MAX1536 Description
The MAX1536 constant-off-time, pulse-width-modulated (PWM) step-down DC-to-DC converter is ideal for use in +5.0V and +3.3V to low voltages for notebook and subnotebook puters.
MAX1536 Key Features
- Dynamically Selectable Output Voltage from +0.7V to VIN
- Internal PMOS/NMOS Switches 54mΩ/47mΩ On-Resistance at VIN = +4.5V 63mΩ/53mΩ On-Resistance at VIN = +3.0V
- +3.0V to +5.5V Input Voltage Range
- 1.4MHz Maximum Switching Frequency
- 2V ±0.75% Reference Output
- Constant-Off-Time PWM Operation
- Selectable Idle Mode/PWM Operation at Light Loads
- 100% Duty Factor in Dropout
- Digital Soft-Start Inrush Current Limiting
- <1µA Typical Shutdown Supply Current