Datasheet

2
LTC1147-3.3
LTC1147-5/LTC1147L
sn1147 1147fds
Input Supply Voltage (Pin 1) .................... 16V to –0.3V
Continuous Output Current (Pin 8) ...................... 50mA
Sense Voltages (Pins 4, 5)
V
IN
≥ 12.7V ...........................................13V to –0.3V
V
IN
< 12.7V............................... (V
IN
+ 0.3V) to –0.3V
ABSOLUTE AXI U RATI GS
W
WW
U
Operating Ambient Temperature Range
LTC1147C ............................................... 0°C to 70°C
LTC1147I............................................. –40°C to 85°C
Extended Commercial
Temperature Range (Note 4) ................. –40°C to 85°C
Junction Temperature (Note 1)............................ 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
6
Feedback Voltage (LTC1147L) V
IN
= 9V ● 1.21 1.25 1.29 V
I
6
Feedback Current (LTC1147L) ● 0.2 1 µA
V
OUT
Regulated Output Voltage V
IN
= 9V
LTC1147-3.3, LTC1147L-3.3 I
LOAD
= 700mA ● 3.23 3.33 3.43 V
LTC1147-5 I
LOAD
= 700mA ● 4.90 5.05 5.20 V
∆V
OUT
Output Voltage Line Regulation V
IN
= 7V to 12V, I
LOAD
= 50mA –40 0 40 mV
Output Voltage Load Regulation
LTC1147-3.3, LTC1147L-3.3 5mA < I
LOAD
< 2A ● 40 65 mV
LTC1147-5 5mA < I
LOAD
< 2A ● 60 100 mV
Burst Mode Output Ripple I
LOAD
= 0A 50 mV
P-P
I
Q
Input DC Supply Current (Note 2) (Note 5)
LTC1147 Series
Normal Mode 4V < V
IN
< 12V 1.6 2.1 mA
Sleep Mode 4V < V
IN
< 12V 160 230 µA
Sleep Mode (LTC1147-5) 5V < V
IN
< 12V 160 230 µA
Shutdown V
SHDN
= 2.1V, 4V < V
IN
< 12V 10 20 µA
LTC1147L Series
Normal Mode 3.5V < V
IN
< 12V 1.6 2.1 mA
Sleep Mode 3.5V < V
IN
< 12V 160 230 µA
Shutdown (LTC1147L-3.3) V
SHDN
= 2.1V, 3.5V < V
IN
< 12V 10 20 µA
T
A
= 25°C, V
IN
= 10V, V
SHDN
= 0V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Consult factory for Military grade parts.
PACKAGE/ORDER I FOR ATIO
UUW
* ADJUSTABLE OUTPUT VERSION
SHDN
(V
FB
*)
1
2
3
4
8
7
6
5
TOP VIEW
V
IN
C
T
I
TH
SENSE
–
PDRIVE
GND
SENSE
+
N8 PACKAGE
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 125°C, θ
JA
= 110°C/W (N)
T
JMAX
= 125°C, θ
JA
= 150°C/W (S)
LTC1147IS8-5
LTC1147LCS8
LTC1147LCS8-3.3
LTC1147LIS8
11473
11475
1147I3
1147I5
1147L
1147L3
1147LI
LTC1147CN8-3.3
LTC1147CN8-5
LTC1147CS8-3.3
LTC1147CS8-5
LTC1147IS8-3.3
ORDER PART NUMBER S8 PART MARKING