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TPS5103 - Multiple Mode Synchronous DC/DC Controller

General Description

The TPS5103 is a synchronous buck dc/dc controller, designed for notebook PC system power.

The controller has three user-selectable operation modes available: hysteretic mode, fixed-frequency PWM control, or SKIP control.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TPS5103 MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER D Step-Down DC-DC Converter D Three Operation-Modes – Heavy Load: – Fixed Frequency PWM – Hysteretic (User Selectable) – Light Load: – Skip Mode D 4.5-V to 25-V Input Voltage Range D Adjustable Output Voltage Down to 1.2 V D 95% Efficiency D Standby Control D Overcurrent Protection D UVLO for Internal 5-V Regulation D Low-Standby Current . . . 0.5 mA Typical D TA = –40°C to 85°C SLVS240A – SEPTEMBER 1999 – REVISED MAY 2001 DB PACKAGE (TOP VIEW) SOFTSTART 1 INV 2 FB 3 CT 4 RT 5 GND 6 REF 7 COMP 8 PWM/SKIP 9 STBY 10 20 LH 19 OUT_u 18 LL 17 OUT_d 16 OUTGND 15 TRIP 14 VCC_SENSE 13 VCC 12 VREF5 11 VREG5V_IN description The TPS5103 is a synchronous buck dc/dc controller, designed for notebook PC system power.