參數(shù)資料
型號(hào)： TPS2214DB
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封裝： GREEN, PLASTIC, SSOP-24
文件頁(yè)數(shù)： 17/25頁(yè)
文件大?。?/td> 360K
代理商： TPS2214DB
TPS2214
DUAL-SLOT PC CARD POWER-INTERFACE SWITCH
FOR SERIAL PCMCIA CONTROLLERS
SLVS206B – JULY 1999 – REVISED JUNE 2000
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
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 current, wider operating input-voltage range, and higher output currents. As shown in Figure 35, the only
external components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input filter
capacitor, and a small capacitor for loop compensation. The entire converter occupies less than 0.7 in2 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
A when 12 V is not needed.
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) is brought out for external use.
For additional information, see the TPS6734 data sheet (SLVS127).
NOTE A: The enable terminal can be tied to a general-purpose I/O terminal on the PCMCIA controller or tied high.
TPS2214
BVPP
BVCC
AVPP
AVCC
RESET
LATCH
CLOCK
DATA
OC
RESET
3.3 V
5 V
12V
3.3V
5V
12V
3.3V
5V
MODE
STBY
0.1
F
0.1
F
33
F
0.1
F
33
F
EN
REF
SS
COMP
TPS6734
VCC
FB
OUT
GND
1
2
3
4
L1
18
H
8
7
6
5
R1
10 k
ENABLE
(see Note A)
C1
33
F
20V
C2
0.01
F
12 V
D1
33
F, 20 V
C4
0.001
F
3.3V or 5V
+
C1
+
Figure 35. TPS2214 with TPS6734 12-V, 120-mA Supply
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2214DBG4 功能描述:熱插拔功率分布 1A Dual-Slot PC Card 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
TPS2214DBR 功能描述:電源開關(guān) IC - 配電 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2214DBRG4 功能描述:電源開關(guān) IC - 配電 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2216ADAP 功能描述:熱插拔功率分布 Dual PCMCIA 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
TPS2216ADAPG4 功能描述:熱插拔功率分布 1A Dual-Slot PC Card 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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