© 2008 Microchip Technology Inc.

DS22063B-page 5

MCP1631/HV/MCP1631V/VHV

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Storage temperature .....................................-65°C to +150°C

Maximum Junction Temperature...................-40°C to +150°C

Operating Junction Temperature...................-40°C to +125°C

ESD Protection On All Pins:

HBM ................................................................................. 4 kV

MM ..................................................................................400V

† Notice: Stresses above those listed under "Maximum

Ratings" 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 sections of this specification is not intended.

Exposure to maximum rating conditions for extended periods

may affect device reliability.

DC CHARACTERISTICS

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input Characteristics

Input Voltage (MCP1631/V)

3.0

—

5.5

V

Non-HV Options

Input Voltage

(MCP1631HV/VHV)

3.5

—

16.0

V

HV Options (Note 2)

Undervoltage Lockout

(MCP1631/V)

UVLO

2.7

2.8

3.0

V

below UVLO threshold

Undervoltage Lockout Hysteresis

(MCP1631/MCP1631V)

40

64

100

mV

UVLO Hysteresis

Input Quiescent Current

(MCP1631/V, MCP1631HV,VHV)

3.7

5

mA

Shutdown Current

I_AVDD for MCP1631/V

I_VIN for MCP1631HV/VHV

—

2.4

4.4

12

17

µA

µA

Note: Amplifier A3 remains

powered during Shutdown.

Low Level Input Voltage

——

0.8

V

High Level Input Voltage

2.0

—

—

V

Input Leakage Current

0.005

1

µA

External Oscillator Range

—

—

2

MHz

Maximum operating frequency is

dependent upon circuit topology

and duty cycle.

Minimum Oscillator High Time

Minimum Oscillator Low Time

—10

—

ns

Oscillator Rise and Fall Time

0.01

—

10

µs

Note 1

Oscillator Input Capacitance

—5

—

pf

Note 1:

characterization testing. Signal levels between 0.8V and 2.0V with rise and fall times measured between 10% and 90%

of maximum and minimum values. Not production tested. Additional timing specifications were fully characterized and

specified that are not production tested.

2:

3:

4:

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

5:

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