Datasheet > LMR62421_15

LMR62421_15

更新时间： 2024-01-28 12:04:56

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
32页	1151K
描述
SIMPLE SWITCHER 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23

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LMR62421_15 数据手册

LMR62421

www.ti.com

SNVS734B –OCTOBER 2011–REVISED APRIL 2013

LMR62421 SIMPLE SWITCHER 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23

Check for Samples: LMR62421

FEATURES

DESCRIPTION

The LMR62421 is an easy-to-use, space-efficient

2.1A low-side switch regulator ideal for Boost and

SEPIC DC-DC regulation. It provides all the active

functions to provide local DC/DC conversion with fast-

transient response and accurate regulation in the

smallest PCB area. Switching frequency is internally

set to 1.6 MHz, allowing the use of extremely small

surface mount inductor and chip capacitors while

providing efficiencies near 90%. Current-mode control

and internal compensation provide ease-of-use,

minimal component count, and high-performance

regulation over a wide range of operating conditions.

External shutdown features an ultra-low standby

current of 80 nA ideal for portable applications. Tiny

5-pin SOT-23 and 6-pin WSON packages provide

space-savings. Additional features include internal

soft-start, circuitry to reduce inrush current, pulse-by-

pulse current limit, and thermal shutdown.

•

Input Voltage Range of 2.7V to 5.5V

Output Voltage up to 24V

Switch Current up to 2.1A

1.6 MHz Switching Frequency

Low Shutdown Iq, 80 nA

Cycle-by-Cycle Current Limiting

Internally Compensated

•

Internal Soft-Start

5-Pin SOT-23 (2.92 x 2.84 x 1mm) and 6-Pin

WSON (3 x 3 x 0.8 mm) Packaging

•

Fully Enabled for WEBENCH® Power Designer

PERFORMANCE BENEFITS

•

Extremely Easy to Use

Tiny Overall Solution Reduces System Cost

APPLICATIONS

•

Boost / SEPIC Conversions from 3.3V, 5V Rails

Space Constrained Applications

Embedded Systems

LCD Displays

LED Applications

System Performance

Efficiency vs Load Current

V_OUT= 20V

Efficiency vs Load Current

V_OUT= 12V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...32

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与LMR62421_15相关器件

型号	品牌	获取价格	描述	数据表
LMR62421XMF	TI	获取价格	SIMPLE SWITCHER? 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XMF/NOPB	TI	获取价格	SIMPLE SWITCHER 2.7V to 5.5V, 24Vout, 2.1A Boost Converter in SOT-23 5-SOT-23 -40 to 125
LMR62421XMFE	TI	获取价格	SIMPLE SWITCHER? 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XMFE/NOPB	TI	获取价格	暂无描述
LMR62421XMFX	TI	获取价格	SIMPLE SWITCHER? 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XMFX/NOPB	TI	获取价格	SIMPLE SWITCHER 2.7V to 5.5V, 24Vout, 2.1A Boost Converter in SOT-23 5-SOT-23 -40 to 125
LMR62421XSD	TI	获取价格	SIMPLE SWITCHER? 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XSD/NOPB	TI	获取价格	SIMPLE SWITCHER 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XSDE	TI	获取价格	SIMPLE SWITCHER? 24Vout, 2.1A Step-Up Voltage Regulator in SOT-23
LMR62421XSDE/NOPB	TI	获取价格	SIMPLE SWITCHER 2.7V to 5.5V, 24Vout, 2.1A Boost Converter in SOT-23 6-WSON -40 to 125

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