- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98282 > TPS5430MDDAREPG4 (TEXAS INSTRUMENTS INC) 8.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | TPS5430MDDAREPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 8.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 9/28頁 |
| 文件大小： | 846K |
| 代理商： | TPS5430MDDAREPG4 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
VIN10 24V
-
C1
4.7 F
m
L1
15 H
m
R1
10kW
R2
5.9kW
R3
549 W
C6
1500pF
U1
TPS5430DDA
VIN
GND
VSNS
PH
BOOT
PwPd
EN
3.3V
VOUT
C2
0.01 F
m
D1
MRBS340
C3
100 F
m
C7
0.1 F
m
C4
150pF
VIN
7
1
2
4
5
8
3
6
9
ENA
NC
C
(MIN)
O
≥
1
2
(2
×7000)
L
π
O
×
(13)
F
=
LC
1
2
L
π
O
×C
(EFF)
√
(14)
www.ti.com................................................................................................................................................................................................... SLVS911 – MARCH 2009
Circuit Using Ceramic Output Filter Capacitors
Figure 14 shows an application circuit using all ceramic capacitors for the input and output filters, which
generates a 3.3-V output from a 10-V to 24-V input. The design procedure is similar to those given for the design
example, except for the selection of the output filter capacitor values and the design of the additional
compensation components required to stabilize the circuit.
Figure 14. Ceramic Output Filter Capacitors Circuit
Output Filter Component Selection
Using Equation 11, the minimum inductor value is 12
H. A value of 15 H is chosen for this design.
When using ceramic output filter capacitors, the recommended LC resonant frequency should be no more than
7 kHz. Since the output inductor is already selected at 15
H, this limits the minimum output capacitor value to:
The minimum capacitor value is calculated to be 34
F. For this circuit a larger value of capacitor yields better
transient response. A single 100-
F output capacitor is used for C3. It is important to note that the actual
capacitance of ceramic capacitors decreases with applied voltage. In this example, the output voltage is set to
3.3 V, minimizing this effect.
External Compensation Network
When using ceramic output capacitors, additional circuitry is required to stabilize the closed loop system. For this
circuit, the external components are R3, C4, C6, and C7. To determine the value of these components, first
calculate the LC resonant frequency of the output filter:
For this example, the effective resonant frequency is calculated as 4109 Hz.
Copyright 2009, Texas Instruments Incorporated
17
Product Folder Link(s): TPS5430-EP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS54310MPWPREP | 6 A SWITCHING REGULATOR, 775 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54310PWPRG4 | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54320RHLR | SWITCHING REGULATOR, 1320 kHz SWITCHING FREQ-MAX, PQCC14 |
| TPS54320RHL | SWITCHING REGULATOR, PQCC14 |
| TPS54327DDAR | 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS5430-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT CONVERTER |
| TPS5430QDDARQ1 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3A Wide-Input-Range Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS5431 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT⑩ CONVERTER WITH DISABLED SINKING DURING START-UP |
| TPS54310 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs |
| TPS54310-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-V TO 6-V INPUT, 3-A OUTPUT,SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs(SWIFT?) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。