SC187

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Oscillator Frequency

f

OSC

1.8

2.2

2.6

MHz

I

SS

+5

µA

Foldback Holding Current

I

CL_HOLD

Average LX Current

1

A

Impedence of PGOOD Low

R

PGOOD_LO

10

Ω

PGOOD Threshold

V

PG_TH

VOUT rising

90

%

PGOOD Delay

V

PG_DLY

Asserted

2

ms

PGOOD= Low

20

µs

CTL

t

EN_DLY

From CTL

50

µs

CTL

(2)

I

CTLx

CTL

-2.0

2.0

µA

CTL

V

CTLx_HI

1.2

V

CTL

V

CTLX_LO

0.4

V

V

V

OVP

110

115

120

%

Thermal Shutdown Temperature

T

SD

160

°C

Thermal Shutdown Hysteresis

T

SD_HYS

10

°C

Notes:

(1) The “Output Voltage Tolerance” includes output voltage accuracy, voltage drift over temperature and the line regulation.

(2) A negative current means the current flows into the pin and a positive current means the current flows out from the pin.

Electrical Characteristics (continued)

4