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參數(shù)資料
| 型號(hào)： | LT1312CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Single PCMCIA VPP Driver/Regulator |
| 中文描述： | FIXED POSITIVE LDO REGULATOR, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 259K |
| 代理商： | LT1312CS8 |
9
LT1312
APPLICATIO
S I
N
FOR
ATIO
U
W
U
V
S
EN0
VPP
OUT
LT1312
EN1
VALID
SENSE
GND
V
IN
V
SW
LT1172
FB
GND
V
C
+
1
μ
F
LT1312 F4
100
μ
F
1N5158
13.75V
100
μ
H
10k
1%
1
1k
2
4
5
3
1k
1%
TO CARD VPP PIN
0V, 5V, 12V OR HI-Z
+
22
μ
F
5V
+
1
μ
F
+
Figure 7. Using a 0.33
μ
F to 1
μ
F Output Capacitor
Figure 4. Local 5V to 15V Boost Regulator for Line Operated Applications
V
S
EN0
VPP
OUT
LT1312
EN1
VALID
SENSE
GND
0.33
μ
F
CERAMIC
LT1312 F7
0.1
μ
F
2
13V TO 20V
Figure 6. Recommended >1
μ
F Tantalum Output Capacitor
V
S
EN0
VPP
OUT
LT1312
EN1
VALID
SENSE
GND
+
>1
μ
F TANTALUM
OR ALUMINUM
LT1312 F6
0.1
μ
F
13V TO 20V
V
S
EN0
VPP
OUT
LT1312
EN1
VALID
SENSE
GND
V
IN
SW1
I
LIM
LT1111CS8
SENSE
SW2
GND
+
1
μ
F
LT1312 F5
100
μ
F
1N5158
13.75V
100
μ
H
100k
1%
4
8
3
1
2
5
10k
1%
TO CARD VPP PIN
0V, 5V, 12V OR HI-Z
100
+
22
μ
F
12V
+
This is easily accomplished by generating a local 14V
supply from a relatively “dirty” 5V or 12V supply as shown
in Figures 4 and 5. Precise voltage control (and further
filtering) is provided by the LT1312 driver/regulator. A
further advantage to this scheme is that it adds current
limit in series with the VPP pins to eliminate possible
damage to the card socket, the PC card, or the switching
power supply in the event of an accidental short circuit.
Output Capacitance
The LT1312 is designed to be stable with a wide range of
output capacitors. The minimum recommended value is a
1
μ
F with an ESR of 3
or less. The capacitor is connected
directly between the output pin and ground as shown in
Figure 6.
For applications where space is very limited, capacitors as
low as 0.33
μ
F can be used. Extremely low ESR ceramic
capacitors with values less than 1
μ
F must have a 2
resistor added in series with the output capacitor as shown
in shown in Figure 7.
Figure 5. Local 12V to 15V Boost Regulator for Line Operated Applications
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PDF描述 |
|---|---|
| LT1312 | PCMCIA Driver/Regulator(PCMCIA（個(gè)人計(jì)算機(jī)存儲(chǔ)卡國(guó)際協(xié)會(huì)）驅(qū)動(dòng)器/穩(wěn)壓器) |
| LT1316CS8 | Micropower DC/DC Converter with Programmable Peak Current Limit |
| LT1316CMS8 | Micropower DC/DC Converter with Programmable Peak Current Limit |
| LT1316 | 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-SOIC 0 to 70 |
| LT1316IS8 | SPDT, 1/4 Amp Two Circuit Pushbutton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1313 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual PCMCIA VPP Driver/Regulator |
| LT1313CS | 功能描述:IC DRV/REG PCMCIA VPP DUAL16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR) |
| LT1313CS#PBF | 功能描述:IC DRV/REG PCMCIA VPP DL 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| LT1313CS#TR | 功能描述:IC DRIVER/REG VPP PCMCIA 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LT1313CS#TRPBF | 功能描述:IC DRV/REG PCMCIA VPP DL 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
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