NCP3233

www.onsemi.com

10

+25

°C for typical values)

Parameter

Unit

Max

Typ

Min

Test Conditions

Symbol

CURRENT LIMIT

LS OCP Blanking time

LS_Tblnk

150

ns

PWM

Maximum duty cycle

Guaranteed by characterization

88

86

67

92

88

85

%

Minimum duty cycle

VCOMP < PWM Ramp Offset Voltage

0

%

Minimum GH on−time

Guaranteed by characterization

50

65

ns

PWM Ramp Amplitude

V

PWM Ramp Offset

0.63

V

OSCILLATOR

Oscillator Frequency Range

450

500

550

kHz

Hiccup Time Duration

4

ms

ENABLE INPUT (EN)

EN Input Operating Range

5.5

V

Enable Threshold Voltage

VEN rising

1.13

1.2

1.27

V

Enable Hysteresis

VEN falling

Guaranteed by characterization

60

140

210

mV

Deep Disable Threshold

0.8

1.1

V

Enable Pull−up Current

2

mA

SOFTSTART INPUT (SS)

SS Start Delay

2.3

2.6

3.0

ms

SS End Threshold

SSEND

0.6

V

SS Source Current

2.15

2.5

2.8

mA

VOLTAGE MONITOR

Power Good Sink Current

PG = 0.15 V

9

12

17

mA

Output Overvoltage Rising

725

750

775

mV

Overvoltage Fault Blanking Time

5

ms

Output Under−Voltage Trip

Threshold

500

525

550

mV

Under−voltage Protection Blanking

Time

20

ms

UVP Enable Delay

s

POWER STAGE

High−side on Resistance

−40

2.8

4.8

6.7

m

W

Low−side on Resistance

−40

0.9

2.0

3.9

m

W

VFBOOT

IBOOT = 2 mA

0.2

V

THERMAL SHUTDOWN

Thermal Shutdown Threshold

150

°C

Thermal Shutdown Hysteresis

25

°C

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.