Datasheet > LM26400Y

LM26400Y

更新时间： 2024-11-24 02:58:43

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
33页	4735K
描述
LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator

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LM26400Y

SNVS457D –FEBRUARY 2007–REVISED OCTOBER 2015

LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator

1 Features

3 Description

The LM26400Y device is a monolithic, two-output

fixed-frequency PWM step-down DC-DC regulator, in

a 16-pin WSON or thermally-enhanced HTSSOP

•

Input Voltage Range of 3 V to 20 V

Dual 2-A Output

Output Voltage Down to 0.6 V

Internal Compensation

package. With

a minimum number of external

components and internal loop compensation, the

LM26400Y is easy to use.

500-kHz PWM Frequency

Separate Enable Pins

The ability to drive 2-A loads with an internal 175-mΩ

NMOS switch using state-of-the-art 0.5-µm BiCMOS

technology results in a high-power density design.

The world class control circuitry allows for an ON-

time as low as 40 ns, thus supporting high-frequency

conversion over the entire input range of 3 V to 20 V

and down to an output voltage of only 0.6 V. The

LM26400Y utilizes peak current-mode control and

internal compensation to provide high-performance

regulation over a wide range of line and load

conditions. Switching frequency is internally set to

500 kHz, optimal for a broad range of applications in

terms of size versus thermal tradeoffs.

Separate Soft-Start Pins

Frequency Foldback Protection

175-mΩ NMOS Switch

Integrated Bootstrap Diodes

Overcurrent Protection

HTSSOP and WSON Packages

Thermal Shutdown

2 Applications

•

DTV-LCD

Given a nonsynchronous architecture, efficiencies

above 90% are easy to achieve. External shutdown is

included, enabling separate turnon and turnoff of the

Set-Top Boxes

XDSL

two

channels.

Additional

features

include

Automotive

programmable soft-start circuitry to reduce inrush

current, pulse-by-pulse current limit and frequency

foldback, integrated bootstrap structure, and thermal

shutdown.

Computing Peripherals

Industrial Controls

Points-of-Load

Device Information⁽¹⁾

PART NUMBER

PACKAGE

WSON (16)

HTSSOP (16)

BODY SIZE (NOM)

5.00 mm × 5.00 mm

4.40 mm × 5.00 mm

LM26400Y

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...33

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LM26400Y 替代型号

型号	品牌	替代类型	描述	数据表
LM26420	TI	功能相似	Dual 2-A Automotive-Qualified, High-Efficiency Synchronous DC-DC Converter
LM26420-Q1	TI	功能相似	LM26420/LM26420-Q0/Q1 Dual 2-A Automotive-Qualified, High-Efficiency Synchronous DC-DC Con

与LM26400Y相关器件

型号	品牌	获取价格	描述	数据表
LM26400Y_0708	NSC	获取价格	Dual 2A, 500kHz Wide Input Range Buck Regulator
LM26400Y_15	TI	获取价格	LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator
LM26400YMH	NSC	获取价格	Dual 2A, 500kHz Wide Input Range Buck Regulator
LM26400YMH/NOPB	NSC	获取价格	IC 2 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO16, ETSSOP-16, Switching Regul
LM26400YMH/NOPB	TI	获取价格	LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator
LM26400YMHX	NSC	获取价格	Dual 2A, 500kHz Wide Input Range Buck Regulator
LM26400YMHX/NOPB	NSC	获取价格	IC 2 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO16, ETSSOP-16, Switching Regul
LM26400YMHX/NOPB	ROCHESTER	获取价格	2 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO16, ETSSOP-16
LM26400YMHX/NOPB	TI	获取价格	LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator
LM26400YSD	NSC	获取价格	Dual 2A, 500kHz Wide Input Range Buck Regulator

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