LM5165 3-V to 65-V Input, 150-mA Synchronous Buck Converter With Ultra-Low IQ

1 Features

Wide input voltage range of 3 V to 65 V
10.5-µA no-load quiescent current
–40°C to 150°C junction temperature range
Fixed (3.3 V and 5 V) or adjustable output voltages
Meets EN55022 / CISPR 22 EMI standards
Integrated 2-Ω PMOS buck switch
- Supports 100% duty cycle for low dropout
Integrated 1-Ω NMOS synchronous rectifier
- Eliminates external rectifier diode
Programmable current limit setpoint (four levels)
Selectable PFM or COT mode operation
1.223-V ±1% internal voltage reference
900-µs internal or programmable soft start
Active slew rate control for low EMI
Diode emulation mode and pulse skipping for ultra-high light-load efficiency performance
Monotonic start-up into prebiased output
No loop compensation or bootstrap components
Precision enable and input UVLO with hysteresis
Pin-to-pin compatible with the LM5166
Thermal shutdown protection with hysteresis
10-pin, 3-mm × 3-mm VSON package
Use TPSM265R1 module for faster time to market
Create a custom regulator design using WEBENCH® Power Designer