LM3687 Overview
The LM3687 is a step-down DC-DC converter with an integrated low dropout Linear Regulator optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides a dual output with fixed output voltages and bined load current up to 750mA in post regulation mode or 1100mA in independent mode of operation, over an input voltage range from 2.7V to 5.5V. There are several...
LM3687 Key Features
- 750mA Maximum Load Capability
- 1.8MHz PWM Fixed Switching Frequency
- Automatic PFM/PWM Mode Switching
- 27µA typ. Quiescent Current
- Internal Synchronous Rectification for High
- Internal Soft Start
- Startup Mode
- Load Transients < 25mVpeak Typ
- Line Transients < 1mVpeak Typ
- Very Low Dropout Voltage: 82mV Typ. at
