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TPS61020, TPS61024, TPS61025

TPS61026, TPS61027, TPS61028

TPS61029

www.ti.com

SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006

PARAMETER MEASUREMENT INFORMATION

		L1
		6.8 μH	SW	VOUT
		6.8 μH			C2			C3
			VBAT		C2			C3
			VBAT	R3	2.2	μ	F	47	μ
				R3	2.2		F	47	F
Power	C1	R1	EN	FB
Supply	10 μF		LBI	R4					R5
			LBI	R4					R5
		R2
			PS	LBO
				LBO
List of Components:			GND	PGND
List of Components:				TPS6102x
U1 = TPS6102xDRC				TPS6102x
U1 = TPS6102xDRC
L1 = EPCOS B82462−G4682
C1, C2 = X7R/X5R Ceramic
C3 = Low ESR Tantalum

VCC

Boost Output

Control Output

TYPICAL CHARACTERISTICS

Table of Graphs

		FIGURE
Maximum output current	vs Input voltage	1
	vs Output current (TPS61020)	2
	vs Output current (TPS61025)	3
Efficiency	vs Output current (TPS61027)	4
	vs Input voltage (TPS61025)	5
	vs Input voltage (TPS61027)	6
Output voltage	vs Output current (TPS61025)	7
Output voltage	vs Output current (TPS61027)	8
	vs Output current (TPS61027)	8
No load supply current into VBAT	vs Input voltage	9
No load supply current into VOUT	vs Input voltage	10
	Output voltage in continuous mode (TPS61025)	11
	Output voltage in continuous mode (TPS61027)	12
	Output voltage in power save mode (TPS61025)	13
	Output voltage in power save mode (TPS61027)	14
Waveforms	Load transient response (TPS61025)	15
Waveforms	Load transient response (TPS61027)	16
	Load transient response (TPS61027)	16
	Line transient response (TPS61025)	17
	Line transient response (TPS61027)	18
	Start-up after enable (TPS61025)	19
	Start-up after enable (TPS61027)	20

6	Submit Documentation Feedback	Copyright © 2003–2006, Texas Instruments Incorporated
	Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

	TPS61020, TPS61024, TPS61025
	TPS61026, TPS61027, TPS61028
www.ti.com	TPS61029
	SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006
MAXIMUM OUTPUT CURRENT	TPS61020
MAXIMUM OUTPUT CURRENT	EFFICIENCY
vs	vs
INPUT VOLTAGE	OUTPUT CURRENT

	1400									100
										90	VBAT = 0.9 V		VO = 1.8 V
											VBAT = 0.9 V
	1200
	1200
- mA		VO = 3.3 V				V	O	= 5 V		80
							O
	1000									70
Current	1000
											VBAT = 1.8 V
											VBAT = 1.8 V
	800								- %	60
Maximum Output									Efficiency	50
	600									40
										40
	400			VO = 1.8 V						30
										20
	200									20
	200
										10
	0									0
	0.9	1.7	2.5	3.3	4.1	4.9		5.7	6.5	0
	0.9	1.7	2.5	3.3	4.1	4.9		5.7	6.5	1	10	100	1000
			VI - Input Voltage - V							1	10	100	1000
			VI - Input Voltage - V								IO - Output Current - mA
				Figure 1.							Figure 2.

TPS61025	TPS61027
EFFICIENCY	EFFICIENCY
vs	vs
OUTPUT CURRENT	OUTPUT CURRENT

	100				100
	90				90
	80	VBAT = 2.4 V			80
		VBAT = 2.4 V				VBAT = 1.2 V
	70		VBAT = 1.8 V		70	VBAT = 1.2 V	VBAT = 2.4 V
	70		VBAT = 1.8 V		70		VBAT = 2.4 V
%	60			%	60	VBAT = 1.8 V		VBAT = 3.6 V
-				-
Efficiency	50		VBAT = 0.9 V	Efficiency	50
	50				50

	40				40
	30				30
	20				20
	10			VO = 3.3 V	10			VO = 5 V
	0	10	100	1000	0	10		100	1000
	1	10	100	1000	1	10		100	1000
		IO - Output Current - mA				IO - Output Current - mA
			Figure 3.				Figure 4.

Submit Documentation Feedback

Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

TPS61020, TPS61024, TPS61025

TPS61026, TPS61027, TPS61028

TPS61029	www.ti.com
SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006
TPS61025	TPS61027
EFFICIENCY	EFFICIENCY
vs	vs
INPUT VOLTAGE	INPUT VOLTAGE

	100
	95	IO = 100 mA					VO = 3.3 V
	95	IO = 100 mA
	90
	85
%	80		IO = 10 mA
-
Efficiency	75
	70	IO = 250 mA
	70

	65
	60
	55
	50
	0.9	1.4	1.9	2.4	2.9	3.4	3.9	4.4	4.9
			VI - Input Voltage - V

	100
	95	IO = 100 mA
	90
	85
%	80				IO = 10 mA
%	80
-
Efficiency	75	IO = 250 mA
	70

	65
	60
	55								VO = 5 V
									VO = 5 V
	50
	0.9	1.4	1.9	2.4	2.9	3.4	3.9	4.4	4.9	5.4	5.9	6.4
				VI - Input Voltage - V

Figure 5.	Figure 6.
TPS61025	TPS61027
OUTPUT VOLTAGE	OUTPUT VOLTAGE
vs	vs
OUTPUT CURRENT	OUTPUT CURRENT

	3.35				5.10
		VO = 3.3 V
					5.05
- V	3.30			- V	5
Voltage	3.30			Voltage	5
		VBAT = 2.4 V
					4.95
- Output				- Output	4.95
- Output	3.25			- Output	4.90
O	3.25			O	4.90
O				O
V				V
					4.85
	3.20				4.80
	1	10	100	1000
		IO - Output Current - mA

	VO = 5 V
		VBAT = 3.6 V
1	10	100	1000
	IO - Output Current - mA

Figure 7.

Figure 8.

Submit Documentation Feedback

Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

TPS61020, TPS61024, TPS61025 TPS61026, TPS61027, TPS61028

TPS61029

www.ti.com

SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006

NO LOAD SUPPLY CURRENT INTO VBAT vs

INPUT VOLTAGE

	1.6
A						TA = 85°C
A	1.4
-
VBAT	1.2
VBAT
Into	1
Current	0.8								TA = -40°C
Current						TA = 25°C			TA = -40°C
Supply	0.6					TA = 25°C
	0.6

No Load	0.4
No Load	0.2
	0.2
	0
	0.9	1.5	2	2.5	3	3.5	4	4.5	5	5.5	6	6.5
				VI - Input Voltage - V

Figure 9.

TPS61025

OUTPUT VOLTAGE IN CONTINUOUS MODE

	VI = 1.2 V,
VoltageOutput	RL = 33 Ω,
VoltageOutput	mV/div20
	VO = 3.3 V
Inductor Current	200 mA/div

t - Time - 1 μs/div

Figure 11.

NO LOAD SUPPLY CURRENT INTO VOUT vs

INPUT VOLTAGE

	34.8								TA = 85°C
- A									TA = 85°C
- A	29.8
VOUT	24.8		TA = -40°C
Into	24.8
									TA = 25°C
									TA = 25°C
Current	19.8
Current
Supply	14.8
Supply	9.8
No Load	9.8
No Load	4.8
	-0.2
	0.9	1.5	2	2.5	3	3.5	4	4.5	5	5.5	6	6.5
				VI - Input Voltage - V

Figure 10.

TPS61027

OUTPUT VOLTAGE IN CONTINUOUS MODE

Output Voltage	20 mV/div
Inductor Current	200 mA/div	VI = 3.6 V,
		RL = 25 Ω,
		VO = 5 V

t - Time - 1 μs/div

Figure 12.

Submit Documentation Feedback

Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

TPS61020, TPS61024, TPS61025 TPS61026, TPS61027, TPS61028 TPS61029

SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006

		TPS61025
		OUTPUT VOLTAGE IN POWER SAVE MODE
		VI = 1.2 V,
VoltageOutput	ACmV/div,20	RL = 330 Ω,
VoltageOutput	ACmV/div,20	VO = 3.3 V
		VO = 3.3 V
Inductor Current	100 mA/div, DC
		t - Time - 50 μs/div
		Figure 13.
		TPS61025
		LOAD TRANSIENT RESPONSE
Output Current	100 mA/div, DC	VI = 1.2 V,
Output Current	100 mA/div, DC	IL = 100 mA to 200 mA,
		IL = 100 mA to 200 mA,
		VO = 3.3 V
Output Voltage	20 mV/div, AC
		t - Time - 2 ms/div
		Figure 15.

Output Voltage	50 mV/div, AC
Inductor Current	200 mA/div, DC

Output Current	100 mA/div, DC
Output Voltage	20 mV/div, AC

www.ti.com

TPS61027

OUTPUT VOLTAGE IN POWER SAVE MODE

VI = 3.6 V,

RL = 250 Ω,

VO = 5 V

t - Time - 50 μs/div

Figure 14.

TPS61027

LOAD TRANSIENT RESPONSE

VI = 3.6 V,

IL = 100 mA to 200 mA,

VO = 5 V

t - Time - 2 ms/div

Figure 16.

Submit Documentation Feedback

Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

www.ti.com

		TPS61025
		LINE TRANSIENT RESPONSE
		VI = 1.8 V to 2.4 V,
		RL = 33 Ω,
Input Voltage	500 mV/div, AC	VO = 3.3 V
Input Voltage	500 mV/div, AC
Output Voltage	20 mV/div, AC
		t - Time - 2 ms/div
		Figure 17.
		TPS61025
Enable V/div, DC		START-UP AFTER ENABLE
Enable V/div, DC
5		VI = 2.4V,
		VI = 2.4V,
VoltageOutput DCV/div,1		RL = 33 Ω,
VoltageOutput DCV/div,1		VO = 3.3 V
		VO = 3.3 V

t - Time - 1 ms/div

Figure 19.

Inductor Current	200 mA/div, DC
Voltage At SW	2 V/div, DC

Input Voltage	500 mV/div, AC
Output Voltage	20 mV/div, AC

Enable	5 V/div, DC
Output Voltage	2 V/div, DC

TPS61020, TPS61024, TPS61025 TPS61026, TPS61027, TPS61028 TPS61029

SLVS451D–SEPTEMBER 2003–REVISED FEBRUARY 2006

TPS61027

LINE TRANSIENT RESPONSE

VI = 3 V to 3.6 V,

RL = 25 Ω,

VO = 5 V

t - Time - 2 ms/div

Figure 18.

TPS61027

START-UP AFTER ENABLE

VI = 3.6 V,

RL = 50 Ω,

VO = 5 V

Inductor Current	200 mA/div, DC
VoltageAt SW	2 V/div, DC

t-Time-500 µs/div

Figure 20.

Submit Documentation Feedback

Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029

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