전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

LM138K 데이터시트(PDF) 5 Page - Linear Technology

부품명 LM138K
상세설명  5A Positive Adjustable Voltage Regulator
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LM138K 데이터시트(HTML) 5 Page - Linear Technology

  LM138K Datasheet HTML 1Page - Linear Technology LM138K Datasheet HTML 2Page - Linear Technology LM138K Datasheet HTML 3Page - Linear Technology LM138K Datasheet HTML 4Page - Linear Technology LM138K Datasheet HTML 5Page - Linear Technology LM138K Datasheet HTML 6Page - Linear Technology LM138K Datasheet HTML 7Page - Linear Technology LM138K Datasheet HTML 8Page - Linear Technology LM138K Datasheet HTML 9Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
5
LT138A/LT338A
LM138/LM338
TYPICAL PERFOR A CE CHARACTERISTICS
Current Limit
Current Limit
Current Limit
INPUT-OUTPUT DIFFERENTIAL (V)
0
8
12
40
138A/338A G10
4
0
10
20
30
16
PEAK CURRENT LIMIT
DC CURRENT LIMIT
TCASE = 25°C
PRELOAD = 0A
PRELOAD = 1A
PRELOAD = 5A
TIME (ms)
0.1
8
10
12
14
1
10
100
138A/338A G11
6
4
2
0
PRELOAD = 0A
PRELOAD = 5A
VIN = 10V
VOUT = 5V
TCASE = 25°C
TIME (ms)
0.1
8
10
12
14
1
10
100
138A/338A G12
6
4
2
0
PRELOAD CURRENT = 0
TCASE = 25°C
VIN – VOUT = 10V
VIN – VOUT = 15V
VIN – VOUT = 20V
VIN – VOUT = 30V
Line Transient Response
TIME (
µs)
0
0
0.5
–1.5
–1.0
– 0.5
20
30
1.5
138A/338A G13
1.0
10
40
0
0.5
1.0
CL = 1µF
CL = 10µF
COUT = 0
CADJ = 0
VOUT = 10V
IOUT = 50mA
TJ = 25°C
Load Transient Response
TIME (
µs)
0
2
6
–3
–2
3
0
20
40
138A/338A G14
4
1
2
–1
010
30
VIN = 15V
VOUT = 10V
TCASE = 25°C
PRELOAD = 100mA
CL = 1µF
CADJ = 10µF
CL = 0
CADJ = 0
APPLICATIONS INFORMATION
General
The LT138A develops a 1.25V reference voltage between
the output and the adjustable terminal (see Figure 1). By
placing a resistor, R1, between these two terminals, a con-
stant current is caused to flow through R1 and down through
R2 to set the overall output voltage. Normally this current
is the specified minimum load current of 5mA or 10mA.
Because IADJ is very small and constant when compared
with the current through R1, it represents a small error and
can usually be ignored. It is easily seen from the output
voltage equation, that even if the resistors were of exact
value, the accuracy of the output is limited by the accuracy
of VREF. Earlier adjustable regulators had a reference
tolerance of
±4% which is dangerously close to the ±5%
supply tolerance required in many logic and analog sys-
tems. Further, even 1% resistors can drift 0.01%/
°C, add-
ing additional error to the output voltage tolerance.
Figure 1. Basic Adjustable Regulator
LT338A
VIN
R1
138A/338A F01
VOUT
IADJ
50
µA
ADJ
VREF
VOUT
VIN
R2
VOUT = VREF
R2
R1
1 +
+ IADJ • R2
()
+


유사한 부품 번호 - LM138K

제조업체부품명데이터시트상세설명
logo
National Semiconductor ...
LM138K NSC-LM138K Datasheet
396Kb / 16P
   5-Amp Adjustable Regulators
logo
STMicroelectronics
LM138K STMICROELECTRONICS-LM138K Datasheet
186Kb / 12P
   THREE-TERMINAL 5 A ADJUSTABLE VOLTAGE REGULATORS
logo
Linear Technology
LM138K LINER-LM138K Datasheet
148Kb / 12P
   5A Positive Adjustable Voltage Regulator
logo
STMicroelectronics
LM138K STMICROELECTRONICS-LM138K Datasheet
1Mb / 23P
   Three-terminal 5 A adjustable voltage regulators
LM138K STMICROELECTRONICS-LM138K Datasheet
1Mb / 23P
   Three-terminal 5 A adjustable voltage regulators
More results

유사한 설명 - LM138K

제조업체부품명데이터시트상세설명
logo
Linear Technology
LT138A LINER-LT138A_15 Datasheet
225Kb / 14P
   5A Positive Adjustable Voltage Regulator
LT338A LINER-LT338A_15 Datasheet
225Kb / 14P
   5A Positive Adjustable Voltage Regulator
LT138A LINER-LT138A_01 Datasheet
148Kb / 12P
   5A Positive Adjustable Voltage Regulator
LM138 LINER-LM138_15 Datasheet
225Kb / 14P
   5A Positive Adjustable Voltage Regulator
LM338 LINER-LM338_15 Datasheet
225Kb / 14P
   5A Positive Adjustable Voltage Regulator
logo
Vishay Siliconix
GS1084 VISHAY-GS1084 Datasheet
57Kb / 6P
   5A Low Dropout Positive Adjustable Regulator
26-Mar-02
logo
Analog Intergrations Co...
AIC1084 AIC-AIC1084 Datasheet
104Kb / 6P
   5A Low Dropout Positive Adjustable Regulator
logo
International Rectifier
IRU1050 IRF-IRU1050 Datasheet
105Kb / 12P
   5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
logo
Linear Technology
RH1084MK LINER-RH1084MK_15 Datasheet
87Kb / 2P
   5A Low Dropout Positive Adjustable Regulator
logo
UNISEM
US1050 UNISEM-US1050 Datasheet
52Kb / 7P
   5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com