TPS51427A Description
The TPS51427A is a dual synchronous step-down controller designed for notebook and mobile munications applications. This device is part of a low-cost suite of notebook power bus regulators that enables system designs with low external ponent counts. The TPS51427A includes two pulse-width-modulation (PWM) controllers, SMPS1 and SMPS2.
TPS51427A Key Features
- 23 Fixed-Frequency Emulated On-Time Control; Frequency Selectable from Three Options
- D-CAP™ Mode Enables Fast Transient Response Less than 100 ns
- Advanced Ramp pensation Allows Low Output Ripple with Minimal Jitter
- Selectable PWM-Only/OOA™/Auto-Skip Modes
- Wide Input Voltage Range: 5.5 V to 28 V
- Dual Fixed or Adjustable SMPS
- 0.7 V to 5.9 V (Channel1)
- 0.5 V to 2.5 V (Channel2)
- Fixed 3.3-VREF Output Capable of Sourcing
- Temperature pensated Low-Side RDS(on)