LMR12010YMKESLASHNOPB datasheet(2/26 Pages) TI

Part #	LMR12010YMKE/NOPB

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

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Manufacturer	TI [Texas Instruments]

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1

2

3

6

5

4

1

2

3

6

5

4

BOOST

GND

FB

SW

VIN

EN

LMR12010

SNVS731A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011

www.ti.com

System Performance

Efficiency

vs

Load Current - "X" VOUT = 5V

Load Current - "Y" VOUT = 5V

Connection Diagram

Figure 1. 6-Lead SOT

Package Number DDC0006A

Figure 2. Pin 1 Identification

PIN DESCRIPTIONS

Name

Function

1

BOOST

Boost voltage that drives the internal NMOS control switch. A bootstrap

capacitor is connected between the BOOST and SW pins.

2

GND

Signal and Power ground pin. Place the bottom resistor of the feedback

network as close as possible to this pin for accurate regulation.

3

FB

Feedback pin. Connect FB to the external resistor divider to set output

voltage.

4

EN

Enable control input. Logic high enables operation. Do not allow this pin to

float or be greater than VIN + 0.3V.

5

VIN

Input supply voltage. Connect a bypass capacitor to this pin.

6

SW

Output switch. Connects to the inductor, catch diode, and bootstrap

capacitor.

2

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LMR12010YMKE/NOPB Datasheet(PDF) 2 Page - Texas Instruments

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