RT9045 Ver la hoja de datos (PDF) - Richtek Technology

Número de pieza

componentes Descripción

Fabricante

RT9045

Cost-Effective, 1.8A Sink/Source Bus Termination Regulator

Richtek Technology 

RT9045

Absolute Maximum Ratings (Note 1)

z Input Voltage, VIN ------------------------------------------------------------------------------------------------------------ −0.3V to 6V

z Control Voltage, VCNTL ----------------------------------------------------------------------------------------------------- −0.3V to 6V

z Reference Input Voltage, VREFEN ----------------------------------------------------------------------------------------- −0.3V to 6V

z Output Voltage, VOUT ------------------------------------------------------------------------------------------------------- −0.3V to 6V

z Power Dissipation, PD @ TA = 25°C

SOP-8 (Exposed Pad) ----------------------------------------------------------------------------------------------------- 1.163W

z Package Thermal Resistance (Note 2)

SOP-8 (Exposed Pad), θJA ------------------------------------------------------------------------------------------------ 86°C/W

SOP-8 (Exposed Pad), θJC ----------------------------------------------------------------------------------------------- 15°C/W

z Junction Temperature ------------------------------------------------------------------------------------------------------- 150°C

z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------------- 260°C

z Storage Temperature Range ---------------------------------------------------------------------------------------------- −65°C to 150°C

z ESD Susceptibility (Note 3)

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

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

Recommended Operating Conditions (Note 4)

z Input Voltage, VIN ------------------------------------------------------------------------------------------------------------ 1V to 5.5V

z Control Voltage, VCNTL ----------------------------------------------------------------------------------------------------- 5V ± 5%

z Junction Temperature Range ---------------------------------------------------------------------------------------------- −40°C to 125°C

z Ambient Temperature Range ---------------------------------------------------------------------------------------------- −40°C to 85°C

Electrical Characteristics

(VIN = 1.8V / 1.5V, VCNTL = 5V, VREFEN = 0.9V / 0.75V, COUT = 10μF (Ceramic), TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Input

VCNTL Operation Current ICNTL IOUT = 0A

-- 0.7 2.5 mA

VCNTL Power on Reset

VPOR VCNTL Rising

-- 3.6 -- V

Standby Current (Note 5) ISTBY VREFEN < 0.2V (Shutdown), RLOAD = 180Ω -- 20 90 μA

Output

Output Offset Voltage

(Note 6)

VOS

IOUT = 0A

−13 -- 13 mV

VIN = 1.8V, VREFEN = 0.9V, IOUT = ±1.8A

Load Regulation

(Note 7) ΔVLOAD

VIN = 1.5V, VREFEN = 0.75V, IOUT = ±1.5A

VIN = 1.35V, VREFEN = 0.675V, IOUT = ±1.2A

−13

--

13 mV

VIN = 1.2V, VREFEN = 0.6V, IOUT = ±1.2A

Protection

Source

Current Limit

Sink

ILIMITsr

ILIMITsk

VIN = 1.8V, VREFEN = 0.9V

VIN = 1.5V, VREFEN = 0.75V

VIN = 1.8V, VREFEN = 0.9V

VIN = 1.5V, VREFEN = 0.75V

1.8 -- 3.5 A

1.8 -- 3.5 A

DS9045-04 August 2011

To be continued

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