Rev. P00

5

VUN12AD03-KM

ELECTRICAL SPECIFICATIONS: (Cont.)

The output ripple and transient response measurement is short loop probing and 20MegHz bandwidth limited.

VIN = 12V, VOUT = 5V, Cin =4.7uF/50V/1206/X7R x 2, Cout = 22uF/16V/1210/X7R x 2

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit



Input Characteristics

VIN under

voltage lockout

threshold

VIN rising

-

3.8

-

V

VIN under

voltage lockout

hysteresis

-

900

-

mV

Shutdown

Current

VEN=0V

-

1.3

-

uA

Quiescent

Current

VEN=2V, VFB = 0.82V, not

switching

-

37

-

uA

Quiescent

Current

VEN=2V, VOUT=5V, Load=0A,

switching, MODE=VCC (FPWM)

-

12

-

mA

Quiescent

Current

VEN=2V, VOUT=5V, Load=0A,

switching, MODE=GND (PSM)

-

70

-

uA



Output Characteristics

Feedback

Voltage

0.792

0.8

0.808

V

Switching

Frequency

RT=120kΩ

-

430

-

kHz

SS

Frequency

spread spectrum

Range

Connect SSP_EN pin to VCC

-

6

-

%

High side switch

current limit

RLIM=42.2kΩ

-

4.4

-

A

Minimum Duty

Cycle

VOUT/VIN

-

4

-

%

Power Good

VFB rising, PGOOD low to high

-

90

-

%

Power Good

VFB rising, PGOOD high to low

-

120

-

%

Power Good

VFB falling, PGOOD high to low

-

85

-

%

Power Good

VFB falling, PGOOD low to high

-

117

-

%