SC1540A

Features:

Low dropout performance, 1.3V max
Full current rating over line and temperature
Fast transient response
   + 2% total output regulation over line, load and temperature
10A max. quiescent current in shutdown
Three fixed output voltages
Line regulation 0.2% max.
Load regulation 0.4% max.
SO-8 package


Application

Active SCSI termination
Low voltage microcontrollers
Switching power supply post-regulator


Pinout




Specifications

Parameter	Symbol	Maximum	Units
Maximum Input Pin Voltage	VIN, EN	7	V
Power Dissipation	PD	Internally Limited	W
Thermal Resistanc Junction to Case SO-8	JC	47	/W
Thermal Resistance Junction to Ambient SO-8(1)	JA	65	/W
Operating Junction	TJ	0 to 125
Temperature Range Storage Temperature	TSTG	-65 to 150
Range Lead Temperature (Soldering) 10 Sec	TLEAD	260

Notes:
(1) 2 inch square of 1/16" FR-4, double sided, 1 oz.
minimum copper weight.

Description

The SC1540 and SC1540A are high performance low dropout positive voltage regulators designed for use in applications where power management is critical, such as battery powered systems. Additionally, the SC1540(A) provides excellent regulation over varia-tions in line, load and temperature. Outstanding fea-tures include low dropout performance at rated current fast transient response, internal current limiting and thermal shutdown protection of the output device. Avery low quiescent current of 10A in shutdown mode reduces power dissipation. With three voltage options available, the SC1540(A) comes in the popular SO-8 surface mount package.