Low noise linear regulator plus DC/DC with excellent transient response reference design
Description
This reference design features both a low noise LDO and a DC/DC convertor where both can source of to 3A of output current. The DC/DC design has focused on keeping transient response within 5%: a requirement when powering core voltages of digital loads. The LDO output also has good transient response and low noise (
Features
- Dual 3A Outputs in a small solution size (~400 mm2)3.3% Transient Droop @ 1.2V: 300mA to 3A: 1A/µs DC/DC output ripple less than 10mV peak to peakHigh LDO PSRR at switching frequencies: 54dB @ 750kHz: IOUT = 3ALDO output noise less than 15µV RMS: 10Hz to 100kHzMonotonic voltage ramps for both the 1.2V and 1.5V outputs
Applications
- Electronic warfare
- Position sensor
Product Categories
- Power management