Datasheet

MAX1615/MAX1616
High-Voltage, Low-Power Linear Regulators
for Notebook Computers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 15V, SHDN = V
IN
, I
LOAD
= 5µA, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Note 2: Limits are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed through
correlation using standard quality-control (SQC) methods.
Note 3: Pulse tested at V
IN
= 28V, I
LOAD
= 30mA to avoid exceeding package power-dissipation limits.
Note 4: Guaranteed by design. Tested with V
OUT
set to 5V. Dropout voltage is tested by reducing the input voltage until V
OUT
drops
to 100mV below its nominal value, measured with V
IN
starting 2V above V
OUT
.
Note 5: Use at least 1µF minimum for light loads. Add 0.125µF/mA (0.2µF/mA for the MAX1616) for loads greater than 100µA,
not production tested. See Capacitor Selection in the Applications Information section.
60
0
030
SAFE LOAD-CURRENT
OPERATING AREA
vs. SUPPLY VOLTAGE
20
10
50
MAX1615-01
SUPPLY VOLTAGE (V)
OUTPUT CURRENT (mA)
105252015
40
30
POWER-
DISSIPATION
LIMIT REGION
V
OUT
= 5V
8
0
530
GROUND CURRENT
vs. SUPPLY VOLTAGE
AT VARIOUS LOADS
2
3
1
6
7
MAX1615-02
SUPPLY VOLTAGE (V)
GROUND CURRENT (mA)
10 252015
5
4
65mA
55mA
45mA
35mA
15mA
5mA
25mA
9.0
5.0
530
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
6.0
6.5
5.5
8.0
8.5
MAX1615-03
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
25201510
7.5
7.0
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
__________________________________________Typical Operating Characteristics
(V
OUT
set to 5V, T
A
= +25°C, unless otherwise noted.)
SHDN Input Threshold
Voltage
CONDITIONS
V
0.25V
IL
UNITSMIN TYP MAXSYMBOLPARAMETER
SHDN Input Current
V
SHDN
= 0V or 15V µA-1 1
Thermal-Shutdown
Temperature
V
SHDN
= 0V or 15V, hysteresis = +20°C °C150T
SHDN
V
IH
1.4