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參數(shù)資料
| 型號： | TPS2226APWPRG4 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | CARDBUS POWER-INTERFACE SWITCHES FOR SERIAL PCMCIA CONTROLLERS |
| 中文描述： | CARDBUS功率接口開關(guān)用于串行PCMCIA控制器 |
| 文件頁數(shù)： | 26/29頁 |
| 文件大小： | 447K |
| 代理商： | TPS2226APWPRG4 |
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12-V FLASH MEMORY SUPPLY
The TPS6734 is a fixed 12-V output boost converter capable of delivering 120 mA from inputs as low as 2.7 V.
The device is pin-for-pin compatible with the MAX734 regulator and offers the following advantages: lower supply
components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input filter capacitor, anda small capacitor for loop compensation. The entire converter occupies less than 0.7 in
2
of PCB space when
implemented with surface-mount components. An enable input is provided to shut the converter down and
reduce the supply current to 3 μA when 12 V is not needed.
NOTE A: The enable terminal can be tied to a general-purpose I/O terminal on the PCMCIA controller or tied high.
TPS2226A
or
TPS2224A
BVPP
BVCC
BVCC
BVCC
AVPP
AVCC
AVCC
AVCC
LATCH
CLOCK
DATA
OC
RESET
3.3 V
5 V
12 V
3.3 V
5 V
12 V
3.3 V
3.3 V
5 V
5 V
SHDN
0.1
μ
F
0.1
μ
F
1
μ
F
0.1
μ
F
4.7
μ
F
EN
REF
SS
COMP
TPS6734
VCC
FB
OUT
GND
1
2
3
4
L1
18
μ
H
8
7
6
5
R1
10 k
Enable
(see Note A)
C1
33
μ
F
20 V
C2
0.01
μ
F
12 V
D1
33
μ
F, 20 V
C4
0.001
μ
F
3.3 V or 5 V
+
C1
+
Not on TPS2224A
TPS2220A, TPS2223A
TPS2224A, TPS2226A
SLVS428B–MAY 2002–REVISED SEPTEMBER 2004
The TPS6734 is a 170-kHz current-mode PWM (pulse-width modulation) controller with an n-channel MOSFET
power switch. Gate drive for the switch is derived from the 12-V output after start-up to minimize the die area
needed to realize the 0.7-
MOSFET and improve efficiency at input voltages below 5 V. Soft start is
accomplished with the addition of one small capacitor. A 1.22-V reference, pin 2 of TPS6734, is brought out for
external use. For additional information, see the TPS6734 data sheet (
SLVS127
).
Figure 36. TPS2224A and TPS2226A with TPS6734 12-V, 120-mA Supply
26
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2226DB | 功能描述:熱插拔功率分布 1A Dual PC Pwr RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2226DBG4 | 功能描述:熱插拔功率分布 1A Dual PC Pwr RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2226DBR | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card Pwr Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2226DBRG4 | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card Pwr Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2228DB | 功能描述:熱插拔功率分布 1A Dual-Slot CardBay w/Serial Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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