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参数资料
型号： TPS40077PWPRG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装： GREEN, PLASTIC, HTSSOP-16
文件页数： 27/43页
文件大小： 847K
代理商： TPS40077PWPRG4
TPS40077
www.ti.com ..................................................................................................................................................... SLUS714D – JANUARY 2007 – REVISED APRIL 2009
5. The required gain of 16.9 dB and Equation 51 sets the value for RPZ2. RPZ2 = 21.5 k.
6. CZ2 is calculated using Equation 55 and the desired frequency for the second zero, CZ2 = 1.7 nF, or using
standard values, 1.8 nF.
7. Finally, CP2 is calculated using the second pole frequency and Equation 53; CP2 = 47 pF.
Using these values, the simulated results are 57° of phase margin at 54 kHz.
Table 4. Bill of Materials
RefDes
Count
Value
Description
Size
Part Number
Mfr
C1
1
470
F
Capacitor, aluminum, 470-
F, 25-V, 20%
0.457 x 0.406
EEVFK1E471P
Panasonic
C2, C10
2
0.1
F
Capacitor, ceramic, 25-V, X7R, 20%
0603
Std
Vishay
C3
1
15 nF
Capacitor, ceramic, 25-V, X7R 20%
0603
Std
Vishay
C4
1
47 pF
Capacitor, ceramic, 25-V, X7R, 20%
0603
Std
Vishay
C5
1
1.8 nF
Capacitor, ceramic, 25-V, X7R 20%
0603
Std
Vishay
C6
1
680 pF
Capacitor, ceramic, 25-V, X7R 20%
0603
Std
Vishay
C7
1
51 pF
Capacitor, ceramic, 25-V, COG 20%
0603
Std
Vishay
C8, C11
2
0.1
F
Capacitor, ceramic, 25-V, X7R, 20%
0603
Std
Vishay
C9
1
F
Capacitor, ceramic, 25-V, X7R, 20%
0805
Std
Vishay
C12, C14,
3
22
F
Capacitor, ceramic, 22-
F, 16-V, X5R, 20% 1812
C4532X5R1C226MT
TDK
C15
C13
1
2.2 nF
Capacitor, ceramic, 25-V, X7R, 20%
0603
Std
Vishay
C16
1
470
F
Capacitor, aluminum, SM, 6.3-V, 300-m
8 mm × 10
Std
Panasonic
(FC series)
mm
C17
1
47
F
Capacitor, ceramic, 47-uF, 6.3-V, X5R, 20%
1812
C4532X5R0J476MT
TDK
D1
1
BAT54
Diode, Schottky, 200-mA, 30-V
SOT23
BAT54
Vishay
J1, J2
2
ED1609-ND
Terminal block, 2-pin, 15-A, 5,1-mm
0.40 × 0.35
ED1609
OST
J3
1
PTC36SAAN
Header, 2-pin, 100-mil spacing, (36-pin
0.100 × 2
PTC36SAAN
Sullins
strip)
L1
1
2.5
H
Inductor, SMT, 2.5
H, 16.5-A, 3.4- m
0.515 × 0.516
MLC1550-252ML
Coilcraft
Q1
1
Si7860DP
MOSFET, N-channel, 30-V, 18-A, 8.0-m
PWRPAK
Si7860DP
Vishay
S0-8
Q2
1
Si7336ADP
MOSFET, N-channel, 30-V, 18-A, 40-m
PWRPAK
Si7886ADP
Vishay
S0-8
Q3
1
FDV301N
MOSFET, N-channel, 25-V, 220-mA, 5-
SOT23
FDV301N
Fairchild
R1
1
10 k
Resistor, chip, 1/16-W, 20%
0603
Std
R2, R6
2
165 k
Resistor, Chip, 1/16-W, 20%
0603
Std
R3
1
32.4 k
Resistor, chip, 1/16-W, 20%
0603
Std
R4, R11
2
0
Resistor, chip, 1/16-W, 20%
0603
Std
R5
1
21.5 k
Resistor, chip, 1/16-W, 20%
0603
Std
R7
1
51 k
Resistor, chip, 1/16-W, 20%
0603
Std
R8
1
3.3 k
Resistor, chip, 1/16-W, 20%
0603
Std
R9
1
1.8 k
Resistor, chip, 1/16-W, 20%
0603
Std
R10
1
330 k
Resistor, chip, 1/16-W, 20%
0603
Std
R12
1
51
Resistor, chip, 1/16-W, 20%
0603
Std
R13
1
1 k
Resistor, chip, 1/16-W, 20%
0603
Std
U1
1
TPS40077PWP
IC, Texas Instruments
PWP16
TPS40077PWP
TI
Copyright 2007–2009, Texas Instruments Incorporated
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Product Folder Link(s) :TPS40077
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