UPC337 Datasheet, PDF (1/8 Pages) NEC – 3-TERMINAL NEGATIVE ADJUSTABLE REGULATOR

DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC337
3-TERMINAL NEGATIVE ADJUSTABLE REGULATOR
The µPC337 is an adjustable 3-terminal negative voltage regulator, which has 1.5 A capable for the output
current. The output voltage can be set any value between –1.3 V and –30 V by two external resistors.
FEATURES
• Output current excess of 1.5 A
• On-chip some protection circuit (over current protec-
tion, SOA protection and thermal shut down).
PIN CONFIGURATION (Marking Side)
ORDERING INFORMATION
Part Number
Package
µPC337HF 3-pin plastic SIP (MP-45G) (isolated TO-220)
123
1 : ADJ
2 : INPUT
3 : OUTPUT
EQUIVALENT CIRCUIT
Q13 R22
Q12
Q14
R13
R41
Q1
R1
Q3
Q2
Q4
R2
R42
R4
Q8
Q5
D4 _R23
D5
R24 ^D1
R9
D2
C1
R8
R5
C2
C3
R6
R7
Q7
Q6
R3
D7
R36
Q28
Q29
ADJ
OUTPUT
R14
R17
Q15
R15
R16
Q22
Q19 _{Q21 R21}
Q18
Q20
D6
Q16 ^Q17
R19
R18
R20
R25
D3
Q9
R26
R28
Q24
R29
Q23
C4
R27
Q30
R37
Q31
C5 _R30
R39
Q25 _R38
Q10 Q11
R31 R32
R10 ^R11
Q26
R35
R33
Q27
R34
R40
INPUT
The information in this document is subject to change without notice.
Document No. G13783EJ2V0DS00 (2nd edition)
(Previous No. IN-1878)
The mark shows major revised points.
Date Published October 1998 N CP(K)
Printed in Japan
©
1986