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TL499ACP 데이터시트(PDF) 7 Page - Texas Instruments

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부품명 TL499ACP
상세설명  Wide-Range Power-Supply Controllers
Download  19 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

TL499ACP 데이터시트(HTML) 7 Page - Texas Instruments

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TL499A
L = 50 µH
SERIES IN1
SW REG IN2
RCL = 500 Ω
OUTPUT
CF = 470 µF
RE1
RE2 = 4.7 kΩ
CP = 0.01 µF
SERIES IN1
SW REG IN2
REF
SW CURRENT
CTRL
OUTPUT
SW IN
GND (PWR)
GND
+
1
3
8
7
6
5
8
1
2
3
4
TL499A
www.ti.com
SLVS029H – JANUARY 1984 – REVISED NOVEMBER 2015
8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
One or two power sources will be regulated to an output voltage set by two feedback resistors.
8.2 Typical Application
Figure 3 shows the basic configuration of the two power source voltage regulator
Figure 3. TL499A Basic Configuration
8.2.1 Design Requirements
Provide one or more of the following power sources:
SERIES IN1 voltage greater than OUTPUT voltage by more than dropout voltage
SW REG IN2 voltage less than OUTPUT voltage
Select RCL value based on Table 1 through Table 5.
Table 1. Maximum Output Current vs Input and Output Voltages for Step-Up Switching Regulator With
RCL = 150 Ω
SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2) (V)
OUTPUT
1.1
1.2
1.3
1.5
1.7
2
2.5
3
5
6
9
VOLTAGE (V)
OUTPUT CURRENT (mA)
30
65
90
25
50
80
100
20
20
25
30
85
100
100
15
15
20
30
45
55
100
100
100
12
10
15
20
25
30
40
55
70
100
100
100
10
15
20
25
30
35
45
65
80
100
100
9
20
25
25
35
40
50
70
90
100
100
6
30
35
40
45
55
75
95
100
Copyright © 1984–2015, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: TL499A


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