Datasheet

2
LTC1516
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
(Note 1)
V
IN
to GND...................................................–0.3V to 6V
V
OUT
to GND ................................................–0.3V to 6V
SHDN to GND ..............................................–0.3V to 6V
V
OUT
Short-Circuit Duration.............................Indefinite
Operating Temperature Range
Commercial .............................................0°C to 70°C
Industrial ............................................ –40°C to 85°C
Storage Temperature Range................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
ELECTRICAL CHARACTERISTICS
V
IN
= 2V to 5V, C1 = C2 = 0.22µF, C
IN
= C
OUT
= 10µF, T
MIN
to T
MAX
unless otherwise specified (Note 3).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input Voltage ● 25V
V
OUT
Output Voltage 2V ≤ V
IN
≤ 5V, I
OUT
≤ 20mA ● 4.8 5.2 V
3V
≤ V
IN
≤ 3.6V, I
OUT
≤ 50mA ● 4.8 5.2 V
3.6V ≤ V
IN
≤ 5V, I
OUT
≤ 50mA, T
A
= 25°C (Note 2) 4.8 5.2 V
I
CC
Supply Current 2V ≤ V
IN
≤ 5V, I
OUT
= 0mA, SHDN = 0V ● 12 20 µA
2V ≤ V
IN
≤ 5V, I
OUT
= 0mA, SHDN = V
IN
● 0.005 1 µA
Output Ripple Full Load 100 mV
Efficiency V
IN
= 3V, I
OUT
= 20mA 82 %
f
OSC
Switching Frequency Full Load 600 kHz
V
IH
SHDN Input Threshold ● (0.7)(V
IN
)V
V
IL
● 0.4 V
I
IH
SHDN Input Current V
SHDN
= V
IN
● –1 1 µA
I
IL
V
SHDN
= 0V ● –1 1 µA
t
ON
V
OUT
Turn-On Time V
IN
= 3V, I
OUT
= 0mA (Note 3) 500 µs
S8 PART MARKING
The ● denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired
Note 2: At input voltages >3.6V and ambient temperatures >70°C,
continuous power dissipation must be derated to maintain junction
temperatures below 125°C. Derate 6mW/°C above 70°C in SO-8.
Note 3: The LTC1516 is tested with the capacitors shown in Figure 1.
1516
1516I
ORDER PART
NUMBER
LTC1516CS8
LTC1516IS8
T
JMAX
= 125°C, θ
JA
= 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
C1
–

SHDN
GND
C2
–
C1
+

V
IN

V
OUT
C2
+
S8 PACKAGE
8-LEAD PLASTIC SO
Consult factory for Military grade parts.