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LT1931AIS5#TRMPBF

P1-P3P4-P6P7-P9P10-P12
10
LT1931/LT1931A
1931fa
TYPICAL APPLICATIO S
U
V
IN
V
IN
5V
V
OUT
–5V
200mA
1931 TA06a
SW
L1
3.3µH
L2
3.3µH
D1
GND
LT1931A
C1: TAIYO YUDEN X5R JMK212BJ225MG
C2: TAIYO YUDEN X5R LMK212BJ105MG
C3: TAIYO YUDEN X5R JMK212BJ475MG
D1: ON SEMICONDUCTOR MBR0520
L1, L2: PANASONIC ELJPC3R3MF
C1
2.2µF
C3
4.7µF
C2
1µF
R2
10k
R1
28.7k
C4
68pF
NFB
SHDN
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
55
60
65
70
75
80
50 100 150 200
1931 TA06b
250
2.2MHz, 5V to –5V Converter Uses Tiny Chip Inductors Efficiency
V
IN
V
IN
12V
V
SS
SW
L1
22µH
GND
R2
1k
LT1931
NFB
SHDN
R
SS
15k
R3
25.5k
R1
1Ω
R4
2.7k
C6
1000pF
C
SS
68nF
C1
4.7µF
16V
C3
1µF
35V
*TOTAL OUTPUT POWER NOT TO EXCEED 3.3W
C1 TO C5: X5R OR X7R
D1, D2: BAV99 OR EQUIVALENT
L1: SUMIDA CR43-220
C5
4.7µF
35V
32
D2
1
1931 TA08
C4
4.7µF
35V
V
OUT1
–33V
100mA*
COM
V
OUT2
–66V
48mA*
C2
1µF
35V
32
D1
1
SLIC Power Supply with –33V and – 68V Outputs, Uses Soft-Start
11
LT1931/LT1931A
1931fa
U
PACKAGE DESCRIPTIO
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SLIC Power Supply with –21.6V and – 65V Outputs, Uses Soft-Start
TYPICAL APPLICATIO S
U
V
IN
V
IN
5V
V
SS
SW
L1
10µH
GND
R2
1k
LT1931
NFB
SHDN
R
SS
15k
R3
16.2k
R1
1Ω
R4
2.7k
C8
1000pF
C1
4.7µF
16V
C
SS
68nF
C3
1µF
35V
C4
1µF
35V
*TOTAL OUTPUT POWER NOT TO EXCEED 1.3W
C1 TO C7: X5R OR X7R
D1, D2: BAV99 OR EQUIVALENT
L1: SUMIDA CR43-100
C7
4.7µF
25V
32
D3
C6
4.7µF
25V
32
1
D2
1
1931 TA09
C5
4.7µF
25V
V
OUT1
–21.6V
48mA*
COM
V
OUT2
–65V
20mA*
C2
1µF
35V
32
D1
1
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20
(NOTE 3)
S5 TSOT-23 0302 REV B
PIN ONE
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 – 0.90
1.00 MAX
0.01 – 0.10
0.20 BSC
0.30 – 0.50 REF
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62
MAX
0.95
REF
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
1.4 MIN
2.62 REF
1.22 REF
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
12
LT1931/LT1931A
1931fa
LT/LT 1005 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
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TM
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Burst Mode operation is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
U
2.2MHz, 12V to –5V Converter Uses Low Profile Coupled Inductor
Efficiency
V
IN
V
IN
12V
V
OUT
–5V
450mA
1931 TA07a
SW
L1A
4.7µH
L1B
4.7µH
D1
GND
LT1931A
C1: TAIYO YUDEN Y5V EMK212F225ZG
C2: 0.1µF 25V X5R
C3: TAIYO YUDEN X5R JMK212BJ475MG
D1: ON SEMICONDUCTOR MBR0520
L1: SUMIDA CLQ4D10-4R7 DRAWING #5382-T039
C1
2.2µF
C3
4.7µF
C2
0.1µF
R2
10k
R1
28.7k
NFB
SHDN
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
55
60
65
70
75
80
100 200 300 400
1931 TA07b
500
P1-P3P4-P6P7-P9P10-P12

LT1931AIS5#TRMPBF

Mfr. #:
Buy LT1931AIS5#TRMPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 1A, -34V, Inverting DC/DC Converter in ThinSOT
Lifecycle:
New from this manufacturer.
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