Description
The LM3281 is a high-efficiency low-noise miniature DC-DC converter optimized for powering noisesensitive wireless connectivity chipsets and RF Front End Modules (FEMs) from a single Lithium-Ion cell.
Features
- 1 Operates from a Single Li-Ion Cell (3 V to 5.5 V).
- 6-MHz (typ. ) PWM Switching Frequency.
- Fixed Output Voltage: 3.3 V.
- Up to 1.2-A Maximum Load Capability.
- High Efficiency: 94% (typ. ) with 3.8-V VIN at
300 mA.
- Analog Bypass: 60-mV (typ. ) Drop-Out at 600 mA.
- Low IQ: 16 µA typical, 25 µA maximum.
- Automatic ECO/PWM/Bypass Mode Change.
- Forced PWM Mode for Low Output-Voltage Ripple.
- Soft-Start Limits Input Curr.
LM3281 Datasheet
