LP38512

SNOSAU7F – NOVEMBER 2007 – REVISED APRIL 2013

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Electrical Characteristics (continued)

Unless otherwise specified: VIN = 2.5V, IOUT = 10 mA, CIN = 10 µF, COUT = 10 µF, VEN = VIN. Limits in standard type are for TJ

= 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and

Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most likely

parametric norm at TJ = 25°C, and are provided for reference purposes only.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VOUT rising threshold where ERROR

78

90

98

Flag goes high

VTH

Error Flag Threshold(5)

%

VOUT falling threshold where

74

85

93

ERROR Flag goes low

VERROR(SAT)

ERROR Flag Saturation Voltage ISINK = 100 µA

-

12.5

45

mV

ERROR Flag Pin Leakage

Ilk

VERROR = 5.5V

-

1

-

nA

Current

td

ERROR Flag Delay time

-

1

-

µs

AC Parameters

VIN = 2.5V

-

73

-

f = 120Hz

PSRR

Ripple Rejection

dB

VIN = 2.5V

-

73

-

f = 1 kHz

Output Noise Density

f = 120Hz

-

2

-

nV/

√Hz

en

Output Noise Voltage

BW = 100Hz – 100kHz

-

75

-

µV (RMS)

Thermal Characteristics

TSD

Thermal Shutdown

TJ rising

-

165

-

°C

ΔTSD

Thermal Shutdown Hysteresis

TJ falling from TSD

-

10

-

Thermal Resistance

θJ-A

DDPAK/TO-263 and PFM

-

60

-

°C/W

Junction to Ambient(6)

Thermal Resistance

θJ-C

DDPAK/TO-263 and PFM

-

3

-

°C/W

Junction to Case

(5)

The ERROR Flag thresholds are specified as percentage of the nominal regulated output voltage. See Application Information.

(6)

Device operation must be evaluated, and derated as needed, based on ambient temperature (TA), power dissipation (PD), maximum

allowable operating junction temperature (TJ(MAX)), and package thermal resistance (θJA).

4

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