STMICROELECTRONICS GS

GS-R4840N
44W NEGATIVE SWITCHING REGULATOR
Vin
Vout
Iout
-43 to -60 V
40 V
1,08 A
Type
GS-R4840N
DESCRIPTION
The GS-R4840N is a negative input, negative output switching voltage regulator that can provide up
to 44W output power without input to output isolation.
ELECTRICAL CHARACTERISTICS (Tamb.= 25° C unless otherwise specified)
Symbol
Parameter
Test Conditions
Vi
Input Voltage
Io = 1.08A
Vni
Input noise
(CCITTP53)
Vi = -48V
Io = 1A
li
Input Current
Vi = -48V
Io = 1.08A
Vo
Output Voltage
Vi = -43 to -60V
Io = 0 to 1.08A
Vor
Output Ripple
Voltage
Vi = -48V
Io = 1.08A
Vno
Output noise
(CCITTP53)
Vi = -48V
Io = 1A
Iosc
Output Current Limit
Vi = -48V
fs
Switching Frequency
η
Efficiency
Vi= -48V
Min
Typ
Max
Unit
-43
-48
-60
V
1
mV
-38.5
Io = 1.08A
-40.5
-1
A
-42.5
V
100
mVpp
1
mV
-1.6
A
50
kHz
93
%
Top
Operating
Temperature Range
0
+70
°C
Tstg
Storage Temperature
Range
-20
+85
°C
December 1993
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GS-R4840N
CONNECTION DIAGRAM AND MECHANICAL DATA
Package H. Dimensions in mm.
Note: Pins 1 and 4 are internally connected
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
 1994 SGS-THOMSON Microelectronics – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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