MIC5271 datasheet(4/20 Pages) MICROCHIP

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MIC5271

DS20005881B-page 4



2017 - 2022 Microchip Technology Inc. and its subsidiaries

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: V–IN = V–OUT – 1.0V; COUT = 4.7 µF, IOUT = 100 µA; TJ = +25°C, bold values indicate

–40°C ≤ TJ ≤ +125°C; unless otherwise noted. Note 1

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

Output Voltage Accuracy

V–OUT

–2

—

Variation from nominal V–OUT.

–3

—

Output Voltage Temperature

Coefficient

ΔV–OUT/ΔT

—

100

—

ppm/°C Note 2

Line Regulation

ΔV–OUT/

V–OUT

—

0.04

0.15

%/V

V–IN = V–OUT – 1V to –16V

0.2

Load Regulation

ΔV–OUT/

V–OUT

—

0.4

1.8

IOUT = –100 µA to –100 mA,

Note 3

2.0

Dropout Voltage, Note 4

V–IN –

V–OUT

—

–55

—

IOUT = –100 µA

—

–360

–500

IOUT = –50 mA

—

–500

–700

IOUT = –100 mA

–900

Ground Current, Note 5

IGND

—

–25

–100

µA

IOUT = –100 µA

—

–0.9

—

IOUT = –50 mA

—

–2.0

–3.0

IOUT = –100 mA

Ground Current in Shutdown

IGND_SD

–1.0

0.1

1.0

µA

VEN = ±0.6V

Ripple Rejection

PSRR

—

f = 120 Hz

Current Limit

ILIMIT

—

235

350

V–OUT = 0V

Turn-On Time

tON

—

µs

Time to VOUT = 90% (nominal)

Input Low Voltage

VEN

—

±0.6

Regulator OFF

Input High Voltage

±2.0

—

Regulator ON

Enable Input Current

IEN

—

0.1

µA

VEN = ±0.6V and –2.0V

—

5.6

10.0

VEN = +2.0V

Note 1: Specification for packaged product only

2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total

temperature range.

3: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are

tested for load regulation in the load range from 100 µA to 100 mA. Changes in output voltage due to heat-

ing effects are covered by the thermal regulation specification.

4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its

nominal value measured at 1V differential.

5: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current

drawn from the supply is the sum of the load current plus the ground pin current.

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