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BA1117FP

Low drop adjustable positive voltage regulator



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BA1117FP pdf
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
„ High supply voltage rejection:
- 75 dB typ. (at 25)
„ Temperature range: -20to 105
„ Designed to use by ceramic capacitors
TO252-3
Typical Application
TO220-3
Description
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).
The device is supplied in: TO252-3 and TO220-3.
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
±1% at 25.
10uF
VIN VOUT
ADJ
V REF
R1
IADJ
R2
22uF
VREF = 1.25 V (Typ.)
IADJ = 60 uA (Typ.)
VO = VREF × (1 + R2 / R1 ) + IADJ × R2
Table1. Device summary
Order codes
TO252-3
TO220-3
BA1117FP-E2
Under development
Output voltage
Adjustable from 1.25 V
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays.
1/12
TSZ02201-0RGR0A600450-1-2
18.Nov.2013 Rev.003



No Preview Available !

BA1117FP pdf
BA1117FP
Diagram
Figure 1. Block diagram
Datasheet
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/12
TSZ02201-0RGR0A600450-1-2
18.Nov.2013 Rev.003



Part Number BA1117FP
Description Low drop adjustable positive voltage regulator
Maker Rohm - Rohm
Total Page 15 Pages
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