TPS60100

` Up to 200-mA Output Current
` Less Than 5-mV_pp Output Voltage Ripple
` No Inductors Required/Low EMI
` Regulated 3.3-V ±4% Output
` Only Four External Components Required
` Up to 90% Efficiency
` 1.8-V to 3.6-V Input Voltage Range
` 50-mA Quiescent Supply Current
` 0.05-mA Shutdown Current
` Load Isolated in Shutdown
` Space-Saving Thermally-Enhanced TSSOP PowerPADE<sup>TM</sup> Package
`  Evaluation Module Available (TPS60100EVM131)

Replaces DC/DC Converters With Inductors in
Battery-Powered Applications
Two Battery Cells to 3.3-V Conversion
Portable Instruments
Battery-Powered Microprocessor and DSP Systems
Miniature Equipment
Backup-Battery Boost Converters
PDAs
Laptops
Handheld Instrumentation
Medical Instruments
Cordless Phones

absolute maximum ratings (unless otherwise noted)†‡
Input voltage range, V_I (IN, OUT, ENABLE, SKIP, COM, 3V8, FB, SYNC) . . . . . . . . . . . . . . . . 0.3 V to 5.5 V
Differential input voltage, V_ID (C1+, C2+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (V_OUT + 0.3 V)
Differential input voltage, V_ID (C1, C2 to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (_VIN + 0.3 V)
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Tables
Continuous output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  300 mA
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  260
Maximum junction temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  150

† 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.

‡ V_ENABLE, V_SKIP, V_COM, V_3V8 and V_SYNC can exceed V_IN up to the maximum rated voltage without increasing the leakage current drawn by these mode select inputs.

The TPS60100 step-up, regulated charge pump generates a 3.3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). Output current is 200 mA from a 2-V input. Only four external capacitors are needed to build a complete low-noise dc/dc converter. The push-pull operating mode of two single-ended charge pumps assures the low output voltage ripple as current is continuously transferred to the output. From a 2-V input, the TPS60100 can start into full load with loads as low as 16 W.

The TPS60100 features either constant frequency mode to minimize noise and output voltage ripple or the power-saving pulse-skip mode to extend battery life at light loads. The TPS60100 switching frequency is 300 kHz. The logic shutdown function reduces the supply current to 1-mA (max) and disconnects the load from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This dc/dc converter TPS60100 requires no inductors and has low EMI. It is available in the small 20-pin TSSOP PowerPADE^TM package (PWP).