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ADP3000 데이터시트(PDF) 3 Page - Analog Devices

부품명 ADP3000
상세설명  Micropower Step-Up/Step-Down Fixed 3.3 V, 5 V, 12 V, Adjustable High Frequency Switching Regulator
PDF  16 Pages
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ADP3000 데이터시트(HTML) 3 Page - Analog Devices

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ADP3000
Rev. A | Page 3 of 16
SPECIFICATIONS
0°C ≤ TA ≤ +70°C, VIN = 3 V, unless otherwise noted.1
Table 1.
ADP3000
Parameter
Conditions
Symbol
Min
Typ
Max
Unit
INPUT VOLTAGE
Step-up mode
VIN
2.0
12.6
V
Step-down mode
30.0
V
SHUT-DOWN QUIESCENT CURRENT
VFB > 1.43 V; VSENSE > 1.1 × VOUT
IQ
500
µA
COMPARATOR TRIP POINT VOLTAGE
ADP30002
1.20
1.245
1.30
V
OUTPUT SENSE VOLTAGE
ADP3000-3.33
VOUT
3.135
3.3
3.465
V
ADP3000-53
4.75
5.00
5.25
V
ADP3000-123
11.40
12.00
12.60
V
COMPARATOR HYSTERESIS
ADP3000
8
12.5
mV
OUTPUT HYSTERESIS
ADP3000-3.3
32
50
mV
ADP3000-5
32
50
mV
ADP3000-12
75
120
mV
OSCILLATOR FREQUENCY
fOSC
350
400
450
kHz
DUTY CYCLE
VFB < VREF
D
65
80
%
SWITCH-ON TIME
ILIM tied to VIN, VFB= 0
tON
1.5
2
2.55
µs
SWITCH SATURATION VOLTAGE
TA = +25°C
VSAT
Step-Up Mode
VIN = 3.0 V, ISW = 650 mA
0.5
0.75
V
VIN = 5.0 V, ISW = 1 A
0.8
1.1
V
Step-Down Mode
VIN = 12 V, ISW = 650 mA
1.1
1.5
V
FEEDBACK PIN BIAS CURRENT
ADP3000 VFB = 0 V
IFB
160
330
nA
SET PIN BIAS CURRENT
VSET = VREF
ISET
200
400
nA
GAIN BLOCK OUTPUT LOW
ISINK = 300 µA, VSET = 1.00 V
VOL
0.15
0.4
V
REFERENCE LINE REGULATION
5 V
≤ VIN ≤ 30 V
0.02
0.15
%/V
2 V
≤ VIN ≤ 5 V
0.2
0.6
%/V
GAIN BLOCK GAIN
RL = 100 kΩ4
AV
1000
6000
V/V
GAIN BLOCK CURRENT SINK
VSET ≤ 1 V
ISINK
300
µA
CURRENT LIMIT
220 Ω from ILIM to VIN
ILIM
400
mA
CURRENT LIMIT TEMPERATURE COEFFICIENT
−0.3
%/°C
SWITCH-OFF LEAKAGE CURRENT
Measured at SW1 pin
1
10
µA
VSW1= 12 V, TA = +25°C
MAXIMUM EXCURSION BELOW GND
TA = +25°C
ISW1
≤ 10 µA, switch off
−400
−350
mV
1 All limits at temperature extremes are guaranteed via correlation using standard statistical methods.
2This specification guarantees that both the high and low trip points of the comparator fall within the 1.20 V to 1.30 V range.
3The output voltage waveform will exhibit a saw-tooth shape due to the comparator hysteresis. The output voltage on the fixed output versions will always be within
the specified range.
4100 kΩ resistor connected between a 5 V source and the AO pin.



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