LTC1649CS#PBF Linear Technology, LTC1649CS#PBF Datasheet - Page 2

• Manufacturer Part Number: LTC1649CS#PBF
• Description: IC BUCK/SW CAP SYNC ADJ 16SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Switched Capacitor (Charge Pump)r

Specifications of LTC1649CS#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.26 ~ 2.5 V
• Current - Output: 20A
• Frequency - Switching: 200kHz
• Voltage - Input: 2.7 ~ 5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

ABSOLUTE
LTC1649
(Note 1)
Supply Voltage
Input Voltage
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
SYMBOL PARAMETER
V
V
V
I
I
f
f
V
V
I
gm
gm
I
I
t
t
DC
2
ELECTRICAL CHARACTERISTICS
IN
PVCC1, 2
CP
OSC
IN
IMAX
SS
r
NOV
IN
FB
CPOUT
IH
IL
, t
MAX
V
I
f
V
V
P
I
C
All Other Inputs ....................... – 0.3V to (V
LTC1649C ............................................... 0 C to 70 C
LTC1649I ............................................ – 40 C to 85 C
FB .......................................................................
IN ...........................................................................................
CC ...........................................................................................
VCC1, 2 ................................................................................
+
, C
Minimum Supply Voltage
Feedback Voltage
Charge Pump Output Voltage
Supply Current (V
Supply Current (P
Internal Charge Pump Frequency
Internal PWM Oscillator Frequency
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
Error Amplifier Transconductance
I
I
Soft Start Source Current
Driver Rise/Fall Time
Driver Non-Overlap Time
Maximum Duty Cycle
– ................................................
LIM
MAX
Amplifier Transconductance
Sink Current
W
MAXIMUM
IN
VCC1, 2
)
)
W W
– 0.3V to (V
CONDITIONS
Figure 1 (Note 3)
Figure 1
Figure 1
V
V
P
V
I
(Note 6)
V
V
P
P
V
RATINGS
CPOUT
SHDN
SHDN
VCC
SHDN
IMAX
SS
VCC1
VCC1
COMP
= 0V
= 5V, V
= V
= P
= P
= V
= 0V
= 0V
= 20mA (Note 5)
= V
– 0.3V to 18V
CC
VCC2
VCC2
U
CC
CC
A
, I
SHDN
CC
IN
= 25 C. V
LOAD
= 5V (Note 7)
= 5V
+ 0.3V)
+ 0.3V)
= V
The
= 0
13V
CC
6V
9V
(Note 4)
IN
denotes the specifications which apply over the full operating
= 3.3V (Note 2)
PACKAGE/ORDER
Consult factory for parts specified with wider operating temperature ranges.
P
SHDN
VCC1
GND
V
G1
SS
FB
C
IN
–
T
JMAX
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
MIN
1.25
90.5
140
2.7
4.8
2.4
–8
25
8
= 150 C,
S PACKAGE
TOP VIEW
LTC1649CS
1.265
1300
TYP
700
200
650
–12
130
1.5
0.1
0.01
10
12
80
93
JA
5
3
= 110 C/ W
16
15
14
13
12
11
10
9
MAX
1.28
260
–16
250
250
5.2
0.8
25
16
5
G2
P
V
I
I
COMP
CP
C
1
FB
MAX
VCC2
CC
+
OUT
INFORMATION
MIN
1.23
4.75
90.5
130
2.7
2.4
–8
25
U
8
LTC1649IS
1.265
ORDER PART
1300
TYP
700
200
650
–12
130
1.5
0.1
0.01
10
12
80
93
LTC1649CS
LTC1649IS
5
3
NUMBER
W
MAX
1.29
5.25
325
–17
250
250
0.8
25
17
5
1
UNITS
U
Mho
Mho
kHz
kHz
mA
mA
ns
ns
%
V
V
V
A
A
V
V
A
A
A