90% Efficient Synchronous Boost Converter With …

1 Product Sample & Technical Tools & Support &. Folder Buy Documents Software Community TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015. TPS6107x 90% Efficient Synchronous Boost Converter with 600-mA Switch 1 Features 3 Description 1 90% Efficient Synchronous Boost Converter The TPS6107x devices provide a power supply solution for products powered by either a one-cell, 75-mA Output Current at V From two-cell, or three-cell alkaline, NiCd or NiMH, or one- Input cell Li-ion or Li-polymer battery. Output currents can 150-mA Output Current at V From go as high as 75 mA while using a single-cell Input alkaline, and discharge it down to V. It can also Device Quiescent Current: 19 A (Typ) be used for generating 5 V at 200 mA from a rail or a Li-ion battery. The Boost Converter is based Input Voltage Range: V to V on a fixed frequency, pulse-width-modulation (PWM). Adjustable Output Voltage Up to V controller using a Synchronous rectifier to obtain Power-Save Mode Version Available for maximum efficiency.

2 At low load currents the Improved Efficiency at Low Output Power TPS61070 and TPS61073 enter the power-save mode to maintain a high efficiency over a wide load Load Disconnect During Shutdown current range. The power-save mode is disabled in Overtemperature Protection the TPS61071 and TPS61072, forcing the converters Small 6-Pin Thin SOT23 Package to operate at a fixed switching frequency. The maximum peak current in the Boost switch is typically 2 Applications limited to a value of 600 mA. All One-Cell, Two-Cell, and Three-Cell Alkaline, The TPS6107x output voltage is programmed by an NiCd or NiMH or Single-Cell Li external resistor divider. The Converter can be disabled to minimize battery drain. During shutdown, Battery-Powered Products the load is completely disconnected from the battery. Portable Audio Players The device is packaged in a 6-pin thin SOT23. PDAs package (DDC). Cellular Phones Device Information(1). Personal Medical Products PART NUMBER PACKAGE BODY SIZE (NOM).

3 White LED Lighting TPS61070. TPS61071. SOT (6) mm x mm TPS61072. TPS61073. (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Typical Application Circuit L1. VOUT VO. H SW. C2 V Up To R1. 10 F 100 mA. vbat FB. To VO R2. C1 EN. 10 F. GND. TPS61070. 1. An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015 Table of Contents 1 Features .. 1 Feature 9. 2 Applications .. 1 Device Functional 11. 3 Description .. 1 11 Application and 12. 4 Typical Application Circuit .. 1 Application 12. Typical Application .. 12. 5 Revision 2. System Examples .. 17. 6 Device Comparison 3. 12 Power Supply Recommendations .. 19. 7 Pin Configuration and Functions .. 3. 13 19. 8 4. Layout Guidelines .. 19. Absolute Maximum Ratings .. 4.

4 Layout Example .. 19. ESD 4. Thermal Considerations .. 20. Recommended Operating 4. Thermal Information .. 4 14 Device and Documentation Support .. 21. Device 21. Electrical 5. Related Links .. 21. Typical Characteristics .. 6. Trademarks .. 21. 9 Parameter Measurement Information .. 8. Electrostatic Discharge Caution .. 21. 10 Detailed Description .. 9. Glossary .. 21. Overview .. 9. 15 Mechanical, Packaging, and Orderable Functional Block Diagram .. 9. Information .. 21. 5 Revision History Changes from Revision D (December 2014) to Revision E Page Changed the Device Options Table To: Device Comparison Table and included the Part Number column .. 3. Changes from Revision C (March 2009) to Revision D Page Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section.

5 1. 2 Submit Documentation Feedback Copyright 2006 2015, Texas Instruments Incorporated Product Folder Links: TPS61070 TPS61071 TPS61072 TPS61073. TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015. 6 Device Comparison Table OUTPUT VOLTAGE EN THRESHOLD. PART NUMBER POWER-SAVE MODE OPERATING FREQUENCY. DC/DC REFERENCE VOLTAGE. TPS61070 DDC Adjustable Enabled 1200 kHz vbat . TPS61071 DDC Adjustable Disabled 1200 kHz vbat . TPS61072 DDC Adjustable Disabled 600 kHz vbat . TPS61073 DDC Adjustable Enabled 1200 kHz V Logic 7 Pin Configuration and Functions DDC Package 6 Pins Top View vbat VOUT FB. 6 5 4. ABC. 1 2 3. SW GND EN. Pin Functions PIN. I/O DESCRIPTION. NAME NO. EN 3 I Enable input (1/ vbat enabled, 0/GND disabled). FB 4 I Voltage feedback for programming the output voltage GND 2 IC ground connection for logic and power SW 1 I Boost and rectifying switch input vbat 6 I Supply voltage VOUT 5 O Boost Converter output Copyright 2006 2015, Texas Instruments Incorporated Submit Documentation Feedback 3.

6 Product Folder Links: TPS61070 TPS61071 TPS61072 TPS61073. TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015 8 Specifications Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1). MIN MAX UNIT. Input voltage on SW, VOUT, vbat , EN, FB 7 V. Operating virtual junction temperature, TJ -40 150 C. Storage temperature, Tstg -65 150 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. ESD Ratings VALUE UNIT. Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) 2000. V(ESD) Electrostatic discharge Charged-device model (CDM), per JEDEC specification JESD22- V. 750. C101 (2). (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

7 Manufacturing with less than 500-V HBM is possible with the necessary precautions. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Manufacturing with less than 250-V CDM is possible with the necessary precautions. Recommended Operating Conditions MIN NOM MAX UNIT. Supply voltage at vbat , VI (TPS61070, TPS61071, TPS61072) V. Supply voltage at vbat , VI (TPS61073) V. Operating free air temperature range, TA -40 85 C. Operating virtual junction temperature range, TJ -40 125 C. Thermal Information TPS6107x THERMAL METRIC (1) DDC UNIT. 6 PINS. R JA Junction-to-ambient thermal resistance R JC(top) Junction-to-case (top) thermal resistance R JB Junction-to-board thermal resistance C/W. JT Junction-to-top characterization parameter JB Junction-to-board characterization parameter R JC(bot) Junction-to-case (bottom) thermal resistance n/a (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

8 4 Submit Documentation Feedback Copyright 2006 2015, Texas Instruments Incorporated Product Folder Links: TPS61070 TPS61071 TPS61072 TPS61073. TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015. 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). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT. DC/DC STAGE. Minimum input voltage range for start- up RL = 270 (TPS61070, TPS61071, TPS61072). Minimum input voltage range for start- RL = 270 VI up (TPS61073) V. Input voltage range, after start-up TA = 25 C (TPS61070, TPS61071, TPS61072). Input voltage range, after start-up (TPS61073). Output voltage range (TPS61070, VO TPS61071, TPS61072) V. Output voltage range (TPS61073) V(FB) Feedback voltage 495 500 505 mV. Oscillator frequency (TPS61070, 960 1200 1440. f TPS61071, TPS61073) kHz Oscillator frequency (TPS61072) 480 600 720.

9 I(SW) Switch current limit VOUT= V 500 600 700 mA. Start-up current limit ISW mA. Boost switch-on resistance VOUT= V 480 m . Rectifying switch-on resistance VOUT= V 600 m . Total accuracy (including line and 3%. load regulation). Line regulation 1%. Load regulation 1%. Quiescent current vbat 1 A. IO = 0 mA, V(EN) = vbat = V, (TPS61070, TPS61071, VOUT VOUT = V, TA = 25 C 19 30 A. TPS61072). Quiescent current vbat IO = 0 mA, V(EN) = V, vbat = V, 1 A. (TPS61073) VOUT VOUT = 5 V, TA = 25 C 30 50 A. Shutdown current (TPS61070, V(EN) = 0 V, vbat = V, TA = 25 C A. TPS61071, TPS61072). Shutdown current (TPS61073) V(EN) = 0 V, vbat = V, TA = 25 C A. CONTROL STAGE. V(UVLO) Undervoltage lockout threshold V(BAT) voltage decreasing V. EN input low voltage . VIL (TPS61070, TPS61071, TPS61072) vbat V. EN input low voltage (TPS61073) EN input high voltage . VIH (TPS61070, TPS61071, TPS61072) vbat V. EN input high voltage (TPS61073) EN input current Clamped on GND or vbat A. (TPS61070, TPS61071, TPS61072).

10 EN input current (TPS61073) Clamped on GND or vbat A. Overtemperature protection 140 C. Overtemperature hysteresis 20 C. Copyright 2006 2015, Texas Instruments Incorporated Submit Documentation Feedback 5. Product Folder Links: TPS61070 TPS61071 TPS61072 TPS61073. TPS61070, TPS61071, TPS61072, TPS61073. SLVS510E JULY 2006 REVISED MARCH 2015 Typical Characteristics Table of Graphs FIGURE. Maximum output current vs Input voltage Figure 1. vs Output current Figure 2. vs Output current Figure 3. Efficiency vs Output current Figure 4. vs Input voltage Figure 5. vs Input voltage Figure 6. vs Output current Figure 7. Output voltage vs Output current Figure 8. No load supply current into VOUT vs Input voltage Figure 9. 600 100. TPS61070 vbat = V. 550 90 VO = V. 500. Maximum Output Current mA. 80. 450 VO = V. 70. 400. 350 VO = 5 V Efficiency % 60. VO = V vbat = V. 300 50. 250 40. 200. 30. 150. 20 TPS61071. 100 VO = V. 10. 50. 0 0. 1 10 100 1k VI Input Voltage V IO Output Current mA. Figure 1.