ADP3020 Просмотр технического описания (PDF) - Analog Devices
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ADP3020 Datasheet PDF : 22 Pages
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ADP3020–SPECIFICATIONS (@ TA = –40؇C to +85؇C, VIN = 12 V, SS5 = SS3 = INTVCC, INTVCC Load = 0 mA,
REF Load = 0 mA, MODE = 0 V, SYNC = 0 V, SD = 5 V, unless otherwise noted.)
Parameter
Symbol Conditions
Min Typ Max Unit
INTERNAL 5 V REGULATOR
Input Voltage Range
5 V Voltage
Line Regulation
Total Variation
Switchover Voltage
Switchover Hysteresis
Undervoltage Lockout
Threshold Voltage
Undervoltage Lockout
Hysteresis
INTVCC
TA = 25°C
5.5 V ≤ VIN ≤ 25 V
Line, Temp
AUXVCC from Low to High
AUXVCC from High to Low
INTVCC Falling
5.5
25
4.95 5.025 5.15
0.3
4.8
5.2
4.65 4.75 4.85
100
3.6 3.8 4.2
120
V
V
mV/V
V
V
mV
V
mV
REFERENCE
Output Voltage2
REF
5.5 V ≤ VIN ≤ 25 V
1.185 1.197 1.209 V
SUPPLY CURRENT
Shutdown Current
Standby Current
Quiescent Current
(PWM Mode)
Quiescent Current
(Power-Saving Mode)
IQ
SD = 0 V
SS3 = SS5 = SD2 = 0 V
SD = 5 V
No Loads, MODE = 5 V
SS3 = SS5 = SD2 = 5 V
FB5 = FB3 = FB2 = 1.25 V,
ADJ/FX5 = ADJ/FX3 = 5 V
No Loads, MODE = 0 V
SS3 = SS5 = SD2 = 5 V
FB5 = FB3 = FB2 = 1.25 V,
ADJ/FX5 = ADJ/FX3 = 5 V
7
15
µA
250 400
µA
0.95 1.8
mA
650
µA
OSCILLATOR
Frequency
SYNC Input
Frequency Range
Input Low Voltage3
Input High Voltage3
Input Current
fOSC
SYNC = AGND
SYNC = REF
SYNC = INTVCC
tF ≤ 200 ns
tR ≤ 200 ns
SYNC = REF
176 200 224
kHz
264 300 336
kHz
352 400 448
kHz
230
600
kHz
0.4
V
4.6
V
1.2
µA
POWER GOOD
Output Voltage In Regulation
Output Voltage Out of Regulation
PWRGD Trip Threshold
PWRGD Hysteresis
CPOR Pull-Up Current
PWRGD
10 kΩ Pull-Up to 5 V
10 kΩ Pull-Up to 5 V
FB5 < 90% of Nominal
Output Value
FB5 Rising
FB5 Falling
CPOR = 1.2 V
4.8
V
0.4
V
–8
–4
–2
%
4
%
2.5
µA
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Input Leakage Current
MAIN SMPS CONTROLLERS
Fixed 5 V Output Voltage
PWM Mode
Power-Saving Mode
Fixed 3.3 V Output Voltage
PWM Mode
Power-Saving Mode
GBW
IEAN
FB5
FB3
ADJ/FX5 = ADJ/FX3 = 5 V
67
dB
10
MHz
200
nA
5.5 V ≤ VIN ≤ 25 V, ADJ/FX5 = 0 V 4.90 5.0
5.10
V
5.5 V ≤ VIN ≤ 25 V, ADJ/FX5 = 0 V 4.925 5.025 5.125 V
5.5 V ≤ VIN ≤ 25 V, ADJ/FX3 = 0 V 3.234 3.3 3.366 V
5.5 V ≤ VIN ≤ 25 V, ADJ/FX3 = 0 V 3.250 3.316 3.382 V
–2–
REV. 0
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