REV. 0
–2–
(V
IN
= +9 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted)
ABSOLUTE MAXIMUM RATINGS*
(T
A
= +25°C unless otherwise noted)
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18 V
Terminal Voltage
(ADM663A) Pins 1, 3, 5, 6, 7
. . . . . . . . . . . . . . . . . . . . . . (GND
– 0.3 V) to (V
IN
+ 0.3 V)
(ADM666A) Pins 1, 2, 3, 5, 6
. . . . . . . . . . . . . . . . . . . . . . . (GND
– 0.3 V) to (V
IN
+ 0.3 V)
(ADM663A) Pin 2 . . . . . . . .(GND – 0.3 V) to (V
OUT1
+ 0.3 V)
(ADM666A) Pin 7 . . . . . . . . . . . . . . (GND
– 0.3 V) to +16.5 V
Output Source Current
(ADM663A, ADM666A) Pin 2 . . . . . . . . . . . . . . . . . . 100 mA
(ADM663A) Pin 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
Output Sink Current, Pin 7 . . . . . . . . . . . . . . . . . . . . . .–20 mA
Power Dissipation, N-8 . . . . . . . . . . . . . . . . . . . . . . . . 800 mW
(Derate 8.3 mW/°C above +30°C)
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 120°C/W
ADM663A/ADM666A–SPECIFICATIONS
Power Dissipation, R-8 . . . . . . . . . . . . . . . . . . . . . . . . 570 mW
(Derate 6 mW/°C above +30°C)
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 170°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . +300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>5000 V
*This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation sections of this specifica-
tion is not implied. Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
Parameter Min Typ Max Units Test Conditions/Comments
Input Voltage, V
IN
2.0 16.5 V
Quiescent Current, I
Q
69 µA No Load, V
IN
= +16.5 V
Output Voltage, V
OUT(2)
(+5 V Mode) 4.75 5.0 5.25 V V
SET
= GND
Output Voltage, V
OUT(2)
(+3.3 V Mode) 3.135 3.3 3.465 V V
SET
= V
IN
Dropout Voltage, V
DO
0.75 0.9 V I
OUT
= 40 mA, V
OUT
= +14.5 V
Dropout Voltage, V
DO
1.0 1.2 V I
OUT
= 100 mA, V
OUT
= +14.5 V
Line Regulation (∆V
OUT(2)
/∆V
IN
) 0.03 0.35 %/V +2 V ≤ V
IN
≤ +15 V, V
OUT
= V
REF
Load Regulation V
IN
= (V
OUT
+3 V), 1 mA ≤ I
OUT(2)
≤ 100 mA
∆V
OUT(2)
;(∆V
OUT(2)
/∆I
OUT(2)
) 0.3 1.0 Ω V
SET
= GND (Fixed +5 V Output)
0.15 0.35 Ω V
SET
= V
IN
(Fixed +3.3 V Output)
0.15 0.30 Ω V
SET
= Resistive Divider (Adjustable Output)
∆V
OUT1
;(∆V
OUT1
/∆I
OUT1
) 0.25 1.2 Ω ADM663A, 50 µA ≤ I
OUT1
≤ 10 mA
Reference Voltage, V
SET
1.27 1.33 V T
A
= +25°C, V
OUT
= V
SET
Reference Tempco (∆V
SET
/∆T) ±100 ppm/°C
V
SET
Internal Threshold
V
F/A
Low 50 mV V
SET
< V
F/A
Low for +5 V Output
V
F/A
High V
IN
– 50 mV V
SET
> V
F/A
High for +3.3 V Output
V
SET
Input Current, I
SET
±0.01 ±10 nA
Shutdown Input Voltage, V
SHDN
1.4 V V
SHDN
High = Output Off
0.3 V V
SHDN
Low = Output On
Shutdown Input Current, I
SHDN
±0.01 ±10 nA
SENSE Input Threshold, V
OUT
– V
SENSE
0.5 V Current Limit Threshold
SENSE Input Resistance, R
SENSE
3MΩ
Input-Output Saturation Resistance, R
SAT
ADM663A, V
OUT1
200 400 Ω V
IN
= +2 V, I
OUT
= 1 mA
20 40 Ω V
IN
= +9 V, I
OUT
= 10 mA
20 30 Ω V
IN
= +15 V, I
OUT
= 10 mA
Output Current, I
OUT(2)
100 mA +3 V ≤ V
IN
≤ +16.5 V, V
IN
– V
OUT
= +1.5 V
Minimum Load Current, I
L (MIN)
1.0 µA
LBI Input Threshold
Low Going 1.1 1.26 V ADM666A
High Going 1.29 1.42 V ADM666A
Hysteresis 30 mV ADM666A
LBI Input Current, I
LBI
±0.01 ±10 nA ADM666A
LBO Output Saturation Resistance, R
SAT
20 30 Ω ADM666A, I
SAT
= 2 mA
LBO Output Leakage Current 0.2 nA ADM666A, LBI = 1.4 V
V
TC
Open Circuit Voltage, V
TC
0.9 V ADM663A
V
TC
Sink Current, I
TC
8.0 2.0 mA ADM663A
V
TC
Temperature Coefficient +2.5 mV/°C ADM663A
Specifications subject to change without notice.
