LP38798 datasheet(5/23 Pages) TI

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LP38798

www.ti.com

SNOSCT6A – MARCH 2013 – REVISED MAY 2013

ELECTRICAL CHARACTERISTICS (continued)

Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the operating junction temperature (TJ)

range of –40°C to +125°C. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for

reference purposes only. Minimum and Maximum limits are specified through test, design, or statistical correlation. Unless

otherwise stated the following conditions apply: VIN = 5.5 V, VSET = 5.0 V, CCP= 10 nF X7R, CIN = 10 μF 50 mΩ Tantalum,

COUT = 10 μF X7R MLCC, IOUT = 10 mA, and TJ = 25°C.

Symbol

Parameter

Conditions

Min

Typical

Max

Units

VIN = 3.0 V, VOUT = 1.2 V

COUT = 1 µF X7R

4.96

BW = 10 Hz to 100 kHz

VIN = 3.0 V, VOUT = 1.2 V

5.21

BW = 10 Hz to 100 kHz

VIN = 3.0 V, VOUT = 1.2 V

11.53

BW = 10 Hz to 10 MHz

Output Noise Voltage

µV(RMS)

(RMS)

VIN = 6.0 V, VOUT = 5.0 V

COUT = 1 µF X7R

5.38

BW = 10 Hz to 100 kHz

VIN = 6.0 V, VOUT = 5.0 V

5.43

BW = 10 Hz to 100 kHz

VIN = 6.0 V, VOUT = 5.0 V

11.58

BW = 10 Hz to 10 MHz

ENABLE INPUT

Enable ON Threshold

VEN rising from 500 mV until Output is

VEN(ON)

1.14

1.24

1.34

Voltage

Enable Threshold Voltage

ΔVEN

VEN Falling from VEN(ON)

110

Hysteresis

IEN(IL)

EN Pin Pull-up Current

VEN = 500 mV

3.0

µA

IEN(IH)

EN Pin Pull-up Current

VEN = 2.0 V

3.0

µA

Enable Pin Clamp

VEN(CLAMP)

EN pin = Open

5.0

Voltage

Thermal Shutdown

TSD

Thermal Shutdown

Junction Temperature (TJ) Rising

170

°C

Thermal Shutdown

Junction Temperature (TJ) Falling from

ΔTSD

Hysteresis

TSD

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