參數(shù)資料
型號(hào)： TPS62000YEGR
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, BGA12
封裝： DSBGA-12
文件頁(yè)數(shù)： 6/26頁(yè)
文件大?。?/td> 878K
代理商： TPS62000YEGR
2
O
I
L
O
L(max)
O(max)
V
1
V
I
I = V
I
L
f
-
D
=
+
(4)
OUTPUT CAPACITOR SELECTION
1
2
3
O
I
RMS(C )
O
V
1
V
I
= V
L
f
-
(5)
O
I
O
V
1
V
1
V
= V
ESR
L
8
C
f
-
D
+
÷
è
(6)
SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 ........................................................................................................................................... www.ti.com
Where:
= Switching frequency (750 kHz typical)
L = Inductor value
ΔIL = Peak-to-peak inductor ripple current
IL(max) = Maximum inductor current
The highest inductor current occurs at maximum VI.
A more conservative approach is to select the inductor current rating just for the maximum switch current of the
TPS6200x which is 1.6 A with ILIM = VIN and 900 mA with ILIM = GND. See Table 1 for recommended inductors.
Table 1. Tested Inductors
OUTPUT CURRENT
INDUCTOR VALUE
COMPONENT SUPPLIER
COMMENTS
0 mA to 600 mA
10
H
Coilcraft DO3316P-103
High efficiency
Coilcraft DT3316P-103
Sumida CDR63B-100
Sumida CDRH5D28-100
Coilcraft DO1608C-103
Smallest solution
Sumida CDRH4D28-100
0 mA to 300 mA
10
H
Coilcraft DO1608C-103
High efficiency
Murata LQH4C100K04
Smallest solution
For best performance, a low ESR output capacitor is needed. At output voltages greater than 1.8 V, ceramic
output capacitors can be used to show the best performance. Output voltages below 1.8 V require a larger output
capacitor and ESR value to improve the performance and stability of the converter.
Table 2. Capacitor Selection
OUTPUT VOLTAGE RANGE
OUTPUT CAPACITOR
OUTPUT CAPACITOR ESR
1.8 V
≤ VI ≤ 5.5 V
Co ≥ 10 F
ESR
≤ 120 m
0.8 V
≤ VI < 1.8 V
Co ≥ 47 F
ESR > 50 m
See Table 3 for recommended capacitors.
If an output capacitor is selected with an ESR value
≤ 120 m, its RMS ripple current rating always meets the
application requirements. Just for completeness, the RMS ripple current is calculated as:
The overall output ripple voltage is the sum of the voltage spike caused by the output capacitor ESR plus the
voltage ripple caused by charge and discharging the output capacitor:
Where the highest output voltage ripple occurs at the highest input voltage VI.
14
Copyright 2000–2008, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
TPS62000YEGT 1.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, BGA12
TPS62000YEG 1.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, BGA12
TPS62000YZG 1.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, BGA12
TPS62080DSG 0.002 A SWITCHING REGULATOR, PDSO8
TPS62082DSGR 0.002 A SWITCHING REGULATOR, PDSO8
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參數(shù)描述
TPS62000YEGT 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS62000YZGR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj 600-mA 95% Eff Step-Down Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS62000YZGT 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj 600-mA 95% Eff Step-Down Conv RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS62001DGS 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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
TPS62001DGSG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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
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