TC1188 datasheet(3/16 Pages) MICROCHIP

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 2002 Microchip Technology Inc.

DS21364B-page 3

TC1188/TC1189

Shutdown:

SHDN Input Threshold

2.0

—

——

0.4

SHDN Input Bias Current

Ishdn

—0.1

100

SHDN = VIN, TA = +25°C, TA = TMAX

—50

—

SHDN = VIN, TA = +25°C, TA = TMAX

Shutdown Supply Current

Iqshdn

—0.002

µAV

OUT = 0V, TA = +25°C, TA = TMAX

—0.02

—

µAV

OUT = 0V, TA = +25°C, TA = TMAX

Shutdown to Output Discharge

Delay (TC1189)

—1

—

msec

OUT = 1 µF, no load at 10% of VOUT

Thermal Protection

Thermal Shutdown Temperature

SHDN

—170

—

°C

Thermal Shutdown Hysteresis

∆T

SHDN

—20

—

°C

DC SPECIFICATIONS (CONTINUED)

Electrical Characteristics: V

IN = +3.6V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.

(Note 1)

Parameters

Symbol

Min

Typ

Max

Units

Conditions

Note 1: Limits are 100% production tested at T

A = +25°C. Limits over the operating temperature range are ensured through cor-

relation using Statistical Quality Control (SQC) methods.

2: Validated by line regulation test.

3: Not tested. For design purposes, the current limit should be considered 150 mA minimum to 410 mA maximum.

4: The dropout voltage is defined as (V

IN – VOUT) when VOUT is 100 mV below the value of VOUT for

IN = VOUT +2V.

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