KA78RM33TSTU

KA78RM33TSTU Datasheet


KA78RM33 Low Dropout Voltage Regulator

Part Datasheet
KA78RM33TSTU KA78RM33TSTU KA78RM33TSTU (pdf)
Related Parts Information
KA78RM33TU KA78RM33TU KA78RM33TU
KA78RM33 KA78RM33 KA78RM33
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KA78RM33 Low Dropout Voltage Regulator

February 2006

KA78RM33 Low Dropout Voltage Regulator
• RNeSgulator
• Low Dropout Voltage Max. 0.6V
• Over Current Protection, Thermal Shutdown
• SOA Protection, Short Circuit Protection

The KA78RM33 is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant 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

SOA Protection
3 VOUT

R1 Output Drive

TO-220

VIN GND VOUT
2006 Fairchild Semiconductor Corporation

KA78RM33 Low Dropout Voltage Regulator

Absolute Maximum Ratings

Parameter Input Voltage Output Current Thermal Resistance Junction-Air Power Dissipation Junction Temperature Operating Temperature

Symbol VIN IO R JA Pd Tj TOPR

Value 20 110

Interally limited 150
-25 to +125

Unit V A
°C/W °C °C

Remark

No Heatsink

Electrical Characteristics

VIN = 5V, IO = 0.25A, TA = 25°C, unless otherwise

Parameter

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

Vdrop Iq IPK Vn

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
Ordering Information

Product Number KA78RM33

KA78RM33TU KA78RM33TSTU KA78RM33RTF KA78RM33RTM

Package TO-220

D-PAK

Packing Bulk Rail

Rail Short Leads Tape & Reel 2K/reel Tape & Reel 2.5K/reel

Operating Temperature
-25°C to +125°C

KA78RM33 Low Dropout Voltage Regulator

TRADEMARKS

The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.

ACEx

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DOME

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ImpliedDisconnect

FACT

IntelliMAX

FACT Quiet Series

Across the board. Around the world. The Power

Programmable Active Droop

DISCLAIMER

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SuperSOT -6 SuperSOT -8 SyncFET TCM TINYOPTO TruTranslation UHC UniFET VCX

Wire

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
More datasheets: HFE4383-522 | BFR 181T E6327 | DA15SV | CA3102R20-22PF80 | MAX72463B+ | BSO150N03 | MUR1620CT | 2403 260 00041 | KA78RM33TU | KA78RM33


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Datasheet ID: KA78RM33TSTU 634133