Datasheet > LMR12010_15

LMR12010_15

更新时间： 2024-09-16 01:09:51

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德州仪器 - TI		/
页数	文件大小	规格书
26页	1131K
描述
SIMPLE SWITCHER 20Vin, 1A Step-Down Voltage Regulator in SOT-23

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LMR12010_15 数据手册

LMR12010

www.ti.com

SNVS731A –SEPTEMBER 2011–REVISED SEPTEMBER 2011

LMR12010 SIMPLE SWITCHER 20Vin, 1A Step-Down Voltage Regulator in SOT-23

Check for Samples: LMR12010

FEATURES

DESCRIPTION

The LMR12010 regulator is

a monolithic, high

•

Input Voltage Range of 3V to 20V

Output Voltage Range of 0.8V to 17V

Output Current Up to 1A

frequency, PWM step-down DC/DC converter in a 6-

pin Thin SOT-23 package. It provides all the active

functions to provide local DC/DC conversion with fast

transient response and accurate regulation in the

smallest possible PCB area.

•

1.6MHz (LMR12010X) and 3 MHz (LMR12010Y)

Switching Frequencies

With a minimum of external components and online

design support through WEBENCH, the LMR12010 is

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

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

0.5µm BiCMOS technology results in the best power

density available. The world class control circuitry

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

exceptionally high frequency conversion over the

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

minimum output voltage of 0.8V. Switching frequency

is internally set to 1.6 MHz (LMR12010X) or 3 MHz

(LMR12010Y), allowing the use of extremely small

surface mount inductors and chip capacitors. Even

though the operating frequencies are very high,

efficiencies up to 90% are easy to achieve. External

shutdown is included, featuring an ultra-low stand-by

current of 30nA. The LMR12010 utilizes current-mode

control and internal compensation to provide high-

•

Low Shutdown Iq, 30 nA Typical

Internal Soft-start

Internally Compensated

Current-Mode PWM Operation

Thermal Shutdown

Thin SOT-23-6 Package (2.97 x 1.65 x 1mm)

Fully Enabled for WEBENCH^®Power Designer

APPLICATIONS

•

Point-of-Load Conversions from 3.3V, 5V, and

12V Rails

•

Space Constrained Applications

Battery Powered Equipment

Industrial Distributed Power Applications

Power Meters

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 over-voltage protection.

Portable Hand-Held Instruments

PERFORMANCE BENEFITS

•

Extremely Easy to Use

Tiny Overall Solution Reduces System Cost

BOOST

OUT

LMR12010

OFF

GND

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.

SIMPLE SWITCHER, WEBENCH are registered trademarks of Texas Instruments.

All other 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...26

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与LMR12010_15相关器件

型号	品牌	获取价格	描述	数据表
LMR12010XMK	NSC	获取价格	SIMPLE SWITCHER? 20Vin, 1A Step-Down Voltage Regulator in SOT-23
LMR12010XMK	TI	获取价格	LMR12010 SIMPLE SWITCHER ? 20Vin, 1A Step-Down Voltage Regulator in
LMR12010XMK/NOPB	TI	获取价格	SIMPLE SWITCHER 20Vin, 1A Step-Down Voltage Regulator in SOT-23
LMR12010XMKE	NSC	获取价格	SIMPLE SWITCHER? 20Vin, 1A Step-Down Voltage Regulator in SOT-23
LMR12010XMKE	TI	获取价格	LMR12010 SIMPLE SWITCHER ? 20Vin, 1A Step-Down Voltage Regulator in
LMR12010XMKE/NOPB	TI	获取价格	3V to 20V, 1A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125
LMR12010XMKE-NOPB	TI	获取价格	Input Voltage Range of 3V to 20V, Output Voltage Range of 0.8V to 17V
LMR12010XMKX	NSC	获取价格	SIMPLE SWITCHER? 20Vin, 1A Step-Down Voltage Regulator in SOT-23
LMR12010XMKX	TI	获取价格	LMR12010 SIMPLE SWITCHER ? 20Vin, 1A Step-Down Voltage Regulator in
LMR12010XMKX/NOPB	TI	获取价格	SIMPLE SWITCHER 20Vin, 1A Step-Down Voltage Regulator in SOT-23

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