MCP1804T-A002I/DB【PDF 4/32 页】IC REG LDO 10V .15A SOT223-3

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MCP1804

ELECTRICAL CHARACTERISTICS (CONTINUED)

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

C OUT = 1 μF (X7R), C IN = 1 μF (X7R), V SHDN = V IN , T A = +25°C

Parameters

Dropout Voltage

Note 1 , Note 5

Sym

V DROPOUT

Min

—

—

—

—

—

—

—

—

—

—

Typ

550

450

390

310

260

220

190

170

130

120

Max

710

600

520

450

360

320

280

230

190

170

Units

mV

mV

mV

mV

mV

mV

mV

mV

mV

mV

Conditions

I L = 20 mA

1.8V ≤ V R ≤ 1.9V

2.0V ≤ V R ≤ 2.1V

2.2V ≤ V R ≤ 2.4V

2.5V ≤ V R ≤ 2.9V

3.0V ≤ V R ≤ 3.9V

4.0V ≤ V R ≤ 4.9V

5.0V ≤ V R ≤ 6.4V

6.5V ≤ V R ≤ 8.0V

8.1V ≤ V R ≤ 10.0V

10.1V ≤ V R ≤ 18.0V

I L = 100 mA

—

—

—

—

—

—

—

—

—

—

2200

1900

1700

1500

1300

1100

1000

800

700

650

2700

2600

2200

1900

1700

1500

1300

1150

950

850

mV

mV

mV

mV

mV

mV

mV

mV

mV

mV

1.8V ≤ V R ≤ 1.9V

2.0V ≤ V R ≤ 2.1V

2.2V ≤ V R ≤ 2.4V

2.5V ≤ V R ≤ 2.9V

3.0V ≤ V R ≤ 3.9V

4.0V ≤ V R ≤ 4.9V

5.0V ≤ V R ≤ 6.4V

6.5V ≤ V R ≤ 8.0V

8.1V ≤ V R ≤ 10.0V

10.1V ≤ V R ≤ 18.0V

SHDN “H” Voltage

SHDN “L” Voltage

SHDN Current

Power Supply Ripple

Rejection Ratio

Thermal Shutdown

Protection

Thermal Shutdown

V SHDN_H

V SHDN_L

I SHDN

PSRR

TSD

Δ TSD

1.1

0

-0.1

—

—

—

—

—

—

50

150

25

V IN

0.35

0.1

—

—

—

V

V

μA

dB

°C

°C

V IN = 28V

V IN = 28V

V IN = 28V, V SHDN = GND or V IN

f = 1 kHz, I L = 20 mA,

V INAC = 0.5V pk-pk, C IN = 0 μF

T J

Hysteresis

Note 1:

2:

3:

4:

5:

The minimum V IN must meet one condition: V IN ≥ (V R + 2.0V).

V R is the nominal regulator output voltage with an input voltage of V IN = V R + 2.0V.

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

TCV OUT = (V OUT-HIGH - V OUT-LOW ) *10 6 / (V R * Δ Temperature), V OUT-HIGH = highest voltage measured

over the temperature range. V OUT-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

TCV OUT .

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 V R + 2.0V.

DS22200C-page 4

? 2011 Microchip Technology Inc.

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