SC4216_09

SC4216 Very Low Input /Very Low Dropout 3 Amp Regulator With Enable POWER MANAGEMENT Features Input Voltage as low as 1.45V 500mV dropout @ 3A Adjustable output from 0.5V to 3.8V Over current and over temperature protection Enable pin 10µA quiescent current in shutdown Full industrial temperature range Available in SOIC-8-EDP Lead-free package, fully WEEE and RoHS compliant Description The SC4216 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 3 amperes. It operates with a Vin as low as 1.45V, with output voltage programmable as low as 0.5V. The SC4216 features ultra low dropout, ideal for applications where Vout is very close to Vin. Additionally, the SC4216 has an enable pin to further reduce power dissipation while shut- down. The SC4216 provides excellent regulation over variations in line, load and temperature. The SC4216 is available in the SOIC-8-EDP (Exposed Die Pad) package. The output voltage can be set via an external divider or to xed settings of 0.5V and 1.2V depending on how the FB pin is con gured. Applications Telecom/Networking cards Motherboards/Peripheral cards Industrial applications Wireless infrastructure Set top boxes Medical equipment Notebook computers Battery powered systems Typical Application Circuit January 28, 2009 © 2009 Semtech Corporation 1 SC4216 Pin Con guration Ordering Information Device SC4216STRT(1)(2) SC4216EVB Package SOIC-8-EDP Evaluation Board Notes: (1) Available in tape and reel only. A reel contains 2,500 devices. (2) Available in lead-free package only. Device is WEEE and RoHS compliant. Marking Information 2 SC4216 Absolute Maximum Ratings VIN, EN, VO, FB to GND (V) . . . . . . . . . . . . . . . . . . -0.3 to +7.0 Power Dissipation . . . . . . . . . . . . . . . . . . . . . Internally Limited ESD Protection Level (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 (1) Recommended Operating Conditions VIN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.45