L6738ATR datasheet(1/32 Pages) STMICROELECTRONICS

部件名	L6738ATR

功能描述	Embedded bootstrap diode

PDF	32 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 32 page

January 2012

Doc ID 18134 Rev 2

1/32

32

L6738A

Single-phase PWM controller

with light-load efficiency optimization

Features

■ 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

Applications

■ Memory and termination supply

■ Subsystem power supply (MCH, IOCH, PCI)

■ CPU and DSP power supply

■ Distributed power supply

■ General DC-DC converter

Description

The L6738A 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 to manage

conversions with power input VIN as low as 1.5V

and the device supply voltage ranging from 5 V to

12 V bus.

The L6738A 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 generation

of output voltages with ±0.5% accuracy over line

and temperature variations.

The oscillator is programmable up to 600 kHz.

The L6738A provides a programmable

overcurrent protection and overvoltage protection.

The current information is monitored across the

inductor DCR.

The L6738A is available in a VFQFPN 16 3x3 mm

package.

Table 1.

Device summary

Order code

Package

Packing

L6738A

VFQFPN16

Tube

L6738ATR

VFQFPN16

Tape and reel

VFQFPN16

www.st.com

类似零件编号 - L6738ATR

制造商	部件名	数据表	功能描述
STMicroelectronics	L6738	787Kb / 32P	Single-phase PWM controller with light-load efficiency optimization 03-Nov-2010
STMicroelectronics	L6738TR	787Kb / 32P	Single-phase PWM controller with light-load efficiency optimization 03-Nov-2010

More results

类似说明 - L6738ATR

制造商	部件名	数据表	功能描述
International Rectifier	IRSM505-044	981Kb / 15P	Integrated bootstrap functionality
Advanced Power Electron...	AP1430GEU6-HF	68Kb / 5P	Embedded Protection Diode
Rohm	BS2132F	2Mb / 33P	600V High Voltage 3 Phase Bridge Driver Integrated Bootstrap Diode
Infineon Technologies A...	2ED2108S06F	1Mb / 25P	650 V half bridge gate driver with integrated bootstrap diode V 2.22 2020-07-02
	2ED2109S06F	1Mb / 26P	650 V half bridge gate driver with integrated bootstrap diode V 2.22 2020-07-02
	2ED2182S06F	2Mb / 25P	650 V half-bridge gate driver with integrated bootstrap diode V 2.21 2020-07-07
	2ED21091S06F	1Mb / 26P	650 V half bridge gate driver with integrated bootstrap diode V 2.22 2020-07-02
	IRS2807DS	2Mb / 26P	600-V High- and Low-Side Driver with Bootstrap Diode Rev 1.1 2017-11-27
	2ED2103S06F	1Mb / 25P	650 V half bridge gate driver with integrated bootstrap diode V 2.3 2020-12-07
	2ED28073J06F	1Mb / 26P	600 V half-bridge gate driver with integrated bootstrap diode V 2.0 2020-04-23