BA1117FP-E2 ROHM

Low drop adjustable positive voltage regulator BA1117FP Features Low dropout voltage: - 1.2 V typ. (at IO = 1 A, 25) Output current up to 1 A Adjustable version availability (VREF = 1.25 V) Internal current and thermal limit Available in 1% (at 25) and 2% in full temperature range TO252-3 TO220-3 High supply voltage rejection: - 75 dB typ. (at 25) Temperature range: -20 to 105 Designed to use by ceramic capacitors Typical Application VIN VOUT Description VREF R1 10uF 22uF ADJ The BA1117FP is a low drop voltage regulator able to provide up to 1 A of output current, available in adjustable versions (VREF =1.25V). I The device is supplied in: TO252-3 and TO220-3. ADJ R2 Surface mounted packages optimize the thermal characteristics while offering a relevant space saving advantage. High efficiency is assured by NPN pass transistor. Only a very common 22uF minimum capacitor is needed for stability. Chip trimming allows the regulator to reach a very tight reference voltage tolerance, within VREF = 1.25 V (Typ.) 1% at 25. IADJ = 60 uA (Typ.) VO = VREF (1 + R2 / R1 ) + IADJ R2 Table1. Device summary Order codes Output voltage TO252-3 TO220-3 BA1117FP-E2 Under development Adjustable from 1.25 V Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0RGR0A600450-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/12 TSZ2211114001 18.Nov.2013 Rev.003Datasheet BA1117FP Diagram Figure 1. Block diagram www.rohm.com TSZ02201-0RGR0A600450-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/12 TSZ2211115001 18.Nov.2013 Rev.003