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–2–
REV. A
ADP1148, ADP1148-3.3, ADP1148-5–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
Parameter Symbol Conditions
2
Min Typ Max Units
FEEDBACK VOLTAGE
ADP1148 Only V
10
V
IN
= 9 V 1.21 1.25 1.29 V
FEEDBACK CURRENT
ADP1148 Only I
10
0.2 1.0 µA
REGULATED OUTPUT VOLTAGE V
OUT
V
IN
= 9 V
ADP1148-3.3 I
LOAD
= 700 mA 3.23 3.33 3.43 V
ADP1148-5 I
LOAD
= 700 mA 4.9 5.05 5.2 V
OUTPUT VOLTAGE LINE T
A
= +25°C, V
IN
= 7 V to 12 V,
REGULATION dV
OUT
I
LOAD
= 50 mA –40 +40 mV
OUTPUT VOLTAGE LOAD
REGULATION dV
OUT
ADP1148-3.3 5 mA < I
LOAD
< 2 A 40 65 mV
ADP1148-5 5 mA < I
LOAD
< 2 A 60 100 mV
SLEEP MODE OUTPUT RIPPLE dV
OUT
I
LOAD
= 0 A 50 mV p-p
INPUT DC SUPPLY CURRENT
3
I
Q
T
A
= +25°C
Normal Mode V
IN
= 4 V < V
IN
< 18 V 1.6 2.3 mA
Sleep Mode (ADP1148-3.3) V
IN
= 4 V < V
IN
< 18 V 160 250 µA
Sleep Mode (ADP1148-5) V
IN
= 4 V < V
IN
< 18 V 160 250 µA
Shutdown V
SHUTDOWN
= 2.1 V, 10 20 µA
4 V < V
IN
< 15 V
CURRENT SENSE THRESHOLD V
8
–V
7
V
9
= V
OUT
/4 + 25 mV (Forced),
VOLTAGE
4
V
7
= 5 V, T
A
= +25°C25mV
ADP1148 Only V
9
= V
OUT
/4 mV – 25 mV (Forced),
V
7
= 5 V 130 150 170 mV
ADP1148-3.3 V
7
= V
OUT
+ 100 mV (Forced) 25 mV
V
7
= V
OUT
–
100 mV (Forced) 130 150 170 mV
ADP1148-5 V
7
= V
OUT
+ 100 mV (Forced 25 mV
V
7
= V
OUT
– 100 mV (Forced) 130 150 170 mV
SHUTDOWN PIN THRESHOLD
ADP1148-3.3, ADP1148-5 V
10
T
A
= +25°C 0.6 0.8 2.0 V
SHUTDOWN PIN INPUT CURRENT I
10
0 V < V
SHUTDOWN
< 8 V, V
IN
= 18 V 1.2 5 µA
C
T
PIN DISCHARGE CURRENT I
4
T
A
= +25°C, V
OUT
in Regulation,
V
7
= V
OUT
, 506590 µA
V
OUT
= 0 V 2 10 µA
OFF-TIME t
OFF
C
T
= 390 pF, I
LOAD
= 700 mA 4 5 6 µs
DRIVER OUTPUT TRANSITION t
R
, t
F
C
L
= 3000 pF (Pins 1, 14)
TIMES V
IN
= 6 V, T
A
= +25°C 100 200 ns
NOTES
1
All limits at temperature extremes are guaranteed via correlation using standard Quality Control methods. Specifications subject to change without notice.
2
T
J
is calculated from the ambient temperature T
A
and power dissipation P
D
according to the following formulas:
ADP1148AR, ADP1148AR-3.3, ADP1148AR-5: T
J
= T
A
+ (P
D
× 110°C/W)
ADP1148AN, ADP1148AN-3.3, ADP1148AN-5: T
J
= T
A
+ (P
D
× 70°C/W)
3
Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. The allowable operating frequency may be limited by power
dissipation at high input voltages.
4
The ADP1148 version is tested with external feedback resistors, setting the nominal output voltage to 3.3 V.
Specifications subject to change without notice.
(0؇C ≤ T
A
≤ +70؇C,
1
V
IN
= 10 V, V
SHUTDOWN
= 0 V, unless otherwise noted. See Figure 17.)