參數(shù)資料
型號(hào): TL5001MFK
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 穩(wěn)壓器
英文描述: 0.1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CQCC20
封裝: CERAMIC, LCC-20
文件頁(yè)數(shù): 9/31頁(yè)
文件大?。?/td> 745K
代理商: TL5001MFK
TL5001, TL5001A
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS084F – APRIL 1994 – REVISED JANUARY 2002
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
U1
TL5001/A
FB
COMP
VO
DTC
RT
GND
C1
100
F
10 V
VI
5 V
+
R1
470
SCP
VCC
L1
20
H
C2
100
F
10 V
3.3 V
GND
+
CR1
MBRS140T3
Q1
TPS1101
C6
0.012
F
R4
5.1 k
R5
7.50 k
1%
R2
56 k
R3
43 k
R6
3.24 k
1%
C5
0.1
F
C4
1
F
C3
0.1
F
GND
8
7
6
5
2
1
3
4
Partial Bill of Materials:
U1
TL5001/A
Texas Instruments
Q1
TPS1101
Texas Instruments
LI
CTX20-1 or
Coiltronics
23 turns of #28 wire on
Micrometals No. T50-26B core
C1
TPSD107M010R0100
AVX
C2
TPSD107M010R0100
AVX
CR1
MBRS140T3
Motorola
R7
2.0 k
C7
0.0047
F
+
NOTES: A. Frequency = 200 kHz
B. Duty cycle = 90% max
C. Soft-start time constant (TC) = 5.6 ms
D. SCP TC = 70 msA
Figure 21. Step-Down Converter
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