
–2–
REV. 0
ADP1173–SPECIFICATIONS
(@ T
A
= 0
8
C to +70
8
C, V
IN
= 3 V unless otherwise noted)
Model
Symbol
Conditions
Min
Typ
Max
Units
μ
A
QUIESCENT CURRENT
I
Q
Switch Off
110
150
QUIESCENT CURRENT, BOOST MODE
CONFIGURATION
I
Q
No Load, T
A
= +25
°
C
ADP1173-3.3
ADP1173-5
ADP1173-12
135
135
250
μ
A
μ
A
μ
A
INPUT VOLTAGE
V
IN
Step-Up Mode
Step-Down Mode
2.0
12.6
30
V
V
COMPARATOR TRIP POINT VOLTAGE
ADP1173
1
1.20
1.245
1.30
V
OUTPUT SENSE VOLTAGE
V
OUT
ADP1173-3.3
2
ADP1173-5
2
ADP1173-12
2
3.14
4.75
11.4
3.30
5.00
12.0
3.46
5.25
12.6
V
V
V
COMPARATOR HYSTERESIS
ADP1173
5
12
mV
OUTPUT HYSTERESIS
ADP1173-3.3
ADP1173-5
ADP1173-12
13
20
50
35
55
100
mV
mV
mV
OSCILLATOR FREQUENCY
f
OSC
16
24
32
kHz
DUTY CYCLE
Full Load
43
55
63
%
SWITCH ON TIME
t
ON
I
LIM
Tied to V
IN
15
23
32
μ
s
FEEDBACK PIN BIAS CURRENT
ADP1173, V
FB
= 0 V
60
290
nA
SET PIN BIAS CURRENT
V
SET
= V
REF
70
150
nA
GAIN BLOCK OUTPUT LOW
V
OL
I
SINK
= 100
μ
A, V
SET
= 1.00 V
0.15
0.4
V
REFERENCE LINE REGULATION
2.0 V
≤
V
IN
≤
5 V
5 V
≤
V
IN
30 V
0.2
0.02
0.4
0.075
%/V
%/V
SW
SAT
VOLTAGE, STEP-UP MODE
V
SAT
V
IN
= 3.0 V, I
SW
= 650 mA
V
IN
= 5.0 V, I
SW
= 1 A,
T
A
= +25
°
C
V
IN
= 5.0 V, I
SW
= 1 A
0.5
0.85
V
0.8
1.0
1.4
V
V
SW
SAT
VOLTAGE, STEP-DOWN MODE
V
SAT
V
IN
= 12 V, T
A
= +25
°
C,
I
SW
= 650 mA
V
IN
= 12 V, I
SW
= 650 mA
1.1
1.5
1.7
V
V
GAIN BLOCK GAIN
A
V
R
L
= 100 k
3
400
1000
V/V
CURRENT LIMIT
220
from I
LIM
to V
IN
T
A
= +25
°
C
400
mA
CURRENT LIMIT TEMPERATURE
COEFFICIENT
–0.3
%/
°
C
SWITCH-OFF LEAKAGE CURRENT
Measured at SW1 Pin
T
A
= +25
°
C
1
10
μ
A
MAXIMUM EXCURSION BELOW GND
V
SW2
I
SW1
≤
10
μ
A, Switch Off
T
A
= +25
°
C
–400
–350
mV
NOTES
1
This specification guarantees that both the high and low trip points of the comparator fall within the 1.20 V to 1.30 V range.
2
The 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.
3
100 k
resistor connected between a 5 V source and the AO pin.
Specifications subject to change without notice.