參數(shù)資料
型號(hào)： LT1185IT
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70
中文描述： 2.5 V-25 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, PSFM5
封裝： PLASTIC, TO-220, 5 PIN
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 211K
代理商： LT1185IT
1
LT1185
S
FEATURE
Low Dropout Regulator
I
Low Resistance Pass Transistor: 0.25
I
Dropout Voltage: 0.75V at 3A
I
±
1% Reference Voltage
I
Accurate
Programmable Current Limit
I
Shutdown Capability
I
Internal Reference Available
I
Standard 5-Lead Packages
I
Full Remote Sense
I
Low Quiescent Current:
≈
2.5mA
I
Good High Frequency Ripple Rejection
The LT1185 uses a saturation-limited NPN transistor as
the pass element. This device gives the linear dropout
characteristics of an FET pass element with significantly
less die area. High efficiency is maintained by using special
anti-saturation circuitry that adjusts base drive to track
load current. The “on resistance” is typically 0.25
.
Accurate current limit is programmed with a single 1/8W
external resistor, with a range of zero to three amperes. A
second, fixed internal limit circuit prevents destructive
currents if the programming current is accidentally over-
ranged. Shutdown of the regulator output is guaranteed
when the program current is less than 1
μ
A, allowing
external logic control of output voltage.
The LT1185 has all the protection features of previous LTC
regulators, including power limiting and thermal shut-
down. The 4-lead TO-3 package is specified for –55
°
C to
150
°
C operation and the 5-lead TO-220 is specified over
0
°
C to 125
°
C.
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
A
O
PPLICATI
TYPICAL
5V, 3A Regulator with 3.5A Current Limit
Dropout Voltage
+
–
R1
2.37k
R2
2.67k
C1
2
μ
F
TANT
REF
GND
FB
V
OUT
V
IN
LT1185
C2
2
μ
F
TANT
R
LIM
*
4.3k
+
–
V
6V TO 16V
V
5V AT 3A
LT1185 TA01
*CURRENT LIMIT = 15k/R
LIM
= 3.5A
+
+
LOAD CURRENT (A)
0
V
I
O
0.8
1.0
1.2
4
LT1185 TA02
0.6
0.4
0
1
2
3
0.2
1.6
1.4
T
J
= 125
°
C
T
J
= –55
°
C
T
J
= 25
°
C
D
The LT
1185 is a 3A low dropout regulator with adjustable
current limit and remote sense capability. It can be used as
a positive output regulator with floating input or as a
standard negative regulator with grounded input. The
output voltage range is 2.5V to 25V, with
±
1% accuracy on
the internal reference voltage.
U
ESCRIPTIO
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1185IT#06 制造商:Linear Technology 功能描述:Low Dropout Regulator
LT1185IT#06PBF 功能描述:IC REG LDO NEG ADJ 3A TO220-5 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3V 輸入電壓:2.3 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.035V @ 150mA 穩(wěn)壓器數(shù)量:2 電流 - 輸出:150mA 電流 - 限制（最?。?300mA 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤(pán)，6-TMLF? 供應(yīng)商設(shè)備封裝:6-TMLF?（1.6x1.6） 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1104 (CN2011-ZH PDF) 其它名稱(chēng):576-3018-6
LT1185IT#06PBF 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR LDO ADJ 3 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR, LDO, ADJ, 3A, TO-220-
LT1185IT#30PBF 功能描述:IC REG LDO NEG ADJ 3A TO220-5 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:300mA（最小值） 電流 - 限制（最?。?360mA 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:帶卷 (TR)
LT1185IT#31 制造商:Linear Technology 功能描述:LDO Regulator Neg/Pos 2.5V to 25V-2.5V to -25V 3A 5-Pin(5+Tab) TO-220
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