LP5912Q1.2DRVTQ1 datasheet(7/33 Pages) TI1

Part #	LP5912Q1.2DRVTQ1

Description	Automotive 500-mA Low-Noise, Low-IQ LDO

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7

LP5912-Q1

www.ti.com

SNVSAA8C – DECEMBER 2015 – REVISED SEPTEMBER 2016

Product Folder Links: LP5912-Q1

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Electrical Characteristics (continued)

VIN = VOUT(NOM) + 0.5 V or 1.6 V, whichever is greater; VEN = 1.3 V, CIN = 1 µF, COUT = 1 µF, IOUT = 1 mA (unless otherwise

stated).

(1)(2)(3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TRANSITION CHARACTERISTICS

ΔVOUT

Line transients(9)

For VIN ↑ and VOUT(NOM) ≥ 1.1 V:

VIN = (VOUT(NOM) + 0.5 V) to (VOUT(NOM) + 1.1 V),

VIN trise = 30 µs

1

mV

For VIN ↑ and VOUT(NOM) < 1.1 V:

VIN = 1.6 V to 2.2 V,

VIN trise = 30 µs

For VIN ↓ and VOUT(NOM) ≥ 1.1 V:

VIN = (VOUT(NOM) + 1.1 V) to (VOUT(NOM) + 0.5 V)

VIN tfall = 30 µs

–1

For VIN ↓ and VOUT(NOM) < 1.1 V:

VIN = 2.2 V to 1.6 V

VIN tfall = 30 µs

Load transients(9)

IOUT = 5 mA to 500 mA

IOUT trise = 10 µs

–45

mV

IOUT = 500 mA to 5 mA

IOUT tfall = 10 µs

45

Overshoot on start-up(9)

Stated as a percentage of VOUT(NOM)

5%

tON

Turnon time

From VEN > VEN(ON) to VOUT = 95% of VOUT(NOM)

200

µs

OUTPUT AUTO DISCHARGE RATE

RAD

Output discharge pulldown

resistance

VEN = 0 V, VIN = 3.6 V

100

Ω

(1)

The minimum capacitance must be greater than 0.5 μF over full range of operating conditions. The capacitor tolerance must be 30% or

better over the full temperature range. The full range of operating conditions for the capacitor in the application must be considered

during device selection to ensure this minimum capacitance specification is met. X7R capacitors are recommended however capacitor

types X5R, Y5V, and Z5U may be used with consideration of the application conditions.

(2)

This specification is verified by design.

7.6 Output and Input Capacitors

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN(1)

TYP

MAX

UNIT

CIN

Input capacitance(2)

Capacitance for stability

0.7

1

µF

COUT

Output capacitance(2)

0.7

1

10

µF

ESR

Output voltage(2)

5

500

mΩ

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