AQ533 Datasheet, PDF (4/10 Pages) Acutechnology Semiconductor – Ultra-Low Dropout 500mA Voltage Regulator

Acutechnology Semiconductor Inc.
AQ533
Electrical Specifications
Electrical characteristics are guaranteed over the full temperature range 0ºC <Tj< 125ºC. Ambient temperature
must be de-rated based upon power dissipation and package thermal characteristics. Unless otherwise
specified: VENABLE = VIN = (VOUT + 1.5V), IOUT = 10 mA, Tj = 25C. Values in bold are over the full temperature
range.
Symbol Parameter
Conditions
Min Typ Max Units
VOUT Output Voltage (1)
LNREG Line Regulation (1)
LDREG Load Regulation (1)
VD
Dropout Voltage (1, 2)
ISC Current Limit (1)
I_GND Ground Current ON
I_GND Ground Current ON (5)
VIL Enable Pin Voltage (OFF)
VIH Enable Pin Voltage (ON)
I_ENON Enable Current ON
VADJ Reference Voltage
IQMIN
TC
TS
Minimum Load Current (5)
Temperature Coefficient
Temperature Stability
0°C ≤Tj ≤ 125°C
∆VEN = VOUT + (1.5V to 10V)
∆IOUT = (10mA to 500 mA)
IOUT = 100 mA
IOUT = 250 mA
IOUT = 500 mA
VEN-VOUT = 2V
Adjustable version
With respect to GND
With respect to VOUT
IOUT = 10 mA
IOUT = 250 mA
IOUT = 500 mA
Adjustable version only
0°C ≤Tj ≤ 125°C
To maintain regulation
VN
RMS Output Noise (3)
PSRR Ripple Rejection Ratio (4) Vin = 5V
TSD Thermal Shutdown
Junction Temperature
TSDHYST TSD Hysteresis
Notes: (1) Low duty cycle pulse testing with Kelvin connections required.
(2) Measure (VIN - VOUT) when ∆VOUT, OR ∆VREF = 1%
(3) Bandwidth of 10Hz to 10kHz
(4) 120Hz input ripple
(5) Adjustable version only
-1 VOUT +1
%
-1.5 VOUT +1.5 %
0.035 0.2 %
0.2 0.4 %
50 80 mV
150 200 mV
300 350 mV
600 800
mA
100 150 µA
65 80 µA
0.25 0.45
V
0.92 0.95 V
0.3 0.5 mA
1.8 3.0 mA
3.8 5.0 mA
1.208 1.220 1.232 V
1.202
1.238 V
0.5 2.0 mA
0.005
%/°C
0.5
0.003
60 72
%/°C
%
VOUT
dB
150
°C
25
°C
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4
Rev. 1.7 September 13, 2006