10							160
									A	10							160
500	2.0 k	5.0 k	10 k	20 k	50 k	100 k	200 k	500 k	1.0 M	0							180
1.0 k	2.0 k	5.0 k	10 k	20 k	50 k	100 k	200 k	500 k	1.0 M	1.0	10	100	1.0 k	10 k	100 k		1.0 M
			RT, TIMING RESISTANCE (Ω)									f, FREQUENCY (Hz)

MOTOROLA ANALOG IC DEVICE DATA	5

TL594

Figure 5. Percent Deadtime versus

Oscillator Frequency

OUTPUT)	20
	18
	16
(EACH	16		CT = 0.001		μF
	14		CT = 0.001		μF
	14
DEADTIME	12
	10
	8.0
PERCENT	8.0
	6.0		0.01	μF
	4.0		0.01	μF
	4.0

% DT,	2.0
% DT,	0
	0
	500 k	1.0 k	10 k	100 k	500 k
			fosc, OSCILLATOR FREQUENCY (Hz)

Figure 6. Percent Duty Cycle versus

Deadtime Control Voltage

OUTPUT)	50
OUTPUT)		1
(EACH	40	1	VCC = 15 V
	40		VCC = 15 V
		2	VOC = Vref
			1.	CT = 0.01 μF
CYCLE			1.	CT = 0.01 μF
	30		1.	RT = 10 kΩ
			2.	CT = 0.001 μF
DUTY	20		1.	RT = 30 kΩ
	20

DC, PERCENT	10
DC, PERCENT	0
%	0
%	0	1.0	2.0	3.0	3.5
	0	1.0	2.0	3.0	3.5

VDT, DEADTIME CONTROL VOLTAGE (IV)

Figure 7. Emitter±Follower Configuration

Output Saturation Voltage versus

Emitter Current

	1.9
(V)	1.8
VOLTAGE	1.8
	1.7
	1.6
, SATURATION	1.6
	1.5
	1.4
	1.3
CE(sat)	1.3
CE(sat)	1.2
V
	1.1
	0	100	200	300	400

IE, EMITTER CURRENT (mA)

Figure 9. Standby Supply Current

versus Supply Voltage

	10
(mA)	9.8
	8.0

CURRENT	7.0
	6.0
	5.0
, SUPPLY	5.0
	4.0
	3.0
CC	2.0
I	2.0
	1.0
	0
	0	5.0	10	15	20	25	30	35	40

VCC, SUPPLY VOLTAGE (V)

Figure 8. Common±Emitter Configuration

Output Saturation Voltage versus

Collector Current

	2.0
(V)	1.8
VOLTAGE	1.6
VOLTAGE	1.4
, SATURATION	1.2
	1.0
	0.8
CE(sat)	0.8
	0.6

V	0.4
	0.4
	0	100	200	300	400

IC, COLLECTOR CURRENT (mA)

Figure 10. Undervoltage Lockout Thresholds

(V)			versus Reference Load Current
(V)
THRESHOLD	6.0
	5.5				Turn On
	5.5
LOCKOUT	5.0				Turn Off
LOCKOUT	5.0
, UNDERVOLTAGE	4.5
, UNDERVOLTAGE	4.0
TH	4.0
TH	0	5.0	10	15	20	25	30	35	40
V	0	5.0	10	15	20	25	30	35	40
			IL, REFERENCE LOAD CURERNT (mA)

6	MOTOROLA ANALOG IC DEVICE DATA

TL594

Figure 11. Error±Amplifier Characteristics

Figure 12. Deadtime and Feedback Control Circuit

		Error Amplifier		VCC = 15V		150	150
	+	Under Test			VCC	2W	2W
Vin					VCC
Vin	±		Test	Deadtime		C1	Output 1
	±			Deadtime		C1	Output 1
						E1
		Feedback	Inputs	Feedback		E1
			Inputs

		Terminal		RT		C2	Output 2
		(Pin 3)		CT		E2
				CT
	+			(+)
Vref	±			(±)	Error
				(+)	Error
		Other Error		(+)
		Other Error		(±)
		Amplifier		(±)		Ref
		Amplifier		Output

						Out
			50k	Control		Out
				Control	Gnd
					Gnd

Figure 13. Common±Emitter Configuration			Figure 14. Emitter±Follower Configuration
Test Circuit and Waveform			Test Circuit and Waveform
		15V
		RL		15V
		RL		C
		68		C
		VC	Each
		C	Output	Q
Each		CL	Transistor		VEE
Output	Q	CL		E	VEE
Transistor		15pF		E
Transistor				RL	CL
		E		RL	CL
		E		68	15pF
90%		90%	90%		90%
90%		90%			VEE
VCC					VEE
VCC			10%		10%
10%		10%	10%		10%
10%		10%	Gnd
	tr	tf	tr		tf
	tr	tf

MOTOROLA ANALOG IC DEVICE DATA	7

				TL594
	Figure 15. Error±Amplifier Sensing Techniques
VO	To Output						Vref
VO	To Output
	Voltage of						1
	System					+	1
R1						+	R2
R1				3	Error		R2
					Error
					Amp
1					Amp	±
1	+					±	2
	+
	Error
	Error		3
	Amp		3		Negative Output Voltage		R1
Vref	Amp				Negative Output Voltage		R1
Vref	±
2					VO = Vref	R1
R2	Positive Output Voltage				VO = Vref	R2	VO
	Positive Output Voltage					R2	VO

	VO = Vref	1 +	R1				To Output
	VO = Vref	1 +	R2				Voltage of
			R2				System
							System
Figure 16. Deadtime Control Circuit					Figure 17. Soft±Start Circuit
Output
Control
Output	Vref	4	R1			Vref	CS
Output		4		Output		Vref	4
Q	DT			Output	Q
Q	DT
RT	CT						DT
RT	CT		R2				RS
6	5		R2
6	5
30k	0.001

Max. % on Time, each output ≈ 45 ±

1 + R1R2

Figure 18. Output Connections for Single±Ended and Push±Pull Configurations

		C1		C1
	Q1	QC	2.4 V ≤ VOC ≤ Vref	1	1.0 mA to 250 mA
	Q1	1	Q1	1	1.0 mA to 250 mA
		E		E
Output		1.0 mA to	Output
Control		1.0 mA to	Control
Control		500 mA	Control
	Single±Ended	500 mA	Push±Pull
	Single±Ended	C2	Push±Pull	C2
		C2		C2
0 ≤ VOC ≤ 0.4 V	Q2	E2	Q2	E2	1.0 mA to 250 mA
0 ≤ VOC ≤ 0.4 V	Q2	E2	Q2	E2
		QE

8	MOTOROLA ANALOG IC DEVICE DATA

	TL594
Figure 19. Slaving Two or More Control Circuits	Figure 20. Operation with Vin > 40 V Using
Vref	External Zener
Vref

	R		VCC
	S
6	Vin > 40V	1N975A	12
	RT	1N975A
5	Master	VZ = 39V	5.0V
RT	CT		Ref
CT		270
		270	Gnd
			Gnd

Vref	7
6
RT	Slave
5	(Additional
CT	Circuits)

Figure 21. Pulse Width Modulated Push±Pull Converter

+Vin = 8.0V to 20V
											12			47					+VO = 28V
		1									VCC			47		1N4934			IO = 0.2A
		1	+								VCC					T1
		2	±										8	Tip				22
	1.0M		±										C1	32		L1		k
	1.0M													32		L1	+
	33k	3	Comp					TL594									+	50
		3	Comp					TL594							+			50
0.01	0.01	15											11		+			35V
0.01	0.01		±											Tip	50
			±											Tip	50
													C2	32	25V			4.7k	+	50
		16	+	OC	V	REF	DT	C	R		Gnd	E1	E2	47				1.0		35V
						REF		T	T					47		1N4934		1.0
			13		14		4	5	6		7	9	10			1N4934
			13		14	+	4	5	6		7	9	10
						+											240
																	240
			4.7k			10				15k
			4.7k			10
						10k		0.001

All capacitors in μF

Test		Conditions	Results
				L1 ± 3.5 mH @ 0.3 A
Line Regulation	Vin = 10 V to 40 V		14 mV 0.28%	L1 ± 3.5 mH @ 0.3 A
Line Regulation	Vin = 10 V to 40 V		14 mV 0.28%	T1 ± Primary: 20T C.T. #28 AWG
Load Regulation	Vin = 28	V, IO = 1.0 mA to 1.0 A	3.0 mV 0.06%	Secondary: 12OT C.T. #36 AWG
				Core: Ferroxcube 1408P±L00±3CB
Output Ripple	Vin = 28	V, IO = 1.0 A	65 mVpp P.A.R.D.	Core: Ferroxcube 1408P±L00±3CB
Output Ripple	Vin = 28	V, IO = 1.0 A	65 mVpp P.A.R.D.
Short Circuit Current	Vin = 28	V, RL = 0.1 Ω	1.6 A
Efficiency	Vin = 28	V, IO = 1.0 A	71%

MOTOROLA ANALOG IC DEVICE DATA	9

								TL594
			Figure 22. Pulse Width Modulated Step±Down Converter
+Vin = 10V to 40V											1.0mH @ 2.0A
+Vin = 10V to 40V					Tip 32A								+VO = 5.0V
													IO = 1.0A
				47
						150				47k
										47k
		12			8	11			0.1
					8	11
		VCC				C1	C2	Comp	3	1.0M
		VCC				C1	C2		3

								±	2
								±
	+							+	1	5.1k	5.1k
50									1

			TL594						14
50V			TL594					Vref	14				+
								Vref	15			500	+
								±			MR850	500
								±		5.1k	MR850	10V
								+	16	5.1k
	CT	RT	D.T.	O.C. Gnd		E1	E2	+	16
	CT	RT	D.T.	O.C. Gnd		E1	E2						+
	5	6	4	13	7	9	10						+
	5	6	4	13	7	9	10						50
										150			10V
										150
	0.001	47k
											0.1

Test	Conditions	Results

Line Regulation	Vin = 8.0 V to 40 V	3.0 mV	0.01%
Load Regulation	Vin = 12.6 V, IO = 0.2 mA to 200 mA	5.0 mV	0.02%
Output Ripple	Vin = 12.6 V, IO = 200 mA	40 mVpp	P.A.R.D.
Short Circuit Current	Vin = 12.6 V, RL = 0.1 Ω	250 mA
Efficiency	Vin = 12.6 V, IO = 200 mA	72%

10	MOTOROLA ANALOG IC DEVICE DATA

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