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參數(shù)資料
| 型號(hào)： | LT1375IS8-5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Octal D-Type Transparent Latches With 3-State Outputs 20-PDIP 0 to 70 |
| 中文描述： | 3 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大?。?/td> | 232K |
| 代理商： | LT1375IS8-5 |
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6
LT1375/LT1376
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
INPUT VOLTAGE (V)
0
C
1.50
1.25
1.00
0.75
0.50
0.25
0
5
10
15
20
1375/76 G13
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 10V
INPUT VOLTAGE (V)
0
C
1.50
1.25
1.00
0.75
0.50
0.25
0
5
10
15
20
1375/76 G14
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 3.3V
Maximum Load Current
at V
OUT
= 10V
Maximum Load Current
at V
OUT
= 3.3V
Maximum Load Current
at V
OUT
= 5V
INPUT VOLTAGE (V)
0
C
1.50
1.25
1.00
0.75
0.50
0.25
0
5
10
15
20
1375/76 G15
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 5V
PI
FU
CTIO
N
S
U
U
BOOST:
The BOOST pin is used to provide a drive voltage,
higher than the input voltage, to the internal bipolar NPN
power switch. Without this added voltage, the typical
switch voltage loss would be about 1.5V. The additional
boost voltage allows the switch to saturate and voltage
loss approximates that of a 0.3
FET structure, but with
much smaller die area. Efficiency improves from 75% for
conventional bipolar designs to > 87% for these new parts.
V
SW
:
The switch pin is the emitter of the on-chip power
NPN switch. It is driven up to the input pin voltage during
switch on time. Inductor current drives the switch pin
negative during switch off time. Negative voltage is clamped
with the external catch diode. Maximum negative switch
voltage allowed is –0.8V.
SHDN:
The shutdown pin is used to turn off the regulator
and to reduce input drain current to a few microamperes.
Actually, this pin has two separate thresholds, one at
2.38V to disable switching, and a second at 0.4V to force
complete micropower shutdown. The 2.38V threshold
functions as an accurate undervoltage lockout (UVLO).
This is sometimes used to prevent the regulator from
operating until the input voltage has reached a predeter-
mined level.
SWITCH CURRENT (A)
0
B
12
10
8
6
4
2
0
0.25
0.50
0.75
1.00
1375/76 G16
1.25
T
J
= 25
°
C
BOOST Pin Current
V
C
Pin Shutdown Threshold
SWITCH CURRENT (A)
0
S
0.8
0.6
0.4
0.2
0
0.25
0.50
0.75
1.00
1375/76 G18
1.25
1.50
T
J
= 25
°
C
Switch Voltage Drop
JUNCTION TEMPERATURE (
°
C)
–50
1.4
1.2
1.0
0.8
0.6
0.4
100
1375/76 G11
–25
0
25
50
75
125
T
SHUTDOWN
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| LT1376CS | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1375IS8-5#PBF | 功能描述:IC REG BUCK 5V 1.5A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1375IS8-5#TR | 功能描述:IC REG BUCK 5V 1.5A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1375IS8-5#TRPBF | 功能描述:IC REG BUCK 5V 1.5A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1376 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5A, 500kHz Step-Down Switching Regulators |
| LT1376C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5A, 500kHz Step-Down Switching Regulators |
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