參數(shù)資料
型號(hào)： RC4391
廠商： Fairchild Semiconductor Corporation
英文描述： Inverting and Step-Down Switching Regulator
中文描述： 反相和降壓型開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 2/22頁(yè)
文件大?。?/td> 153K
代理商： RC4391
PRODUCT SPECIFICATION
RC4391
2
Pin Assignments
LBR
LBD
C
X
GND
V
FB
V
REF
+V
S
L
X
8
65-3471-02
7
6
5
1
2
3
4
Absolute Maximum Ratings
Note:
1. The maximum allowable supply voltage (+V
S
) in inverting applications will be reduced by the value of the negative output
voltage, unless an external power transistor is used in place of Q1.
Thermal Characteristics
Parameter
Internal Power Dissipation
Supply Voltage
1
Operating Temperature
Conditions
Min
Typ
Max
500
+30
70
85
125
150
125
175
375
468
833
300
300
Unit
mW
V
°
C
°
C
°
C
°
C
°
C
°
C
mA
mW
mW
mW
°
C
(Pin 6 to Pin 4 or Pin 6 to Pin 5)
RC4391
RV4391
RM4391
0
-25
-55
-65
Storage Temperature
Junction Temperature
PDIP, SOIC
CerDIP
Peak
PDIP
CerDIP
SOIC
(10 seconds)
Switch Current (I
MAX
)
P
D
T
A
<50C
Lead Soldering Temperature
8-Lead Plastic DIP
—
160
°
C/W
6.25 mW/
°
C
8-Lead Ceramic DIP
45
°
C/W
150
°
C/W
8.33 mW/
°
C
Small Outline SO-8
—
240
°
C/W
4.17 mW/
°
C
Therm. Res
q
JC
Therm. Res.
q
JA
For T
A
>50C Derate at
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
Pin Function Description
Low Battery Resistor (LBR)
Low Battery Detector (LBD)
Timing Capacitor (C
X
)
Ground
External Inductor (L
X
)
+Supply Voltage (+V
S
)
+1.25V Reference Voltage (V
REF
)
Feedback Voltage (V
FB
)
相關(guān)PDF資料
PDF描述
RC4391M Inverting and Step-Down Switching Regulator
RC4391N Inverting and Step-Down Switching Regulator
RC4558 Dual High-Gain Operational Amplifier
RC4558JG DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
RC4558PS DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RC4391M 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Inverting and Step-Down Switching Regulator
RC4391N 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Inverting and Step-Down Switching Regulator
RC4391Z WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
RC4460-34GA4 制造商:Electronic Hardware Corporation (EHC) 功能描述:RC4460-34GA4
RC446-147 制造商: 功能描述: 制造商:undefined 功能描述:
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