EZ1581

Features:

• 540mV dropout @ 7A in dual supply mode (EZ1580)
• Remote sense operation
• Fast transient response
• 0.5% initial accuracy
• 5 Pin TO-220 and TO-263 packages


Application

• Microprocessor supplies
• Split plane microprocessor supplies
• Pentium® Processor P54C and P55C
• PowerPC™ 603/604EV
• AMD5K86™, AMD K6


Pinout




Specifications

Parameter	Symbol	Maximum
Input Voltage VPOWER VCONTROL	VIN	7 13.2	V
Power Dissipation	PD	Internally Limited	W
Thermal Resistance Junction to Case EZ1580/1 TO-220 EZ1580/1 TO-263 EZ1582/3 TO-220 EZ1582/3 TO-263	JC	2 2 3 3	°C/W
Thermal Resistance Junction to Ambient EZ158X TO-220 EZ158X TO-263	JA	50 60	°C/W
Operating Junction Temperature Range	TJ	0 to 125	°C
Storage Temperature Range	TSTG	-65 to 150	°C
Lead Temperature (Soldering) 10 Sec	TLEAD	260	°C

Description

The EZ158X family of high performance positive voltage regulators are designed for use in applications requiring very low dropout voltage at 7, 5, 3 and 1.5 amps. When supplying 2.5V on motherboards where both 5V and 3.3V supplies are available, the superior dropout characteristics of the EZ158X result in reduced heat dissipation compared to regular LDOs, thus allowing heat sink size reduction. Additionally, the EZ158X provides excellent regulation over variations in line, load and temperature. Remote sense operation allows compensating for trace, connector and other resistive losses.

Outstanding features include very low dropout performance at rated current, fast transient response, remote sense, internal current limiting, thermal shutdown and safe operating area protection of the output device. The EZ158X is a five terminal adjustable voltage regulator available in the popular 5 pin TO-220 and TO-263 plastic packages.