LTC3631IMS8E#TRPBF Linear Technology, LTC3631IMS8E#TRPBF Datasheet - Page 17

• Manufacturer Part Number: LTC3631IMS8E#TRPBF
• Description: IC CONV STP-DWN SYNC ADJ 8-MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3631IMS8E#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 45 V
• Current - Output: 100mA
• Voltage - Input: 4.5 ~ 45 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP Exposed Pad, 8-HMSOP, 8-eMSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -

Typical applicaTions
4.5V TO 24V
3.3V, 100mA Regulator with Peak Current Soft-Start, Small Size
4.5V TO 33V
V
V
IN
IN
22nF
C
SS
C
1µF
IN
C
C
L1: MURATA LQH43CN220K03
Positive-to-Negative Converter
C
1µF
IN
OUT
IN
: TDK C3216X7R1E105KT
: AVX 08056D106KAT2A
V
RUN
I
SS
SET
C
C
L1: TYCO/COEV DQ6545-101M
IN
V
RUN
I
HYST
IN
OUT
SET
LTC3631
IN
: TDK C3225X7R1H105KT
GND
LTC3631
: MURATA GRM32DR71C106KA01
GND
HYST
SW
V
FB
V
SW
SS
FB
5V TO 45V
22µH
L1
100µH
V
L1
IN
R1
294k
R2
93.1k
3642 TA03a
R1
1M
R2
71.5k
C
4.7µF
Figure 10. High Efficiency 5V Regulator
IN
C
C
L1: TDK SLF7045T-101MR50-PF
IN
OUT
: TDK C5750X7R2A475MT
: AVX 1812D107MAT
C
10µF
OUT
C
10µF
3631 TA04a
HYST
V
RUN
I
OUT
SET
V
–12V
IN
OUT
LTC3631
V
3.3V
100mA
OUT
GND
V
SW
SS
FB
100µH
L1
3631 F10a
C
47nF
SS
R1
1.47M
R2
280k
INDUCTOR
50mA/DIV
CURRENT
VOLTAGE
Maximum Load Current vs Input Voltage
OUTPUT
1V/DIV
100
90
80
70
60
50
40
30
20
5
I
SET
C
100µF
10
OUT
Soft-Start Waveforms
OPEN
15
V
5V
OUT
INPUT VOLTAGE (V)
V
20
OUT
500µs/DIV
= –3V
25
V
V
OUT
OUT
30
= –12V
= –5V
35
LTC3631
40
3631 TA04b
3631 TA03b
45
17
3631fc