MCP1804T-3002IDB datasheet(5/38 Pages) MICROCHIP

Part #	MCP1804T-3002IDB

Description	150 mA, 28V LDO Regulator With Shutdown

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Manufacturer	MICROCHIP [Microchip Technology]

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5 / 38 page

DS22200B-page 5

MCP1804

TEMPERATURE SPECIFICATIONS

Power Supply Ripple

Rejection Ratio

PSRR

—

50

—

dB

f = 1 kHz, IL = 20 mA,

VINAC = 0.5V pk-pk, CIN = 0 µF

Thermal Shutdown

Protection

TSD

—

150

—

°C

TJ

Thermal Shutdown

Hysteresis

ΔTSD

—

25

—

°C

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise specified, all limits are established for VIN = VR + 2.0V, Note 1,

COUT = 1 µF (X7R), CIN = 1 µF (X7R), VSHDN = VIN, TA = +25°C

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note 1:

The minimum VIN must meet one condition: VIN ≥ (VR + 2.0V).

2:

VR is the nominal regulator output voltage with an input voltage of VIN = VR + 2.0V.

For example: VR = 1.8V, 2.5V, 3.0V, 3.3V, etc.

3:

TCVOUT = (VOUT-HIGH - VOUT-LOW) *10

6 / (V

R * ΔTemperature), VOUT-HIGH = highest voltage measured

over the temperature range. VOUT-LOW = lowest voltage measured over the temperature range.

4:

Load regulation is measured at a constant junction temperature using low duty cycle pulse testing.

Changes in output voltage due to heating effects are determined using thermal regulation specification

TCVOUT.

5:

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

measured value with an applied input voltage of VR + 2.0V.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Operating Temperature Range

TA

-40

+85

°C

Storage Temperature Range

Tstg

-55

+125

°C

Thermal Package Resistance

Thermal Resistance, 5LD SOT-23

θ

JA

θ

JC

—

256

81

—

°C/W

EIA/JEDEC JESD51-7

FR-4 0.063 4-Layer Board

Thermal Resistance, 3LD SOT-89

Thermal Resistance, 5LD SOT-89

θ

JA

θ

JC

—

180

100

—

°C/W

EIA/JEDEC JESD51-7

FR-4 0.063 4-Layer Board

Thermal Resistance, 3LD SOT-223

θ

JA

θ

JC

—

62

15

—

°C/W

EIA/JEDEC JESD51-7

FR-4 0.063 4-Layer Board

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