BA1117FP
BA1117FP is Low drop adjustable positive voltage regulator manufactured by ROHM.
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 d B typ. (at 25℃)
- Temperature range: -20℃ to 105℃
- Designed to use by ceramic capacitors
TO252-3
TO220-3
- Typical Application
V IN
10u F
- 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 mon 22u F minimum capacitor is needed for stability. Chip trimming allows the regulator to reach a very tight reference voltage tolerance, within ±1% at 25℃.
V OUT
V REF
IADJ
R1
22u F
R2
VREF = 1.25 V (Typ.) IADJ = 60 u A (Typ.) VO = VREF × (1 + R2 / R1 ) + IADJ × R2
Table1.
Device summary
Order codes TO220-3 Under development Output voltage Adjustable from 1.25 V
TO252-3 BA1117FP-E2
○Product structure：Silicon monolithic integrated circuit .rohm. © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111･14･001
○This product is not designed protection against radioactive rays.
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TSZ02201-0RGR0A600450-1-2 18.Nov.2013 Rev.003
- Diagram
Figure 1.
Block diagram
.rohm. © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001
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TSZ02201-0RGR0A600450-1-2 18.Nov.2013...
