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부품번호 | LD1084 기능 |
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기능 | 5A low-drop positive voltage regulator adjustable | ||
제조업체 | ST Microelectronics | ||
로고 | |||
전체 16 페이지수
LD1084
5 A low-drop positive voltage regulator adjustable
TO-220
Datasheet - production data
LD1084 quiescent current flows into the load, so
to increase the efficiency. A minimum capacitor of
10 µF is needed for stability.
The device is supplied in TO-220. The on-chip
trimming allows the regulator to reach a very tight
output voltage tolerance, within ± 1% at 25 °C.
Table 1. Device summary
Order code
Output voltage
LD1084V
adjustable
Features
• Typical dropout 1.3 V (at 5 A)
• Three-terminal adjustable output voltage
• Guaranteed output current up to 5 A
• Output tolerance ± 1% at 25 °C and ± 2% in full
temperature range
• Internal power and thermal limit
• Wide operating temperature range -40 °C to
125 °C
• Package available: TO-220
• Pinout compatibility with standard adjustable
VREG
Description
The LD1084 is a low-drop voltage regulator
providing up to 5 A of output current. Dropout is
guaranteed at a maximum of 1.5 V at the
maximum output current, decreasing at lower
loads. The LD1084 is pin-to-pin compatible with
the older 3-terminal adjustable regulators, but it
has better performances in terms of drop and
output tolerance.
Unlike PNP regulators, where a part of the output
current is wasted as quiescent current, the
September 2013
This is information on a product in full production.
DocID9035 Rev 10
1/16
www.st.com
16
Pin configuration
2 Pin configuration
Figure 2. Pin connections (top view)
,1387
287387
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LD1084
4/16 DocID9035 Rev 10
4페이지 LD1084
5 Electrical characteristics
Electrical characteristics
VI = 4.25 V, CI = CO = 10 µF, TA = -40 to 125 °C, unless otherwise specified.
Symbol
Table 4. LD1084 electrical characteristics
Parameter
Test conditions
Min.
Typ. Max.
Unit
Vref Reference voltage (1)
ΔVO Line regulation
ΔVO Load regulation
Vd Dropout voltage
IO(min) Minimum load current
Isc Short-circuit current
Thermal regulation
SVR Supply voltage rejection
IADJ Adjust pin current
ΔIADJ Adjust pin current change(1)
RMS output noise voltage
eN
(% of VO)
S Temperature stability
IO = 10 mA TJ = 25 °C
IO = 10 mA to 3 A, VI = 2.85 to 30 V
IO = 10 mA, VI = 2.85 to 16.5V, TJ =
25 °C
IO = 10 mA, VI = 2.85 to 16.5 V
IO = 10 mA to 5 A, TJ = 25 °C
IO = 0 to 5 A
IO = 5 A
VI = 30 V
VI - VO = 5 V
VI - VO = 25 V
TA = 25 °C, 30 ms pulse
f = 120 Hz, CO = 25 µF,
CADJ = 25 µF, IO = 5 A,
VI = 6.25 ± 3 V
VI = 4.25 V, IO = 10 mA
IO = 10 mA to 5 A,
VI = 2.85 to 16.5 V
TA = 25 °C, f = 10 Hz to 10 kHz
S Long term stability
TA = 125 °C, 1000 hrs
1. See short-circuit current curve for available output current at fixed dropout.
1.237 1.25 1.263
1.225 1.25 1.275
0.015 0.2
0.035 0.2
0.1 0.3
0.2 0.4
1.3 1.5
3 10
5.5 6.5
0.5 0.7
0.003 0.015
60 72
55 120
0.2 5
0.003
0.5
0.5
V
V
%
%
%
%
V
mA
A
A
%/W
dB
μA
μA
%
%
%
DocID9035 Rev 10
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구 성 | 총 16 페이지수 | ||
다운로드 | [ LD1084.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
LD1083 | 7.5A Low Dropout Positive Regulator | HOTCHIP |
LD1084 | 5A low-drop positive voltage regulator adjustable | ST Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |