 2005-2014 Microchip Technology Inc.

DS20001936D-page 5

MCP1726

Power Good Characteristics

Input Voltage Operating Range

for Valid PWRGD

1.0

—

6.0

V

1.2

—

6.0

PWRGD Threshold Voltage

PWRGD_THF

88

92

96

89

92

95

PWRGD_THR

89

94

98

90

93

96

PWRGD Output Voltage Low

—0.2

0.4

PWRGD Leakage

—0.1

—

µA

PWRGD Time Delay

—

200

—

µs

10

30

55

ms

—

300

—

ms

Detect Threshold to PWRGD

Active Time Delay

—

170

—

µs

Shutdown Input

Logic-High Input

45

——

Logic-Low Input

——

15

SHDN Input Leakage Current

-0.1

±0.001

+0.1

µA

SHDN =GND

AC Performance

Output Delay from SHDN

100

µs

Output Noise

—2.0

—

µV/

Power Supply Ripple Rejection

Ratio

PSRR

—

54

—

dB

Thermal Shutdown Temperature

—

150

—

°C

Thermal Shutdown Hysteresis

—10

—

°C

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications:

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Note

1:

2:

3:

4:

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

tested over a load range from 1 mA to the maximum specified output current.

5:

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

6:

The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction

dissipation will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained

junction temperatures above 125°C can impact device reliability.

7:

The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the

desired junction temperature. The test time is small enough such that the rise in the junction temperature over the

ambient temperature is not significant.