Changes to Ordering Guide .......................................................... 19
6/2007—Revision 0: Initial Version
Rev. A | Page 2 of 20
Data Sheet
SPECIFICATIONS
ADP1706/ADP1707/ADP1708
V
IN
= (V
OUT
+ 0.6 V) or 2.5 V (whichever is greater), I
OUT
= 10 mA, C
IN
= C
OUT
= 4.7 µF, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter
INPUT VOLTAGE RANGE
OPERATING SUPPLY CURRENT
Symbol
V
IN
I
GND
Test Conditions/Comments
T
J
= –40°C to +125°C
I
OUT
= 0 mA
I
OUT
= 100 mA
I
OUT
= 100 mA, T
J
= −40°C to +125°C
I
OUT
= 1 A
I
OUT
= 1 A, T
J
= −40°C to +125°C
EN = GND
EN = GND, T
J
= −40°C to +125°C
I
OUT
= 10 mA
I
OUT
= 100 µA to 1 A
100 µA < I
OUT
< 1 A, T
J
= −40°C to +125°C
I
OUT
= 10 mA
I
OUT
= 100 µA to 1 A
100 µA < I
OUT
< 1 A, T
J
= −40°C to +125°C
V
IN
= (V
OUT
+ 0.6 V) to 5.5 V,
T
J
= −40°C to +125°C
I
OUT
= 10 mA to 1 A, T
J
= −40°C to +125°C
I
OUT
= 100 mA, V
OUT
≥ 3.3 V
I
OUT
= 100 mA, V
OUT
≥ 3.3 V,
T
J
= −40°C to +125°C
I
OUT
= 1 A, V
OUT
≥ 3.3 V
I
OUT
= 1 A, V
OUT
≥ 3.3 V, T
J
= −40°C to +125°C
I
OUT
= 100 mA, 2.5 V ≤ V
OUT
< 3.3 V
I
OUT
= 100 mA, 2.5 V ≤ V
OUT
< 3.3 V,
T
J
= −40°C to +125°C
I
OUT
= 1 A, 2.5 V ≤ V
OUT
< 3.3 V
I
OUT
= 1 A, 2.5 V ≤ V
OUT
< 3.3 V,
T
J
= −40°C to +125°C
Min
2.5
Typ
50
310
390
1.2
1.55
0.1
1.0
−1
−1.5
−2.5
0.792
0.788
0.780
−0.1
+1
+1.5
+2.5
0.808
0.812
0.820
+0.1
0.001
33
55
345
600
35
60
365
630
Max
5.5
Unit
V
µA
µA
µA
mA
mA
µA
µA
%
%
%
V
V
V
%/V
%/mA
mV
mV
mV
mV
mV
mV
mV
mV
SHUTDOWN CURRENT
OUTPUT VOLTAGE ACCURACY
Fixed Output Voltage Accuracy (ADP1706
and
ADP1707)
Adjustable Output Voltage Accuracy
(ADP1708)
1
LINE REGULATION
LOAD REGULATION
2
DROPOUT VOLTAGE
3
I
GND-SD
V
OUT
V
OUT
0.8
∆V
OUT
/∆V
IN
∆V
OUT
/∆I
OUT
V
DROPOUT
START-UP TIME
4
ADP1707
and
ADP1708
ADP1706
CURRENT LIMIT THRESHOLD
5
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
SOFT START SOURCE CURRENT (ADP1706)
V
OUT
to V
TRK
ACCURACY (ADP1707)
t
START-UP
C
SS
= 10 nF
I
LIMIT
TS
SD
TS
SD-HYS
SS
I-SOURCE
V
TRK-ERROR
T
J
rising
SS = GND
0 V ≤ V
TRK
≤ (0.5 × V
OUT (NOM)
), V
OUT (NOM)
≤ 1.8 V,
T
J
= −40°C to +125°C
0 V ≤ V
TRK
≤ (0.5 × V
OUT (NOM)
), V
OUT (NOM)
> 1.8 V,
T
J
= −40°C to +125°C
2.5 V ≤ V
IN
≤ 5.5 V
2.5 V ≤ V
IN
≤ 5.5 V
EN = IN or GND
0.6
−40
−60
1.1
100
7.3
1.5
150
15
1.1
1.6
+40
+60
µs
ms
A
°C
°C
µA
mV
mV
1.8
EN INPUT
EN Input Logic High
EN Input Logic Low
EN Input Leakage Current
ADJ INPUT BIAS CURRENT (ADP1708)
SENSE INPUT BIAS CURRENT
V
IH
V
IL
V
I-LEAKAGE
ADJ
I-BIAS
SNS
I-BIAS
1.8
0.1
30
4
0.4
1
100
V
V
µA
nA
µA
Rev. A | Page 3 of 20
ADP1706/ADP1707/ADP1708
Parameter
OUTPUT NOISE
POWER SUPPLY REJECTION RATIO
1
Data Sheet
Symbol
OUT
NOISE
PSRR
Test Conditions/Comments
10 Hz to 100 kHz, V
OUT
= 0.75 V
10 Hz to 100 kHz, V
OUT
= 3.3 V
1 kHz, V
OUT
= 0.75 V
1 kHz, V
OUT
= 3.3 V
Min
Typ
125
450
70
56
Max
Unit
µV rms
µV rms
dB
dB
Accuracy when OUT is connected directly to ADJ. When OUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances
of resistors used.
2
Based on an end-point calculation using 10 mA and 1 A loads. See Figure 11 for typical load regulation performance for loads less than 10 mA.
3
Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 2.5 V.
4
Start-up time is defined as the time between the rising edge of EN to OUT being at 95% of its nominal value.
5
Current limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 1.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 1.0 V, or 0.9 V.
Rev. A | Page 4 of 20
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
IN to GND
OUT to GND
EN to GND
SS/ADJ/TRK to GND
SENSE to GND
Storage Temperature Range
Operating Junction Temperature Range
Soldering Conditions
Rating
−0.3 V to +6 V
–0.3 V to IN
–0.3 V to +6 V
–0.3 V to +6 V
–0.3 V to +6 V
–65°C to +150°C
–40°C to +125°C
JEDEC J-STD-020
ADP1706/ADP1707/ADP1708
THERMAL RESISTANCE
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type
8-Lead SOIC (Exposed Paddle)
8-Lead 3 mm × 3 mm LFCSP (Exposed Paddle)
θ
JA
58
66
Unit
°C/W
°C/W
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
