SS6550 datasheet(3/13 Pages) SSC

3 / 13 page

www.SiliconStandard.com

3 of 13

SS6550

n ELECTRICAL CHARACTERISTICS (V

IN=+3.6V, TA=+25

°C, SYNC/MODE =GND,

SHDN

=IN, unless otherwise specified.)

PARAMETER

SYMBOL CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage Range

VIN

2.5

5.5

Output Adjustment Range

VOUT

(Note 1)

VREF

VIN

Feedback Voltage

VFB

0.735

0.75

0.765

Line Regulation

Duty Cycle = 100% to 23%

Load Regulation

IOUT = 0 to 800mA

-1.3

%/A

FB Input Current

IFB

VFB = 1.4V,

-50

0.01

VIN = 3.6V

0.32

0.65

P-channel On-Resistance

PRDS(ON) ILX = 100mA

VIN = 2.5V

0.38

Ω

VIN = 3.6V

0.32

0.65

N-channel On-Resistance

NRDS(ON) ILX = 100mA

VIN = 2.5V

0.38

Ω

P-channel Current-Limit

Threshold

0.85

1.2

1.55

Quiescent Current

SYNC/MODE = GND,

VFB = 1.4V, LX unconnected

µA

Shutdown Supply Current

SHDN

= LX = GND, includes LX

leakage current

0.1

µA

LX Leakage Current

VIN = 5.5V, VLX = 0 or 5.5V

-20

0.1

µA

Oscillator Frequency

fOSC

400

500

600

KHz

SYNC Capture Range

500

1000

KHz

Maximum Duty Cycle

dutyMAX

100

Undervoltage Lockout

Threshold

UVLO

VIN rising, typical hysteresis is

85mV

2.0

2.2

2.4

Logic Input High

VIH

SHDN

, SYNC/MODE, LIM

Logic Input Low

VIL

SHDN

, SYNC/MODE, LIM

0.4

Logic Input Current

SHDN

, SYNC/MODE, LIM

-1

0.1

µA

SYNC/MODE Minimum

Pulse Width

High or low

500

Note 1:

Specifications to -40°C are guaranteed by design, not production tested.

Rev.2.01 6/06/2003

SS6550 bảng dữ liệu(PDF) 3 Page - Silicon Standard Corp.

SS6550 bảng dữ liệu(HTML) 3 Page - Silicon Standard Corp.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13

bảng dữ liệu tải về

Link URL