RT9703CS datasheet(4/14 Pages) RICHTEK

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RT9703

Preliminary

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

(VIN = 5V, CIN = COUT = 1

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

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

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

−0.3V to 6.5V

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

Power Dissipation, PD @ TA = 25°C

SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.95W

Package Thermal Resistance

SOP-8,

θJA -------------------------------------------------------------------------------------------------------------- 104°C/W

Junction Temperature ------------------------------------------------------------------------------------------------ 125°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

Absolute Maximum Ratings (Note 1)

Parameter

Symbol

Test Conditions

Min

Typ

Max Units

Switch On Resistance

RDS(ON)

IOUT = 3A (Note 8)

100

Ω

ISW_ON

Switch On, VOUT = Open

Supply Current

ISW_OFF

Switch Off, VOUT = Open

0.1

µA

Logic-Low Voltage VIL

Switch Off

0.8

CE Threshold

(Note 7)

Logic-High Voltage VIH

Switch On

2.0

CE Input Current

ICE

VCE = 0V to 5.5V

µA

Output Leakage Current

ILEAKAGE

VCE = 0V, RLOAD = 0

Ω

0.5

µA

Output Turn-On Rise Time

TON_RISE 10% to 90% of VOUT rising

1.5

Current Limit Factor (Note 5)

ILIM x RSET

180k

Ω

Max. Current Limit Setting (Note 6) ILIMSET

VIN = 3.3V to 5.5V, RSET = 51.4k

Ω

3.5

Current Limit Setting Accuracy

∆ILIMSET

ILIMSET = 0.5A to 3A

(RSET = 360k

Ω to 60kΩ)

−20

+20

FLAG Output Resistance

RFLG

ISINK = 1mA

400

Ω

FLAG Off Current

IFLG_OFF VFLG = 5V

0.01

µA

FLAG Delay Time (Note 4)

Form fault condition to FLG assertion

4.6

Under-Voltage Lockout

VUVLO

VIN increasing

1.3

1.7

Under-Voltage Hysteresis

∆VUVLO

VIN decreasing

0.1

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