LP3997 datasheet(7/18 Pages) TI

Part #	LP3997

Description	Micropower 250-mA CMOS LDO Regulator With Error Flag and Power-On-Reset

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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7 / 18 page

TIME (500 Ps/DIV)

CBYP = 0.1 PF

IL = 1 mA

TIME (50 Ps/DIV)

0.5

VIN = 4.3V

2.0

1.0

1.5

TIME (500 Ps/DIV)

250

CIN = COUT = 2.2 PF

TIME (100 Ps/DIV)

CBYP = 0

IL = 1 mA

TIME (100 Ps/DIV)

4.9

CIN = COUT = 2.2 PF

CBYP = 0

IL = 1 to 250 mA

4.3

TIME (100 Ps/DIV)

4.9

CIN = COUT = 2.2 PF

CBYP = 0.1 PF

IL = 1 to 250 mA

4.3

LP3997

www.ti.com

SNVS272B – MAY 2004 – REVISED MAY 2013

Typical Performance Characteristics. (continued)

Unless otherwise noted, SD = 950mV, VIN = VOUT + 1.0V, CIN = 2.2 µF, IOUT = 1 mA, COUT = 2.2 µF and CBYP = 0.1 µF.

Typical values and limits appearing in normal type apply for TJ = 27°C. Limits appearing in boldface type apply over the full

temperature range for operation,

−40 to +125°C.

Line Transient

Load Transient (No CBYP)

Enable Start-up Time

Short Circuit Current

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