KA78RM33. 78RM33 Datasheet

78RM33 KA78RM33. Datasheet pdf. Equivalent

78RM33 Datasheet
Recommendation 78RM33 Datasheet
Part 78RM33
Description KA78RM33
Feature 78RM33; KA78RM33 Low Dropout Voltage Regulator February 2006 KA78RM33 Low Dropout Voltage Regulator Featur.
Manufacture Fairchild Semiconductor
Datasheet
Download 78RM33 Datasheet





Fairchild Semiconductor 78RM33
February 2006
KA78RM33
Low Dropout Voltage Regulator
Features
0.5A/3.3VPOAuCtpKutALoGwEDrDopIoMutEVNolStagIOe RNeSgulator
Low Dropout Voltage (Max. 0.6V)
Over Current Protection, Thermal Shutdown
SOA Protection, Short Circuit Protection
www.DataSheet4U.com
Description
The KA78RM33 is a low-dropout voltage regulator suit-
able for various electronic equipments. It provides con-
stant voltage power source with surface mount type
package (D-PAK). The dropout voltage of KA78RM33 is
below 0.6V in full rated current(0.5A). This regulator has
various functions such as an over current protection, a
thermal shut down and the SOA (Safe operating Area)
protection.
Internal Block Diagram
VIN 1
Current
Generator
Thermal
Shutdown
Protection
Short Circuit
Protection
Bandgap
Reference
Error
Amp.
GND 2
Packages
D-PAK
Q1
SOA
Protection
3 VOUT
Output
Drive
R1
R2
TO-220
2
13
123
1. VIN 2. GND 3. VOUT
©2006 Fairchild Semiconductor Corporation
KA78RM33 Rev. 1.0.4
1
www.fairchildsemi.com



Fairchild Semiconductor 78RM33
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Thermal Resistance Junction-Air
Power Dissipation
Junction Temperature
Operating Temperature
Symbol
VIN
IO
RθJA
Pd
Tj
TOPR
Value
20
0.5
110
Interally limited
150
-25 to +125
Unit
V
A
°C/W
°C
°C
Remark
No Heatsink
www.DataSheet4U.cEomlectrical Characteristics
(VIN = 5V, IO = 0.25A, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Output Voltage
Load Regulation
Line Regulation
Ripple Rejection Ratio
Dropout Voltage
Quiescent Current
Peak Current
Output Noise Voltage
Temperature Coefficient of
Output Voltage
VOUT
RLOAD
RLINE
RR
Vdrop
Iq
IPK
Vn
VOUT/T
IO = 10mA
5mA < IO < 0.5A
4.3V <VIN < 16V
f = 120Hz, VIN = 5V±0.5Vrms
IO = 0.5A
IO = 0A
VIN = 5V
10Hz < f < 100kHz
-25°C < Tj < 125°C, IO = 100mA
Min.
3.22
55
0.5
Typ.
3.3
2
2
5
1
50
-0.2
Max.
3.38
20
20
0.6
10
Unit
V
mV
mV
dB
V
mA
A
µVrms
mV/°C
KA78RM33 Rev. 1.0.4
2
www.fairchildsemi.com



Fairchild Semiconductor 78RM33
Mechanical Dimensions
TO-220 Package
9.90 ±0.20
(8.70)
ø3.60 ±0.10
www.DataSheet4U.com
4.50 ±0.20
1.30
+0.10
–0.05
1.27 ±0.10
2.54TYP
[2.54 ±0.20]
1.52 ±0.10
0.80 ±0.10
2.54TYP
[2.54 ±0.20]
0.50
+0.10
–0.05
2.40 ±0.20
10.00 ±0.20
Dimensions in millimeters
KA78RM33 Rev. 1.0.4
3
www.fairchildsemi.com





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