MIC5203-4.5BM5 datasheet(4/10 Pages) MICREL

Part #	MIC5203-4.5BM5

Description	關Cap 80mA Low-Dropout Regulator

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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Micrel, Inc.

MIC5203

November 2009

4

M9999-111909

Absolute Maximum Ratings(1)

Supply Voltage (VIN)....................................... –20V to +20V

Enable Input Voltage (VEN)............................. –20V to +20V

Power Dissipation (PD)..............................Internally Limited

Storage Temperature (Ts).........................–60°C to +150°C

Lead Temperature (soldering, #sec.)......................... 260°C

Operating Ratings(2)

Input Voltage (VIN)............................................. 2.5V to 16V

Enable Input Voltage (VEN)..................................... 0V to VIN

Junction Temperature Range ................... –40°C to +125°C

Thermal Resistance (

θJA) ...........................................Note 3

Electrical Characteristics

VIN = VOUT + 1V; IL = 1mA; CL = 0.47μF; VEN ≥ 2.0V; TJ = 25°C, bold values indicate –40°C≤ TJ ≤ +125°C, unless noted.

Symbol

Parameter

Condition

Min

Typ

Max

Units

–3

3

VO

Output voltage accuracy

–4

4

%

∆VO/∆T

Output voltage temperature

coefficient

Note 4

50

200

pm/°C

0.008

0.3

∆VO/VO

Line regulation

VIN = VOUT + 1V to 16V

0.5

%

0.08

0.3

∆VO/VO

Load regulation

IL = 0.1mA to 80mA

(5)

0.5

%

IL = 100 μA

20

IL = 20mA

200

350

IL = 50mA

250

∆VO – VO

Dropout voltage

(6)

IL = 80mA

300

600

mV

IQ

Quiescent current

VEN ≤ 0.4V (shutdown)

0.01

10

μA

IL = 100 μA, VEN ≥ 2.0V (active)

180

IL = 20mA, VEN ≥ 2.0V (active)

225

750

IL = 50mA, VEN ≥ 2.0V (active)

850

IGND

Ground pin current

(7)

IL = 80mA, VEN ≥ 2.0V (active)

1800

3000

μA

IGNDDO

Ground pin current at dropout

VIN = VOUT(nominal) – 0.5V

(7)

200

300

μA

ILIMIT

Current limit

VOUT = 0V

180

250

mA

∆VO/∆PD

Thermal regulation

Note 8

0.05

%/W

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