 2002-2013 Microchip Technology Inc.

DS21752B-page 3

MCP1252/3

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Output Short Circuit Duration ................................continuous

Storage Temperature Range .........................-65°C to +150°C

Ambient Temperature with Power Applied ....-55°C to +125°C

Junction Temperature ................................................. +150°C

ESD Ratings:

Human Body Model (1.5 k

 in Series with 100 pF 4kV

Machine Body Model (200 pF, No Series Resistance

400V

†Notice: Stresses above those listed under “Maximum Rat-

ings” may cause permanent damage to the device. This is a

stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operational listings of this specification is not implied. Expo-

sure to maximum rating conditions for extended periods may

affect device reliability.

PIN FUNCTION TABLE

ELECTRICAL CHARACTERISTICS

Name

Function

PGOOD

Open-Drain Power GOOD Output

Regulated Output Voltage

Power Supply Input

GND

Ground Terminal

C-

Flying Capacitor Negative Terminal

C+

Flying Capacitor Positive Terminal

SHDN

Shutdown Mode, Active-Low Input

SELECT

Output Voltage Select Pin.

(MCP1252-33X50, MCP1253-33X50)

FB

Feedback Input Pin for Adjustable Output

(MCP1252-ADJ, MCP1253-ADJ)

Parameters

Sym

Min

Typ

Max

Units

Conditions

Supply Voltage

2.1

—

5.5

V

Output Voltage Accuracy

-2.5

+/-0.5

+2.5

%

2.3V

 V

2.5V

V

Output Current

80

120

100

150

—mA

mA

2.3V

 V

2.5V

 V

SELECT Logic Input Voltage High

1.4

—

—

V

MCP1252-33X50, MCP1253-33X50

Supply Voltage

2.7

—

5.5

V

Output Voltage Accuracy

-2.5

+/-0.5

+2.5

%

2.7V

V

3.0V

V

Output Current

40

120

80

150

—mA

mA

2.7V

 V

3.0V

 V

SELECT Logic Input Voltage Low

—

—

0.4

V

MCP1252-33X50, MCP1253-33X50

Adjustable Output - MCP1252-ADJ, MCP1253-ADJ

Supply Voltage

2.0

—

5.5

V

Output Voltage Adjustment Range

1.5

—

5.5

V

FB Regulation Voltage

1.18

1.21

1.24

V

MCP1252-ADJ, MCP1253-ADJ

ALL DEVICES

Supply Current

—

60

120

µA

No load

Output Short-Circuit Current

—

200

—

mA

Shutdown Current

—

0.1

2.0

µA

SHDN = 0V

Power Efficiency



—81

68

—%

%

SHDN Logic Input Voltage Low

——

0.4

V

SHDN Logic Input Voltage High

1.4

—

—

V

PGOOD Threshold Voltage

—

—V

PGOOD Hysteresis

—

—V