RT9005A Datasheet, PDF (4/10 Pages) Richtek Technology Corporation – DDR VDDQ and Termination Voltage Regulator

RT9005A/B
Preliminary
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, V_IN -------------------------------------------------------------------------------------------- 6V
z Power Dissipation, P_D @ T_A = 25°C
SOP-8 (Exposed) ----------------------------------------------------------------------------------------------------- 1.33W
z Package Thermal Resistance (Note 4)
SOP-8 (Exposed), θ_JA ------------------------------------------------------------------------------------------------ 75°C/W
SOP-8 (Exposed), θ_JC ----------------------------------------------------------------------------------------------- 28°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10sec.) ---------------------------------------------------------------------------- 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 Supply Input Voltage, V_IN1 ------------------------------------------------------------------------------------------ 5V to 2.5V
z Supply Input Voltage, V_IN2 ------------------------------------------------------------------------------------------ 3.6V to 1.5V
z Control Voltage, V_CNTL ----------------------------------------------------------------------------------------------- 5V to 3.1V
z Junction Temperature Range ---------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range ---------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN1 =3.3V , VIN1 = VOUT + 1V, CIN1 = COUT1 = 2.2μF (Ceramic) & CBP = 10nF; VIN2 = 2.5V/1.8/1.5V, VCNTL = 3.3V, VREFEN = 1.25V/
0.9/0.75V, CIN2 = 470μF, CVCNTL= 47μF, COUT2 = 1000μF(Electrolytic), TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Input
Operation Current
I_VCNTL I_OUT = 0A
-- 1.5 3.0 mA
Standby Current (Note 5)
VOUT1 (VDDQ)
I_STBY2
V_REFEN < 0.2V (Shutdown),
R_LOAD = 180Ω
-- 50 90 μA
VOUT1 Accuracy
VOUT1 Current Limit
VOUT1 Dropout Voltage
(Note 6)
ΔV_OUT
I_LIM1
V_DROP
I_OUT = 10mA
R_LOAD = 0.5Ω, V_IN1 = 3.3V
I_OUT = 0.5A
I_OUT = 1.0A
−2 -- +2 V
2 2.8 3
A
-- 120 180
mV
-- 240 360
Line Regulation
Load Regulation (Note 7)
VOUT2 (VTT)
ΔV_LINE
ΔV_LOAD
V_IN1 = (V_OUT1 + 0.5V) to 5.5V
I_OUT1 = 1mA
V_IN1 = (V_OUT1 + 0.5V)
10mA < I_OUT1 < 1A
--
-- 0.3 %
-- 0.4 -- %/A
Output Offset Voltage (Note 8) V_OS
I_OUT = 0A
−20 -- +20 mV
To be continued
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DS9005A/B-01 September 2007