RT9173D Ver la hoja de datos (PDF) - Richtek Technology

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componentes Descripción

Fabricante

RT9173D

Cost-Effective, Peak 3A Sink/Source Bus Termination Regulator

Richtek Technology 

RT9173D

Absolute Maximum Ratings (Note 1)

z Input Voltage, VIN ------------------------------------------------------------------------------------------------------ 6V

z Control Voltage, VCNTL ----------------------------------------------------------------------------------------------- 6V

z Power Dissipation, PD @ TA = 25°C

SOP-8 (Exposed Pad) ----------------------------------------------------------------------------------------------- 1.33W

z Package Thermal Resistance (Note 4)

SOP-8 (Exposed Pad), θJA ------------------------------------------------------------------------------------------ 75°C/W

SOP-8 (Exposed Pad), θJC ----------------------------------------------------------------------------------------- 28°C/W

z Junction Temperature ------------------------------------------------------------------------------------------------- 125°C

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

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

z ESD Susceptibility (Note 2)

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

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

Recommended Operating Conditions (Note 3)

z Input Voltage, VIN ------------------------------------------------------------------------------------------------------ 2.5V to 1.5V ± 3%

z Control Voltage, VCNTL ----------------------------------------------------------------------------------------------- 5V or 3.3V ± 5%

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

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

Electrical Characteristics

(VIN = 2.5V/1.8V/1.5V, VCNTL = 3.3V, VREFEN = 1.25V/0.9V/0.75V, COUT = 10μF (Ceramic), TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Units

Input

VCNTL Operation Current

ICNTL IOUT = 0A

--

1 2.5 mA

Standby Current (Note 7)

ISTBY

VREFEN < 0.2V (Shutdown),

RLOAD = 180Ω

-- 50 90 μA

Output (DDR / DDR II / DDR III)

Output Offset Voltage (Note 5) VOS

IOUT = 0A

−20 -- +20 mV

Load Regulation (Note 6)

Protection

ΔVLOAD IOUT = +2A

IOUT = −2A

−20 -- +20 mV

Current limit

ILIM

Thermal Shutdown Temperature TSD

VIN = 2.5V/1.8V/1.5V

3.3V ≤ VCNTL ≤ 5V

-- 3.4 -- A

125 170 -- °C

Thermal Shutdown Hysteresis

REFEN Shutdown

ΔTSD

3.3V ≤ VCNTL ≤ 5V

-- 35 -- °C

Shutdown Threshold

VIH

Enable

VIL

Shutdown

0.6 -- --

V

-- -- 0.2

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DS9173D-05 September 2007

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