MCP1804_13 datasheet(4/36 Pages) MICROCHIP

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MCP1804

DS20002200D-page 4

 2009-2013 Microchip Technology Inc.

Line Regulation

VOUT/(VOUT-

VIN)

—(VR +2V)  VIN  28V, Note 1

—

0.05

0.10

%/V

IOUT =5 mA

—

0.15

0.30

%/V

IOUT =13 mA

Load Regulation

VOUT/VOUT

—IL = 1.0 mA to 50 mA, Note 4

—50

1.8V

 VOUT  5.0V

—

110

175

5.1V

 VOUT  12.0V

—

180

275

12.1V

 VOUT  18.0V

Dropout Voltage

Note 1, Note 5

VDROPOUT

—IL =20 mA

—

550

710

1.8V

 VR  1.9V

—

450

600

2.0V

 VR  2.1V

—

390

520

2.2V

 VR  2.4V

—

310

450

2.5V

 VR  2.9V

—

260

360

3.0V

 VR  3.9V

—

220

320

4.0V

 VR  4.9V

—

190

280

5.0V

 VR  6.4V

—

170

230

6.5V

 VR  8.0V

—

130

190

8.1V

 VR  10.0V

—

120

170

10.1V

 VR  18.0V

—IL =100 mA

—

2200

2700

1.8V

 VR  1.9V

—

1900

2600

2.0V

 VR  2.1V

—

1700

2200

2.2V

 VR  2.4V

—

1500

1900

2.5V

 VR  2.9V

—

1300

1700

3.0V

 VR  3.9V

—

1100

1500

4.0V

 VR  4.9V

—

1000

1300

5.0V

 VR  6.4V

—

800

1150

6.5V

 VR  8.0V

—

700

950

8.1V

 VR  10.0V

—

650

850

10.1V

 VR  18.0V

SHDN “H” Voltage

VSHDN_H

1.1

—

VIN

VVIN = 28V

SHDN “L” Voltage

VSHDN_L

0—

0.35

VIN =28V

SHDN Current

ISHDN

-0.1

—

0.1

µA

VIN =28V, VSHDN = GND or

VIN

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).

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.

TCVOUT =(VOUT-HIGH -VOUT-LOW)*106 / (VR * Temperature), VOUT-HIGH = highest voltage measured

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

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.

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.

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