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SS6612

High-Efficiency Synchronous Step-up DC/DC Converter with Selectable Current Limit

Silicon Standard Corp. 

SS6612

ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

LX Switch On-Time

LX Switch Off-Time

FB Input Current

LBI Input Current

CLSEL Input Current

SHDN Input Current

LBO Low Output Voltage

LBO Off Leakage Current

LBI Hystereisis

Damping Switch Resistance

SHDN Input Voltage

CLSEL Input Voltage

TEST CONDITIONS

VFB =1V , VOUT = 3.3V

VFB =1V , VOUT = 3.3V

VFB = 1.4V

VLBI = 1.4V

CLSEL = OUT

V SHDN = 0 or VOUT

VLBI = 0, ISINK = 1mA

VLBO = 5.5V, VLBI = 5.5V

VBATT = 2V

VIL

VIH

VIL

VIH

MIN. TYP. MAX. UNIT

2

4

7

µs

0.6

0.9

1.4

µs

0.03

50

nA

1

50

nA

1.4

3

µA

0.07

50

nA

0.2

0.4

µA

0.07

1

50

mV

50

100

Ω

0.8VOUT

0.2VOUT

V

0.8VOUT

0.2VOUT

V

Note 1: Start-up voltage operation is guaranteed without the addition of an external Schottky diode between the

input and output.

Note 2: Steady-state output current indicates that the device maintains output voltage regulation under load.

Note 3: Device is bootstrapped (power to the IC comes from OUT). This correlates directly with the actual bat-

tery supply.

Rev.2.02 12/06/2003

www.SiliconStandard.com

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