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參數(shù)資料
| 型號(hào)： | TPS51113DRCR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件頁(yè)數(shù)： | 9/26頁(yè) |
| 文件大小： | 2137K |
| 代理商： | TPS51113DRCR |
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1
2
3
4
10
9
8
7
PGOOD
VOS
FB
COMP_EN
BOOT
SW
HDRV
LDRV_OC
TPS51113
5
6
VDD
GND
11
R6
47 kW
C4
1 mF
R4
10 kW
R1
2 kW
R3
130 W
C3
8.2 nF
D1
MBR0530Tx
C5
0.1 mF
V
OUT
C2
3.9 nF
R2
2.7 kW
C1
22 nF
Enable
R5
10 kW
R
BIAS
2 kW
R
OC
7 kW
L1
1.5 mH
V
IN
Q2
BSC079N03S
C6
470 mF
C7
47 mF
–
+
UDG-08107
Q1
BSC079N03S
V
OUT
(
)
f
IN
O
IN
RIPPLE
SW
V
L
1.534 H
V
I
-
=
m
(
)
(
)
(
)
( )
2
OH
OL
OUT
2
f
i
L
I
C
279 F
V
-
=
m
-
www.ti.com ....................................................................................................................................................................................................... SLUS864 – MAY 2009
Figure 9. Design Example, 12 V to 1.6 V/10 A DC-DC Converter
Choosing the Inductor
Typically the peak-to-peak inductor current
ΔI is selected to be approximately between 20% and 40% of the rated
output current. In this design, IRIPPLE is targeted at around 30% of the load current. Using Equation 2.
(29)
Therefore, an inductor value of 1.5
μH is selected in practical, and the inductor ripple current is 3.08 A.
Calculating Output Capacitance
Minimum capacitance value can be calculated according to the demand of the load transient response.
Considering 0-A to 10-A step load and 10% overshoot and undershoot, the output capacitance value can be
estimated by using Equation 6,
(30)
A 470-
μF POS-CAP with 18-m ESR and a 47-μF ceramic capacitor are paralleled for the output capacitor.
Copyright 2009, Texas Instruments Incorporated
17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS51113DRCT | 功能描述:DC/DC 開(kāi)關(guān)控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS51113DRCT | 制造商:Texas Instruments 功能描述:; Controller Type:Synchronous Buck; Inpu |
| TPS51113EVM | 功能描述:電源管理IC開(kāi)發(fā)工具 25A Synch Buck Cnvrtr Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS51116 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:COMPLETE DDR AND DDR2 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE |
| TPS51116_12 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:COMPLETE DDR, DDR2 AND DDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 3-A LDO, BUFFERED REFERENCE |
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