lt1038mk Linear Technology Corporation, lt1038mk Datasheet - Page 7

• Manufacturer Part Number: lt1038mk
• Description: 10a Positive Adjustable Voltage Regulator
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIO S
SCHE ATIC DIAGRA
RETURN
V
*C1 IMPROVES RIPPLE
V
1 F
IN
REJECTION. X
BE SMALL COMPARED TO R2.
IN
Improving Ripple Rejection
+
V
IN
W
V
LT1038
IN
ADJ
Q2
C
LT1038
SHOULD
30k
Q1
ADJ
V
160k
OUT
Q3
V
OUT
Q4
180
310
Q5
130
Remote Sensing
Q6
121
365
R1
121
1%
R2
365
1%
25
5V
Q7
310
4k
Q8
+
(MAX DROP 300mV)
Q9
6
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.
1038 TA05
C1*
10 F
1
100pF
4.1k
190
12.4k
R
LM301A
p
U
W
7
V
IN
Q10
8
6k
Q12 Q13
–
+
4
Q11
10k
50
2
3
+
5 F
25
1k
Q14
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
†
††
V
OPTIONAL—IMPROVES TRANSIENT RESPONSE
1.2V to 25V Adjustable Regulator
IN
V
5.1k
OUT
+
Q16
= 1.25V (1 + R2/R1)
R
Q15
L
RETURN
30pF
5V
OUTPUT
C1*
1 F
5.6k
V
3k
C1
1038 TA08
IN
LT1038
ADJ
20k
30pF
R2
5k
V
C2
OUT
Q18
Q17
R1
121
Temperature Compensated Lead Acid Battery Charger
12k
Q19
ADJ
+
*LOAD ON BATTERY 200 A
1.6k
WHEN NOT CHARGING
Q20
2.4k
V
IN
C2
1 F
V
OUT
†
1038 TA06
Q21
††
25k
10A
Q22
6.7k
CHARGE
V
2N3906
IN
Q23
LT1038
C3
5pF
16k
ADJ
12k
Q24
TTL
5V Regulator with Shutdown
V
2N3904
IN
50
Q25
V
+
OUT
400
1 F
200
Q26
1k
300
THERMALLY
120
COUPLED
160
V
IN
121
1%
1k
LT1038
Q27
ADJ
2N3904
Q28
V
10k*
2k*
50k*
0.005
OUT
V
3
LT1038
V
IN
OUT
18k
160
D1
6.3V
D2
6.3V
1038 SD
1038 TA09
+
–
1038 TA07
121
1%
365
1%
12V
5V
7