LTC1148HV Linear Technology, LTC1148HV Datasheet - Page 2

• Manufacturer Part Number: LTC1148HV
• Description: High Efficiency Synchronous Step-Down Switching Regulators
• Manufacturer: Linear Technology

A
(Note 1)
Input Supply Voltage (Pin 3)
Continuous Output Current (Pins 1, 14) .............. 50mA
Sense Voltages (Pins 7, 8)
Operating Ambient Temperature Range ...... 0 C to 70 C
Extended Commercial
Temperature Range ............................... – 40 C to 85 C
Junction Temperature (Note 2) ............................ 125 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
LTC1148
LTC1148-3.3/LTC1148-5
SYMBOL
V
I
V
I
2
ELECTRICAL C
9
Q
9
OUT
V
BSOLUTE
OUT
LTC1148 and LTC1148L Series ............ 16V to – 0.3V
LTC1148HV Series ............................... 20V to – 0.3V
LTC1148HV (Adjustable Only)
V
V
IN
IN
< 12.7V ......................... (V
12.7V ...................................... 13V to – 0.3V
PARAMETER
Feedback Voltage (LTC1148, LTC1148L,
LTC1148HV)
Feedback Current (LTC1148, LTC1148L,
LTC1148HV)
Regulated Output Voltage
Output Voltage Line Regulation
Output Voltage Load Regulation
Output Ripple (Burst Mode)
Input DC Supply Current (Note 3)
LTC1148-3.3, LTC1148HV-3.3, LTC1148L-3.3 I
LTC1148-5, LTC1148HV-5
LTC1148-3.3, LTC1148HV-3.3, LTC1148L-3.3 5mA < I
LTC1148-5, LTC1148HV-5
LTC1148 Series
LTC1148HV Series
LTC1148L Series
Normal Mode
Sleep Mode
Sleep Mode (LTC1148-5)
Shutdown
Normal Mode
Sleep Mode
Sleep Mode (LTC1148HV-5)
Shutdown
Normal Mode
Sleep Mode
Shutdown
W
A
HARA TERISTICS
XI
W
U
C
W
IN
R
+ 0.3V) to – 0.3V
A
TI
U
G
CONDITIONS
V
V
I
V
5mA < I
I
(Note 7)
4V < V
4V < V
6V < V
V
4V < V
4V < V
6V < V
V
3.5V < V
3.5V < V
V
LOAD
LOAD
LOAD
S
IN
IN
IN
SHUTDOWN
SHUTDOWN
SHUTDOWN
T
A
= 9V
= 9V
= 7V to 12V, I
= 25 C, V
= 700mA
= 700mA
= 0A
IN
IN
IN
IN
IN
IN
LOAD
LOAD
IN
IN
< 12V
< 12V
< 12V
< 18V
< 18V
< 18V
< 12V
< 12V
= 2.1V, 4V < V
= 2.1V, 4V < V
= 2.1V, 3.5V < V
< 2A
< 2A
PACKAGE/ORDER I FOR ATIO
Consult factory for Industrial and Military grade parts.
IN
P-DRIVE
SENSE
LOAD
INTV
14-LEAD PDIP
= 10V, V
N PACKAGE
V
NC
I
C
CC
TH
*FIXED OUTPUT VERSIONS = NC
IN
T
–
= 50mA
T
T
JMAX
JMAX
1
2
3
4
5
6
7
IN
IN
= 125 C,
= 125 C,
IN
SHUTDOWN
< 12V
< 18V
< 12V
TOP VIEW
JA
JA
14-LEAD PLASTIC SO
= 70 C/ W (N)
= 110 C/ W (S)
= 0V unless otherwise noted.
S PACKAGE
14
13
12
11
10
9
8
N-DRIVE
NC
PGND
SGND
SHUTDOWN
V
SENSE
FB
*
+
MIN
1.21
3.23
4.90
– 40
U
LTC1148CN
LTC1148HVCN
LTC1148CN-3.3
LTC1148HVCN-3.3
LTC1148CN-5
LTC1148HVCN-5
LTC1148CS
LTC1148HVCS
LTC1148LCS
LTC1148CS-3.3
LTC1148HVCS-3.3
LTC1148LCS-3.3
LTC1148CS-5
LTC1148HVCS-5
TYP
1.25
3.33
5.05
160
160
160
160
160
0.2
1.6
1.6
1.6
ORDER PART
40
60
50
10
10
10
0
NUMBER
W
MAX
1.29
3.43
5.20
100
230
230
250
250
230
2.1
2.3
2.1
40
65
20
22
20
1
UNITS
mV
U
mV
mV
mV
mA
mA
mA
P-P
V
A
V
V
A
A
A
A
A
A
A
A