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부품번호 | BA1117FP 기능 |
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기능 | Low drop adjustable positive voltage regulator | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 15 페이지수
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: -20℃ to 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 structure:Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
1/12
TSZ02201-0RGR0A600450-1-2
18.Nov.2013 Rev.003
BA1117FP
●Maximum ratings
Datasheet
Table 2. Absolute maximum ratings
Symbol
Parameter
VIN DC input voltage
PD Power dissipation
TSTG
Storage temperature range
TOP Operating junction temperature range
Value
15
1.2(Note3)
-55 to +150
-20 to +105
Unit
V
W
℃
℃
Note2: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied. Beyond the above suggested
max. power dissipation, a short-circuit may permanently damage the device.
Note3: In case Ta≧25℃(70mm×70mm×1.6mm when mounted on a glass epoxy board) is reduced by 9.6mW/℃.
Table 3. Thermal data
Symbol
RthJA
Parameter
Thermal resistance junction-ambient
TO252-3
104.2
TO220-3
67.5
Unit
℃/W
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/12
TSZ02201-0RGR0A600450-1-2
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4페이지 BA1117FP
●Electrical characteristics (reference data)
Datasheet
0
-0.05
-0.1
-0.15
-0.2
-0.25
-0.3
-0.35
-25
IO = 1 A
0 25 50 75 100
Temperature [℃]
Figure 7. Load regulation
125
100
90
80
70
60
50
40
30
20
10
0
-25
0 25 50 75 100
Temperature [℃]
Figure 8. Adjustment pin current
125
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
IO [A]
Figure 9. Load regulation vs VO
Vo:DC : 1.5 V
AC : 50 mV/DIV
IO : 500 mA/DIV
t : 4 us/DIV
Figure 10. Load Transient Response
(0→0.5A)
Co=22µF
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
7/12
TSZ02201-0RGR0A600450-1-2
18.Nov.2013 Rev.003
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부품번호 | 상세설명 및 기능 | 제조사 |
BA1117FP | Low drop adjustable positive voltage regulator | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |