L6738 Single Phase PWM Controller with Light-Load Efficiency Optimization

The L6738 is a single-phase step-down controller with integrated high-current drivers that provides complete control logic and protection to realize a DC-DC converter.

The device flexibility allows the management of conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.

The L6738 features a proprietary algorithm that allows light-load efficiency optimization, boosting efficiency without compromising the output voltage ripple.

The integrated 0.8 V reference allows the generation of output voltages with ±0.5% accuracy over line and temperature variations.

The oscillator is programmable up to 600 kHz.

The L6738 provides a programmable dual-level overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.

The L6738 is available in a VFQFPN 16 3x3 mm package.

技术特性

Flexible power supply from 5 V to 12 V bus
Power conversion input as low as 1.5 V
Light-load efficiency optimization
Embedded bootstrap diode
VIN detector
0.8 V internal reference
0.5% output voltage accuracy
Remote GND recovery
High-current integrated drivers
Sensorless and programmable precise-OC sense across inductor DCR
OV protection
Programmable oscillator up to 600 kHz
LS-less to manage pre-bias startup
Adjustable output voltage
Disable function
Internal soft-start
VFQFPN 16 3x3 mm package

功能框图

L6738 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
L6738TR	Active		1000	VFQFPN 16 3x3x1.0	Tape And Reel
L6738	Active		1000	VFQFPN 16 3x3x1.0	Tube

DATASHEET

描述	版本	大小
L6738 : DS7008: Single-phase PWM controller with light-load efficiency optimization	2	774KB