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TPS657202 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS657202 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 66 page  SYS BAT 4.7 µF / 6.3 V TS NTC ISET 1 µF LiIon SYS PB_IN VLDO1 RESET SCLK SDAT LDO1 200 mA BAT INT Charger and Power Path ON or OFF FB_DCDC1 2.2 µH L1 DCDC1 200 mA TPS65720 SYS VINLDO1 VDCDC1 = 2.05 V VLDO1 = 1.85 V GPIO1 GPIO2 GPIO0 GPIO3 GPIO or 5-mA Current Sink I C Interface 2 Reset Generator and Startup Logic PGND AGND HOLD_LDO1 HOLD_DCDC1 AC 2.2 µF R1 R2 150 k R6 R5 10 k 360 k Bluetooth Chip Vin Reset INT GPIO SCLK SDAT Indication LEDs 2 × 100 k 22pF 4.7 µF 4.7 µF / 4 V 2 × 3.3 k Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS65720, TPS657201, TPS657202, TPS65721 SLVS979A – OCTOBER 2009 – REVISED SEPTEMBER 2015 TPS6572x Integrated PMIC With 1 DC-DC, 1 LDO, Battery Charger and GPIO The device allows the use of small inductors and 1 Features capacitors to achieve a small solution size. The 1 • Battery Charger With Power Path Management TPS65720 provides an output current of up to • 28-V Rated Power Path With: 200 mA on the DC-DC converter while TPS657201, TPS657202, and TPS65721 provide up to 400 mA. – 100-mA Input Current Limit The TPS6572x also integrates one 200-mA LDO. The – 500-mA Input Current Limit LDO operates with an input voltage range from 1.8 V • 300-mA Charge Current to 5.6 V, thus allowing it to be supplied from the • 200-mA Step-Down Converter for TPS65720 output of the step-down converter or directly from the system voltage. • 400-mA Step-Down Converter for TPS65721, TPS657201, TPS657202 The TPS65720, TPS657201, and TPS657202 come in a small 25-ball 2-mm × 2-mm wafer chip scale • Up to 92% Efficiency package (DSBGA) with 0.4-mm ball pitch or a • VIN Range for DCDC Converter From 2.3 V to 4-mm × 4-mm WQFN package with a 0.4-mm pitch 5.6 V (TPS65721). • 2.25-MHz Fixed Frequency Operation • Power Save Mode at Light Load Current Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) • Output Voltage Accuracy in PWM Mode ±2% TPS65720x DSBGA (25) 2.11 mm × 2.11 mm • 100% Duty Cycle for Lowest Dropout TPS65721 WQFN (32) 4.00 mm × 4.00 mm • 1 General Purpose 200-mA LDO (1) For all available packages, see the orderable addendum at • VIN Range for LDO From 1.8 V to 5.6 V the end of the data sheet. • I2C Compatible Interface • 4GPIOs Typical Application Schematic • Available in a 25-Ball DSBGA With 0.4-mm Pitch and in 4-mm × 4-mm 32-Pin WQFN Package 2 Applications • Bluetooth Headsets • Handheld Equipment • Wearables, Smart Watches • Portable Accessories 3 Description The TPS6572x device is a small power management unit targeted for Bluetooth headsets or other portable low-power consumer-end equipments. The device contains an USB friendly Lithium-Ion battery charger, a highly efficient step-down converter, a low-dropout linear regulator, and additional supporting functions. The device is controlled by an I2C interface. Several settings can be customized by the use of nonvolatile memory which is factory programmed. The 2.25-MHz step-down converter enters a low- power mode at light load for maximum efficiency across the widest possible range of load currents. For low-noise applications the devices can be forced into fixed-frequency PWM mode using the I2C-compatible interface. 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. |
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