LTC1625IGN Linear Technology, LTC1625IGN Datasheet - Page 2

• Manufacturer Part Number: LTC1625IGN
• Description: IC SW REG STEP-DOWN SYNC 16-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1625IGN

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.19 ~ 36 V
• Current - Output: 50mA
• Frequency - Switching: 150kHz
• Voltage - Input: 3.7 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

ABSOLUTE
LTC1625
(Note 1)
Input Supply Voltage (V
Boosted Supply Voltage (BOOST) ............. 42V to – 0.3V
Boosted Driver Voltage (BOOST – SW) ...... 7V to – 0.3V
Switch Voltage (SW).....................................36V to – 5V
EXTV
I
FCB, RUN/SS, SYNC Voltages .....................7V to – 0.3V
V
Peak Driver Output Current < 10 s (TG, BG) ............ 2A
INTV
Operating Ambient Temperature Range
Junction Temperature (Note 2) ............................. 125 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
2
ELECTRICAL CHARACTERISTICS
SYMBOL
Main Control Loop
I
V
V
V
V
I
V
I
I
V
I
TG t
TG t
TH
IN
FCB
PROG
Q
RUN/SS
OUT
LINEREG
LOADREG
FCB
OVL
RUN/SS
V
OSENSE
V
SENSE(MAX)
LTC1625C............................................... 0 C to 70 C
LTC1625I (Note 5) .............................. – 40 C to 85 C
OSENSE
R
F
Voltage ................................................2.7V to – 0.3V
CC
CC
Output Current ........................................ 50mA
, V
Voltage ...........................................7V to – 0.3V
PROG
PARAMETER
Feedback Current
Regulated Output Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Forced Continuous Threshold
Forced Continuous Current
Output Overvoltage Lockout
V
Input DC Supply Current
RUN/SS Pin Threshold
Soft Start Current Source
Maximum Current Sense Threshold
TG Transition Time
PROG
1.19V (Adjustable) Selected
3.3V Selected
5V Selected
3.3V V
5V V
Normal Mode
Shutdown
Rise Time
Fall Time
Voltages ........(INTV
Input Current
W
MAXIMUM
OUT
OUT
IN
, TK) ................. 36V to – 0.3V
W W
RATINGS
CC
+ 0.3V) to – 0.3V
U
CONDITIONS
V
I
V
V
V
V
V
I
I
V
V
V
V
V
EXTV
V
V
V
C
C
TH
TH
TH
PROG
PROG
PROG
PROG
IN
PROG
FCB
FCB
PROG
PROG
PROG
RUN/SS
RUN/SS
OSENSE
LOAD
LOAD
= 1.19V (Note 3)
= 2V (Note 3)
= 0.5V (Note 3)
= 3.6V to 20V, I
Ramping Negative
= 1.19V
CC
= 3300pF
= 3300pF
Pin Open, I
Pin Open
= 0V
= INTV
Pin Open
Pin Open
= 0V
= 5V
T
= 5V (Note 4)
= 0V, 3.7V < V
= 0V
= 1V, V
A
= 25 C, V
CC
PROG
TH
TH
PACKAGE/ORDER I FOR ATIO
Consult factory for Military grade parts.
= 1.19V (Note 3)
Pin Open
IN
= 1.19V (Note 3),
16-LEAD PLASTIC SSOP
IN
= 15V unless otherwise noted.
V
RUN/SS
< 15V
EXTV
OSENSE
V
SGND
SYNC
GN PACKAGE
PROG
T
T
FCB
JMAX
JMAX
I
CC
TH
= 125 C,
= 125 C,
1
2
3
4
5
6
7
8
TOP VIEW
JA
JA
16-LEAD PLASTIC SO
= 130 C/W (GN)
= 110 C/W (S)
S PACKAGE
16
15
14
13
12
11
10
9
1.178
3.220
4.900
MIN
1.16
1.24
120
0.8
1.2
V
TK
SW
TG
BOOST
INTV
BG
PGND
IN
CC
U
– 0.020
1.190
3.300
5.000
0.001
– 3.5
1.19
1.28
TYP
0.035
500
150
1.4
2.5
– 1
10
15
50
50
3.5
ORDER PART
LTC1625CGN
LTC1625CS
LTC1625IGN
LTC1625IS
NUMBER
W
1.202
3.380
5.100
MAX
0.01
– 0.2
1.22
1.32
170
150
150
50
–2
–7
30
0.2
2
4
7
UNITS
U
%/V
mV
nA
ns
ns
%
%
V
V
V
V
A
V
A
A
A
A
V
A