LM3248
FEATURES
- 2 Output Voltage VOUT Adjustable from 0.4V to 4.0V (typ.)
- Input Voltage Range VIN from 2.7V to 5.5V
- Boost-Buck and Buck (Boost-Bypass)
Operating Modes with Seamless Transition
- 2.5A Load Current Capability
- High Conversion Efficiency (> 90% typ.)
- High-Efficiency PFM/PWM Modes with
Seamless Transition
- Very Fast Transient Response: 10 µs
- ACB Reduces Inductor Size Requirements
- Dither to aid RX Band Noise pliance
APPLICATIONS
- Multi-mode 2G/3G/4G and 3GPP/LTE Smartphones and Tablets
- Hand-Held Radios
- RF Mobile Devices
DESCRIPTION
The LM3248 is a PWM/PFM Boost-Buck DC/DC converter that provides efficient utilization of battery power over a wide voltage range. The device architecture is suitable for advanced RF front-end systems that demand dynamic voltage and current to support converged power amplifier architectures operating in 2G/3G/4G and 3GPP/LTE modes. For example, the LM3248 is designed to produce higher output voltages while maintaining PFM mode as...
