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參數(shù)資料
| 型號： | TPS6223-1.5DRYT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 1 X 1.50 MM, 0.60 MM HEIGHT, PLASTIC, MO-287UFAD, SON-6 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大小： | 1276K |
| 代理商： | TPS6223-1.5DRYT |
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TPS62230
L
1/2.2
H
m
VIN
EN
MODE
GND
FB
SW
2.5V
V
OUT
2.7V-6V
V
IN
2.2
C
IN
mF
4.7
F
m
C
OUT
1.8V
V
OUT
2.05V-6V
V
IN
2.2
F
m
C
IN
L
1/2.2
H
m
C
4.7
F
OUT
m
TPS62231
VIN
EN
MODE
SW
FB
GND
1.2V
V
OUT
2.05V-6V
V
IN
2.2
F
m
C
IN
L
1/2.2
H
m
C
4.7
F
OUT
m
TPS62232
VIN
EN
MODE
SW
FB
GND
L
Vout
1
Vin
I
= Vout
L
-
D
L
Lmax
outmax
I
= I
+
2
D
SLVS941A – APRIL 2009 – REVISED AUGUST 2009....................................................................................................................................................... www.ti.com
APPLICATION INFORMATION
Figure 41. TPS62230 2.5V Output
Figure 42. TPS62231 1.8V Output
Figure 43. TPS62232 1.2V Output
OUTPUT FILTER DESIGN (INDUCTOR AND OUTPUT CAPACITOR)
The TPS6223X is optimized to operate with effective inductance values in the range of 0.7
μH to 4.3μH and with
effective output capacitance in the range of 2.0
μF to 15μF. The internal compensation is optimized to operate
with an output filter of L = 1.0
μH/2.2μH and COUT = 4.7μF. Larger or smaller inductor/capacitor values can be
used to optimize the performance of the device for specific operation conditions. For more details, see the
CHECKING LOOP STABILITY section.
INDUCTOR SELECTION
The inductor value affects its peak-to-peak ripple current, the PWM-to-PFM transition point, the output voltage
ripple and the efficiency. The selected inductor has to be rated for its dc resistance and saturation current. The
inductor ripple current (
calculates the maximum inductor current under static load conditions. The saturation current of the inductor
should be rated higher than the maximum inductor current as calculated with Equation 5. This is recommended
because during heavy load transient the inductor current will rise above the calculated value.
(4)
(5)
With:
f = Switching Frequency
L = Inductor Value
ΔIL= Peak to Peak inductor ripple current
ILmax = Maximum Inductor current
20
Copyright 2009, Texas Instruments Incorporated
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS622315EVM-574 | 功能描述:電源管理IC開發(fā)工具 TPS622315 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS622316DRYR | 功能描述:直流/直流開關轉(zhuǎn)換器 3MHz Ultra Small Step Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| TPS622316DRYT | 功能描述:直流/直流開關調(diào)節(jié)器 3MHz Ultra Small Step Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率: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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS622317DRYR | 功能描述:直流/直流開關調(diào)節(jié)器 3MHz Ultra Small Step Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率: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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS622317DRYT | 功能描述:直流/直流開關調(diào)節(jié)器 3MHz Ultra Small Step Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率: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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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