RT8036 datasheet(4/17 Pages) RICHTEK

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RT8036

DS8036-02 April 2011

www.richtek.com

Electrical Characteristics

To be continued

Recommended Operating Conditions

(Note 4)

Supply Voltage, VINB, VINL1, VINL2------------------------------------------------------------------------ 2.5V to 5.5V

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

−40°C to 125°C

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

−40°C to 85°C

Absolute Maximum Ratings

(Note 1)

Buck Supply Input Voltage, VINB -------------------------------------------------------------------------

−0.3V to 6.5V

ENB, VOUTB Voltage ---------------------------------------------------------------------------------------

−0.3V to VINB

LDO1, LDO2 Supply Input Voltage, VINL1, VINL2 ------------------------------------------------------

−0.3V to 6V

ENL1 to ENL4, VOUT1 to VOUT4 Voltage -------------------------------------------------------------

−0.3V to 6V

Power Dissipation, PD @ TA = 25

°C

WQFN

−20L 3x3 ----------------------------------------------------------------------------------------------- 1.471W

Package Thermal Resistance (Note 2)

WQFN

−20L 3x3, θJA ----------------------------------------------------------------------------------------- 68°C/W

WQFN

−20L 3x3, θJC----------------------------------------------------------------------------------------- 7.5°C/W

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

°C

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

°C

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

−65°C to 165°C

ESD Susceptibility (Note 3)

HBM (Human Body Mode) --------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ----------------------------------------------------------------------------------------- 200V

(VINB = 3.6V, VINLx = VOUTLx + 0.7V, VENLx = VINLx, CINB = 4.7

μF, COUTB = 10μF, CINLx = COUTLx = 1μF, L = 2.2μH, TA = 25°C,

unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Buck Converter

Input Voltage Range

VINB

2.5

5.5

Quiescent Current

IQB

IOUTB = 0mA,

μA

Shutdown Current

ISHDNB

ENB = GND

0.1

0.9

μA

Output Voltage Accuracy

ΔVOUTB

VINB = VOUTB + ΔV to 5.5V

VIN > 2.5V which ever is larger.

(Note 5)

−3

VOUTB Pin Input Current

IOUTB

VOUTB = VINB

−50

IOUTB = 200mA, VINB = 3.6V

0.1

0.28

0.6

RDS(ON) of P-MOSFET

RDS(ON)_P

IOUTB = 200mA, VINB = 2.5V

0.1

0.38

0.6

IOUTB = 200mA, VINB = 3.6V

0.1

0.25

0.55

R DS(ON) of N-MOSFET

RDS(ON)_N

IOUTB = 200mA, VINB = 2.5V

0.1

0.35

0.55

P-Channel Current Limit

ILIM_P

VINB = 2.5V to 5.5V

600

1800

2500

ENB High-Level Input

Voltage

VENB_H

VINB = 2.5V to 5.5V

1.5

VINB

ENB Low-Level Input

Voltage

VENB_L

VINB = 2.5V to 5.5V

0.4

Under Voltage Lock Out

UVLO

1.8

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