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ADP3000-1997 View Datasheet(PDF) - Analog Devices

Part NameADP3000(1997) ADI
Analog Devices ADI
DescriptionMicropower Step-Up/Step-Down Fixed 3.3 V, 5 V, 12 V, Adjustable High Frequency Switching Regulator
ADP3000 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADP3000–SPECIFICATIONS (0؇C TA +70؇C, VIN = 3 V unless otherwise noted)*
Parameter
Conditions
ADP3000
Symbol Min Typ Max Units
INPUT VOLTAGE
Step-Up Mode
Step-Down Mode
VIN
2.0
12.6 V
30.0 V
SHUTDOWN QUIESCENT CURRENT
COMPARATOR TRIP POINT
VOLTAGE
VFB > 1.43 V; VSENSE > 1.1 × VOUT IQ
ADP30001
500
µA
1.20 1.245 1.30 V
OUTPUT SENSE VOLTAGE
ADP3000-3.32
ADP3000-52
ADP3000-122
VOUT
3.135 3.3 3.465 V
4.75 5.00 5.25 V
11.40 12.00 12.60 V
COMPARATOR HYSTERESIS
ADP3000
8
12.5 mV
OUTPUT HYSTERESIS
ADP3000-3.3
ADP3000-5
ADP3000-12
32
50
mV
32
50
mV
75
120 mV
OSCILLATOR FREQUENCY
DUTY CYCLE
SWITCH ON TIME
SWITCH SATURATION VOLTAGE
STEP-UP MODE
STEP-DOWN MODE
FEEDBACK PIN BIAS CURRENT
VFB > VREF
ILIM Tied to VIN, VFB = 0
TA = +25°C
VIN = 3.0 V, ISW = 650 mA
VIN = 5.0 V, ISW = 1 A
VIN = 12 V, ISW = 650 mA
ADP3000 VFB = 0 V
fOSC
D
tON
VSAT
IFB
350 400
65 80
1.5 2
450 kHz
%
2.55 µs
0.5 0.75 V
0.8 1.1 V
1.1 1.5 V
160 330 nA
SET PIN BIAS CURRENT
GAIN BLOCK OUTPUT LOW
REFERENCE LINE REGULATION
GAIN BLOCK GAIN
GAIN BLOCK CURRENT SINK
CURRENT LIMIT
CURRENT LIMIT TEMPERATURE
COEFFICIENT
VSET = VREF
ISINK = 300 µA
VSET = 1.00 V
5 V VIN 30 V
2 V VIN 5 V
RL = 100 k3
VSET 1 V
220 from ILIM to VIN
ISET
VOL
AV
ISINK
ILIM
200 400 nA
0.15 0.4 V
0.02 0.15 %/V
0.2 0.6 %/V
1000 6000
V/V
300
µA
400
mA
–0.3
%/°C
SWITCH OFF LEAKAGE CURRENT
Measured at SW1 Pin
VSW1 = 12 V, TA = +25°C
1
10
µA
MAXIMUM EXCURSION BELOW GND TA = +25°C
ISW1 10 µA, Switch Off
–400 –350 mV
NOTES
1This specification guarantees that both the high and low trip point of the comparator fall within the 1.20 V to 1.30 V range.
2The output voltage waveform will exhibit a sawtooth shape due to the comparator hysteresis. The output voltage on the fixed output versions will always be within the
specified range.
3100 kresistor connected between a 5 V source and the AO pin.
*All limits at temperature extremes are guaranteed via correlation using standard statistical methods.
Specifications subject to change without notice.
–2–
REV. 0
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