RT9702PB datasheet(4/16 Pages) RICHTEK

4 / 16 page

RT9702/A

DS9702/A-11

June 2007

www.richtek.com

Absolute Maximum Ratings (Note 1)

Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V

Chip Enable Input Voltage -------------------------------------------------------------------------------------------

−0.3V to 6.5V

Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V

Power Dissipation, PD @ TA = 25

°C

SOT-23-5, TSOT-23-5 ------------------------------------------------------------------------------------------------- 0.4W

Package Thermal Resistance (Note 4)

SOT-23-5, TSOT-23-5,

θJA ------------------------------------------------------------------------------------------- 250°C/W

Junction Temperature ------------------------------------------------------------------------------------------------- 150

°C

Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260

°C

Storage Temperature Range ----------------------------------------------------------------------------------------

−65°C to 150°C

ESD Susceptibility (Note 2)

HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 8kV

MM (Machine Mode) -------------------------------------------------------------------------------------------------- 800V

Electrical Characteristics

Recommended Operating Conditions

(Note 3)

Supply Input Voltage -------------------------------------------------------------------------------------------------- 2V to 5.5V

Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0V to 5.5V

Junction Temperature Range ----------------------------------------------------------------------------------------

−20°C to 100°C

Ambient Temperature Range ----------------------------------------------------------------------------------------

−40°C to 85°C

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

RT9702

IOUT = 500mA

Switch On Resistance

RT9702A

RDS(ON)

IOUT = 1.1A

100

ISW_ON

switch on, VOUT = Open

Supply Current

ISW_OFF

switch off, VOUT = Open

0.1

μA

Logic-Low Voltage

VIL

VIN = 2V to 5.5V, switch off

0.8

EN Threshold

Logic-High Voltage VIH

VIN = 2V to 5.5V, switch on

2.0

EN Input Current

IEN

VEN = 0V to 5.5V

0.01

μA

Output Leakage Current

ILEAKAGE VEN = 0V, RLOAD = 0Ω

0.5

μA

Output Turn-On Rise Time

TON_RISE 10% to 90% of VOUT rising

400

μs

RT9702

0.5

0.8

1.1

Current Limit

RT9702A

ILIM

RLOAD = 1Ω

1.1

1.5

2.0

RT9702

0.8

Short Circuit Fold-

Back Current

RT9702A

ISC_FB

VOUT = 0V, measured prior to

thermal shutdown

1.0

FLAG Output Resistance

RFLG

ISINK = 1mA

400

FLAG Off Current

IFLG_OFF

VFLG = 5V

0.01

μA

FLAG Delay Time (Note 5)

From fault condition to FLG

assertion

(VIN = 5V, CIN = COUT = 1

μF, TA = 25°C, unless otherwise specified)

To be continued

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