Datasheet > LM2734ZQMKE/NOPB

LM2734ZQMKE/NOPB

更新时间： 2024-11-26 11:12:39

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
37页	1521K
描述
具有轻负载效率的 3V 至 20V 输入电压、1A、高频汽车类降压转换器 \| DDC \| 6 \| -40 to 125

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LM2734Z, LM2734Z-Q1

SNVS334F –JANUARY 2005–REVISED JANUARY 2016

LM2734Z/-Q1 Thin SOT 1-A Load Step-Down DC-DC Regulator

1 Features

3 Description

The LM2734Z regulator is

a monolithic, high-

•

Qualified for Automotive Applications

frequency, PWM step-down DC–DC converter

assembled in a thick 6-pin SOT and a WSON non-

pullback package. The device provides all the active

functions to provide local DC–DC conversion with fast

transient response and accurate regulation in the

smallest possible PCB area.

AEC-Q100 Qualified With the Following Results:

–

Device Temperature Grade 1: –40°C to 125°C

Ambient Operating Temperature Range

–

Device HBM ESD Classification Level 2

Device CDM ESD Classification Level C6

With a minimum of external components and online

design support through WEBENCH™, the LM2734Z

is easy to use. The ability to drive 1-A loads with an

internal 300-mΩ NMOS switch using state-of-the-art

0.5-µm BiCMOS technology results in the best power

density available. The world class control circuitry

allows for ON-times as low as 13 ns, thus supporting

exceptionally high-frequency conversion over the

entire 3-V to 20-V input operating range down to the

minimum output voltage of 0.8 V. Switching frequency

is internally set to 3 MHz, allowing the use of

extremely small surface mount inductors and chip

capacitors. Even though the operating frequency is

very high, efficiencies up to 85% are easy to achieve.

External shutdown is included, featuring an ultra-low

standby current of 30 nA. The LM2734Z uses current-

mode control and internal compensation to provide

high-performance regulation over a wide range of

operating conditions. Additional features include

internal soft-start circuitry to reduce inrush current,

pulse-by-pulse current limit, thermal shutdown, and

output overvoltage protection.

•

6-pin SOT Package, or 6-Pin WSON Package

3.0-V to 20-V Input Voltage Range

0.8-V to 18-V Output Voltage Range

1-A Output Current

3-MHz Switching Frequency

300-mΩ NMOS Switch

30-nA Shutdown Current

0.8-V, 2% Internal Voltage Reference

Internal Soft-Start

Current-Mode, PWM Operation

Thermal Shutdown

2 Applications

•

DSL Modems

Local Point of Load Regulation

Battery-Powered Devices

USB-Powered Devices

Automotive

Device Information⁽¹⁾

PART NUMBER

PACKAGE

WSON (6)

SOT (6)

BODY SIZE (NOM)

3.00 mm × 3.00 mm

1.60 mm × 2.90 mm

LM2734Z

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

the end of the data sheet.

Typical Application Circuit

Efficiency vs Load Current

.hh{Ç

{í

OUT

[a2734

OFF

Db5

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...37

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LM2734ZQMKE/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM2734ZMK/NOPB	TI	类似代替	具有轻负载效率的 3V 至 20V 输入电压、1A、高频降压转换器 \| DDC \| 6 \|

与LM2734ZQMKE/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2734ZQSD/NOPB	TI	获取价格	Thin SOT23 1A Load Step-Down DC-DC Regulator 6-WSON -40 to 125
LM2734ZQSDE/NOPB	TI	获取价格	具有轻负载效率的 3V 至 20V 输入电压、1A、高频汽车类降压转换器 \| NGG \|
LM2734ZQSDX/NOPB	TI	获取价格	Thin SOT23 1A Load Step-Down DC-DC Regulator 6-WSON -40 to 125
LM2734ZSD	NSC	获取价格	Thin SOT23 1A Load Step-Down DC-DC Regulator
LM2734ZSD	TI	获取价格	Thin SOT 1-A Load Step-Down DC-DC Regulator
LM2734ZSD/NOPB	NSC	获取价格	IC 2.5 A SWITCHING REGULATOR, 3600 kHz SWITCHING FREQ-MAX, DSO6, 3 X 3 MM, LEAD FREE, LLP-
LM2734ZSD/NOPB	TI	获取价格	Thin SOT 1-A Load Step-Down DC-DC Regulator
LM2734ZSDX	TI	获取价格	2.5A SWITCHING REGULATOR, 3600kHz SWITCHING FREQ-MAX, PDSO6, 3 X 3 MM, LLP-6
LM2734ZSDX	NSC	获取价格	Thin SOT23 1A Load Step-Down DC-DC Regulator
LM2734ZSDX/NOPB	NSC	获取价格	IC 2.5 A SWITCHING REGULATOR, 3600 kHz SWITCHING FREQ-MAX, DSO6, 3 X 3 MM, LEAD FREE, LLP-

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