TPS61070, TPS61071
TPS61072, TPS61073
www.ti.com |
SLVS510C–JULY 2006–REVISED MARCH 2009 |
90% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 600-mA SWITCH
FEATURES
∙90% Efficient Synchronous Boost Converter
–75-mA Output Current at 3.3 V From 0.9-V Input
–150-mA Output Current at 3.3 V From 1.8-V Input
∙Device Quiescent Current: 19 µA (Typ)
∙Input Voltage Range: 0.9 V to 5.5 V
∙Adjustable Output Voltage Up to 5.5 V
∙Power-Save Mode Version Available for Improved Efficiency at Low Output Power
∙Load Disconnect During Shutdown
∙Overtemperature Protection
∙Small 6-Pin Thin SOT23 Package
APPLICATIONS
∙All One-Cell, Two-Cell, and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery-Powered Products
∙Portable Audio Players
∙PDAs
∙Cellular Phones
∙Personal Medical Products
∙White LED Lighting
DESCRIPTION
The TPS6107x devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery. Output currents can go as high as 75 mA while using a single-cell alkaline, and discharge it down to 0.9 V. It can also be used for generating 5 V at 200 mA from a 3.3 V rail or a Li-ion battery. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the TPS61070 and TPS61073 enter the power-save mode to maintain a high efficiency over a wide load current range. The power-save mode is disabled in the TPS61071 and TPS61072, forcing the converters to operate at a fixed switching frequency. The maximum peak current in the boost switch is typically limited to a value of 600 mA.
The TPS6107x output voltage is programmed by an external resistor divider. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. The device is packaged in a 6-pin thin SOT23 package (DDC).
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L1 |
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VO |
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4.7 µH |
SW |
VOUT |
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C2 |
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R1 |
3.3 V Up To |
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10 µF |
100 mA |
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VBAT |
FB |
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0.9-V To V |
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R2 |
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O |
C1 |
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EN |
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10 µF |
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GND |
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TPS61070 |
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. |
Copyright © 2006–2009, Texas Instruments Incorporated |
Products conform to specifications per the terms of the Texas |
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Instruments standard warranty. Production processing does not |
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necessarily include testing of all parameters. |
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TPS61070, TPS61071
TPS61072, TPS61073
SLVS510C–JULY 2006–REVISED MARCH 2009 |
www.ti.com |
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
AVAILABLE OUTPUT VOLTAGE OPTIONS(1)
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OUTPUT |
POWER- |
OPERATING |
EN THRESHOLD |
PACKAGE |
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PART |
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TA |
VOLTAGE |
REFERENCE |
PACKAGE |
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SAVE MODE |
FREQUENCY |
MARKING |
NUMBER(2) |
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DC/DC |
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VOLTAGE |
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Adjustable |
Enabled |
1200 kHz |
VBAT |
AUH |
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TPS61070DDC |
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- 40°C to |
Adjustable |
Disabled |
1200 kHz |
VBAT |
AUJ |
6-Pin |
TPS61071DDC |
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85°C |
Adjustable |
Disabled |
600 kHz |
VBAT |
BUM |
TSOT23 |
TPS61072DDC |
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Adjustable |
Enabled |
1200 kHz |
1.8 V Logic |
BUN |
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TPS61073DDC |
(1)For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com.
(2)The DDC package is available taped and reeled. Add R suffix to device type (e.g., TPS61070DDCR) to order quantities of 3000 devices per reel. Add T suffix to device type (e.g., TPS61070DDCT) to order quantities of 250 devices per reel.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
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TPS6107x |
Input voltage range on SW, VOUT, VBAT, EN, FB |
-0.3 V to 7 V |
Operating virtual junction temperature range, TJ |
-40°C to 150°C |
Storage temperature range Tstg |
-65°C to 150°C |
(1)Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DISSIPATION RATINGS TABLE(1)
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THERMAL RESISTANCE |
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POWER RATING |
DERATING FACTOR |
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PACKAGE |
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ABOVE |
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ΘJA |
ΘJB |
ΘJC |
TA≤ 25°C |
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TA = 25°C |
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DDC |
130 °C/W |
27 °C/W |
41 °C/W |
769 mW |
7.7 mW/°C |
(1)This thermal data is based on assembly of the device on a JEDEC high K board. Exceeding the maximum junction temperature will force the device into thermal shutdown.
RECOMMENDED OPERATING CONDITIONS
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NOM MAX |
UNIT |
Supply voltage at VBAT, VI (TPS61070, TPS61071, TPS61072) |
0.9 |
5.5 |
V |
Supply voltage at VBAT, VI (TPS61073) |
2.3 |
5.5 |
V |
Operating free air temperature range, TA |
-40 |
85 |
°C |
Operating virtual junction temperature range, TJ |
-40 |
125 |
°C |
2 |
Submit Documentation Feedback |
Copyright © 2006–2009, Texas Instruments Incorporated |
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Product Folder Link(s): TPS61070 TPS61071 TPS61072 TPS61073 |
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TPS61070, TPS61071
TPS61072, TPS61073
www.ti.com |
SLVS510C–JULY 2006–REVISED MARCH 2009 |
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)
DC/DC STAGE |
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PARAMETER |
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Minimum input voltage range for |
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start-up |
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(TPS61070, TPS61071, TPS61072) |
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Minimum input voltage range for |
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VI |
start-up (TPS61073) |
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Input voltage range, after start-up |
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(TPS61070, TPS61071, TPS61072) |
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Input voltage range, after start-up |
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(TPS61073) |
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Output voltage range (TPS61070, |
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VO |
TPS61071, TPS61072) |
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Output voltage range (TPS61073) |
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V(FB) |
Feedback voltage |
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Oscillator frequency (TPS61070, |
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f |
TPS61071, TPS61073) |
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Oscillator frequency (TPS61072) |
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I(SW) |
Switch current limit |
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Start-up current limit |
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Boost switch-on resistance |
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Rectifying switch-on resistance |
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Total accuracy (including line and |
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load regulation) |
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Line regulation |
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Load regulation |
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Quiescent current |
VBAT |
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VOUT |
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TPS61072) |
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Quiescent current |
VBAT |
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(TPS61073) |
VOUT |
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Shutdown current (TPS61070, |
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TPS61071, TPS61072) |
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Shutdown current (TPS61073) |
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CONTROL STAGE |
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PARAMETER |
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V(UVLO) |
Undervoltage lockout threshold |
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EN input low voltage |
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VIL |
(TPS61070, TPS61071, TPS61072) |
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EN input low voltage (TPS61073) |
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EN input high voltage |
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VIH |
(TPS61070, TPS61071, TPS61072) |
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EN input high voltage (TPS61073) |
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EN input current
(TPS61070, TPS61071, TPS61072)
EN input current (TPS61073) 
Overtemperature protection 
Overtemperature hysteresis
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
RL = 270 Ω |
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1.1 |
1.2 |
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RL = 270 Ω |
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2.3 |
V |
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TA = 25°C |
0.9 |
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5.5 |
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2.3 |
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5.5 |
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1.8 |
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5.5 |
V |
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2.3 |
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5.5 |
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495 |
500 |
505 |
mV |
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960 |
1200 |
1440 |
kHz |
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480 |
600 |
720 |
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VOUT= 3.3 V |
500 |
600 |
700 |
mA |
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0.5 × ISW |
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mA |
VOUT= 3.3 V |
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480 |
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mΩ |
VOUT= 3.3 V |
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600 |
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mΩ |
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3% |
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1% |
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1% |
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IO = 0 mA, V(EN) = VBAT = 1.2 V, |
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0.5 |
1 |
µA |
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VOUT = 3.3 V, TA = 25°C |
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19 |
30 |
µA |
IO = 0 mA, V(EN) = 1.8 V, VBAT = 2.4 V, |
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1 |
1.5 |
µA |
VOUT = 5 V, TA = 25°C |
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30 |
50 |
µA |
V(EN) = 0 V, VBAT = 1.2 V, TA = 25°C |
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0.05 |
0.5 |
µA |
V(EN) = 0 V, VBAT = 3.6 V, TA = 25°C |
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0.05 |
1.5 |
µA |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
V(BAT) voltage decreasing |
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0.8 |
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V |
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0.2 × VBAT |
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0.4 |
V |
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0.8 × VBAT |
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1.2 |
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V |
Clamped on GND or VBAT |
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0.01 |
0.1 |
µA |
Clamped on GND or VBAT |
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0.01 |
0.3 |
µA |
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140 |
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°C |
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20 |
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°C |
Copyright © 2006–2009, Texas Instruments Incorporated |
Submit Documentation Feedback |
3 |
Product Folder Link(s): TPS61070 TPS61071 TPS61072 TPS61073 |
|
|
TPS61070, TPS61071
TPS61072, TPS61073
SLVS510C–JULY 2006–REVISED MARCH 2009 |
www.ti.com |
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PIN ASSIGNMENTS |
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DDC PACKAGE |
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TOP VIEW |
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VBAT |
VOUT |
FB |
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SW |
GND |
EN |
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Terminal Functions |
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TERMINAL |
I/O |
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DESCRIPTION |
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NAME |
NO. |
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EN |
3 |
I |
Enable input (1/VBAT enabled, 0/GND disabled) |
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FB |
4 |
I |
Voltage feedback for programming the output voltage |
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GND |
2 |
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IC ground connection for logic and power |
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SW |
1 |
I |
Boost and rectifying switch input |
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VBAT |
6 |
I |
Supply voltage |
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VOUT |
5 |
O |
Boost converter output |
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4 |
Submit Documentation Feedback |
Copyright © 2006–2009, Texas Instruments Incorporated |
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Product Folder Link(s): TPS61070 TPS61071 TPS61072 TPS61073 |
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