LP38692MP-ADJSLASHNOPB datasheet(5/27 Pages) TI1

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LP38690-ADJ, LP38692-ADJ

www.ti.com

SNVS323I – DECEMBER 2004 – REVISED FEBRUARY 2016

Product Folder Links: LP38690-ADJ LP38692-ADJ

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(1)

Typical numbers represent the most likely parametric norm for 25°C operation.

(2)

Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.

(3)

Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from 1 mA to

full load.

(4)

Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100 mV of nominal value.

6.5 Electrical Characteristics

Unless otherwise specified: typical limits are for TJ = 25°C, minimum and maximum limits apply over the full operating

temperature range; VIN = VOUT + 1 V , CIN = COUT = 10 µF, ILOAD = 10 mA. Minimum and maximum limits are specified through

testing, statistical correlation, or design.

PARAMETER

TEST CONDITIONS

MIN

TYP(1)

MAX

UNIT

VADJ

ADJ pin voltage

VIN = 2.7 V, TJ = 25°C

1.219

1.25

1.281

3.2 V

≤ VIN ≤ 10 V

100 µA < ILOAD < 1 A

1.187

1.25

1.313

ΔVOUT/ΔVIN

Output voltage line regulation(2)

VOUT + 0.5 V ≤ VIN ≤ 10 V

ILOAD = 25 mA

0.03

0.1

%/V

ΔVOUT/ΔILOAD

Output voltage load regulation(3)

1 mA < ILOAD < 1 A

VIN = VOUT + 1 V

1.8

%/A

VIN – VOUT

Dropout voltage(4)

VOUT = 1.8 V, ILOAD = 1 A

950

1600

VOUT = 2.5 V, ILOAD = 0.1 A

145

VOUT = 2.5 V, ILOAD = 1A

800

1300

VOUT = 3.3 V, ILOAD = 0.1 A

110

VOUT = 3.3 V, ILOAD = 1 A

650

1000

VOUT = 5 V, ILOAD = 0.1 A

100

VOUT = 5 V, ILOAD = 1 A

450

800

Quiescent current

VIN ≤ 10 V, ILOAD = 100 µA – 1A

100

µA

VEN ≤ 0.4 V, TJ = 25°C

(LP38692-ADJ Only)

0.001

IL(MIN)

Minimum load current

VIN – VOUT ≤ 4 V

100

µA

IFB

Foldback current limit

VIN – VOUT > 5 V

450

VIN – VOUT < 4 V

1500

PSRR

Ripple rejection

VIN = VOUT + 2 V(DC), with 1 V(p-p) /

120-Hz ripple

TSD

Thermal shutdown activation

(junction temperature)

160

°C

TSD (HYST)

Thermal shutdown hysteresis

(junction temperature)

°C

IADJ

ADJ input leakage current

VADJ = 0 –1.5 V

VIN = 10 V, TJ = 25°C

–100

0.01

100

Output noise

BW = 10 Hz to 10 kHz

VOUT = 3.3 V

0.7

µV/

√Hz

VOUT (LEAK)

Output leakage current

VOUT = VOUT(NOM) + 1 V at 10 VIN

TJ = 25°C

0.5

µA

VEN

Enable voltage (LP38692-ADJ

Only)

Output = OFF

0.4

Output = ON, VIN = 4 V

1.8

Output = ON, VIN = 6 V

Output = ON, VIN = 10 V

IEN

Enable pin leakage (LP38692-

ADJ Only)

VEN = 0 V or 10 V , VIN = 10 V

TJ = 25°C

–1

0.001

µA

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