Harman Kardon AVR 230, Руководство по обслуживанию

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NJM2391
PIN FUNCTION
1.V
IN
2.GND
3.V
OUT
NJM2391DL1
LOW DROPOUT VOLTAGE REGULATOR
„
GENERAL DESCRIPTION
„
PACKAGE OUTLINE
The NJM2391 is low dropout voltage regulators
featuring high precision voltage.
It is suitable for Notebook PCs, PC cards and hard
disks where 3.3V need to be generated from 5V supply.
A small TO-252 package is adopted for the space
saving.
„
FEATURES
z
Output Current Io(max.)=1A
z
High Precision Output Voltage Vo
±
1%
z
Low Dropout Voltage
Δ
V
I-O
=1.1V typ. At Io=1A
z
Internal Excessive Voltage Protection Circuit
z
Internal Short Circuit Current Limit
z
Internal Thermal Overload Protection
z
Bipolar Technology
z
Package Outline TO-252
„
PIN CONFIGURATION
„
ABSOLUTE MAXIMUM RATINGS (Ta=25
°
C)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage V
+
+10 V
Power Dissipation P
D
TO-252
8 (Tc=25
°
C)
0.8(Ta
≤
25
°
C)
W
Operating Temperature
Topr
−
40 ~ +85
°
C
Storage Temperature Tstg
−
50 ~ +125
°
C
„
OUTPUT VOLTAGE RANK LIST
Device Name V
OUT
NJM2391DL1-25 2.5V
NJM2391DL1-26 2.6V
NJM2391DL1-28 2.85V
NJM2391DL1-03 3.0V
NJM2391DL1-33 3.3V
NJM2391DL1-35 3.5V
NJM2391DL1-05 5.0V
NJM2391DL1
3 1
2
Harman Kardon AVR 365/230V Service Manual
Page 78 of 176