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SC1540ACS-1.8 Datasheet(PDF) 1 Page - Semtech Corporation |
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SC1540ACS-1.8 Datasheet(HTML) 1 Page - Semtech Corporation |
1 / 4 page SC1540 SC1540A © 2000 SEMTECH CORP. 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE PRELIMINARY - May 1, 2000 652 MITCHELL ROAD NEWBURY PARK CA 91320 1 Notes: (1) 2 inch square of 1/16” FR-4, double sided, 1 oz. minimum copper weight. ABSOLUTE MAXIMUM RATINGS 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. A very low quiescent current of 10µA in shutdown mode reduces power dissipation. With three voltage options available, the SC1540(A) comes in the popular SO-8 surface mount package. APPLICATIONS •= Active SCSI termination •= Low voltage microcontrollers •= Switching power supply post-regulator Parameter Symbol Maximum Units Maximum Input Pin Voltage VIN, EN 7 V Power Dissipation P D Internally Limited W Thermal Resistance Junction to Case SO-8 θ JC 47 °C/W Thermal Resistance Junction to Ambient SO-8 (1) θ JA 65 °C/W Operating Junction Temperature Range T J 0 to 125 °C Storage Temperature Range T STG -65 to 150 °C Lead Temperature (Soldering) 10 Sec T LEAD 260 °C ORDERING INFORMATION Notes: (1) Where X.X denotes voltage options. Available voltages are: 1.8V, 2.5V and 3.3V. Contact factory for additional voltage options. (2) Only available in tape and reel packaging (suffix ‘.TR’) e.g. SC1540CS-X.X-.TR. DEVICE (1)(2) OUTPUT CURRENT PACKAGE SC1540CS-X.X 300mA SO-8 SC1540ACS-X.X 500mA SO-8 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com 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 •= 10µA max. quiescent current in shutdown •= Three fixed output voltages •= Line regulation 0.2% max. •= Load regulation 0.4% max. •= SO-8 package BLOCK DIAGRAM PIN CONFIGURATIONS SO-8 Top View |
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