KA78RM33

Number of Outputs : 1
Maximum Operating Temperature : + 125 C
Output Type : Fixed
Mounting Style : Through Hole
Package / Case : TO-220
Output Voltage : 3.3 V
Load Regulation : 20 mV
Output Current : 1 A
Input Voltage MAX : 20 V
Dropout Voltage (Max) : 0.6 V


Features:

• 0.5A / 3.3V Output low dropout voltage regulator
• Low dropout voltage (Max. 0.6V)
• Over current protection, Thermal shutdown
• SOA protection, Shortcircuit protection




Specifications

Parameter	Symbol	Value	Unit	Remark
Supply Voltage	VIN	20	V	-
Output current	IO	0.5	A	-
Thermal Resistance Junction-Air	RJA	110	°C/W	No Heatsink
Power Dissipation	PD	Interally limited	-	-
Junction Temperature	Tj	150	°C	-
Operating temperature	TOPR	-25 to 125	°C	-

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
KA78RM33RTF	Full Production	RoHS Compliant	$0.398	TO-252(DPAK)	2	TAPE REEL	TBD	Line 1: KA78 Line 2: RM33 Line 3: &3&K
KA78RM33RTM	Full Production	RoHS Compliant	$0.332	TO-252(DPAK)	2	TAPE REEL	TBD	Line 1: KA78 Line 2: RM33 Line 3: &3&K

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product KA78RM33 is available. Click here for more information .

Description

The KA78RM33 is a low-dropout voltage regulator suitable for various electronic equipment. It provide constant voltage power source with surface mount type package (D-PAK). dropout voltage of KA78RM33 is below 0.6V in full rated current(0.5A). This regulator has various function such as over current protection, thermal shut down and SOA (Safe operating Area) protection.

Parameters:

Technical/Catalog Information	KA78RM33
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	TO-220
Packaging	Bulk
Regulator Topology	Positive Fixed
Current - Output	500mA
Voltage - Output	3.3V
Operating Temperature	-25°C ~ 125°C
Voltage - Input	5 ~ 20 V
Number of Regulators	1
Current - Limit (Min)	500mA
Current Short Circuit (Isc)	-
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	KA78RM33 KA78RM33