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參數(shù)資料
| 型號(hào)： | LT1185IQ |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 2.5 V-25 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, PSSO5 |
| 封裝： | PLASTIC, D2PAK-5 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 191K |
| 代理商： | LT1185IQ |
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1
LT1185
1185ff
Low Dropout Regulator
■
Low Resistance Pass Transistor: 0.25
■
Dropout Voltage: 0.75V at 3A
■
±
1% Reference Voltage
■
Accurate
Programmable Current Limit
■
Shutdown Capability
■
Internal Reference Available
■
Full Remote Sense
■
Low Quiescent Current: 2.5mA
■
Good High Frequency Ripple Rejection
■
Available in 5-Lead TO-220 and DD Packages
The LT1185 uses a saturation-limited NPN transistor as
the pass element. This device gives the linear dropout
characteristics of a 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
shutdown.
5V, 3A Regulator with 3.5A Current Limit
Dropout Voltage
+
–
2.37k
2.67k
2
μ
F
TANT
REF
GND
FB
V
OUT
V
IN
LT1185
2
μ
F
TANT
R
*
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
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.
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1185C | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LT1185CT | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185I | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185IT | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
| LT1185M | 9-Bit Odd/Even Parity Generators/Checkers 14-SOIC 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1185IQ#PBF | 功能描述:IC REG LDO NEG ADJ 3A 5-DD RoHS:是 類別: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:8V 輸入電壓:10.5 V ~ 23 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.7V @ 40mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:100mA（最小值） 電流 - 限制（最小）:- 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1075 (CN2011-ZH PDF) 其它名稱:296-24390-1 |
| LT1185IQ#PBF | 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-263- |
| LT1185IQ#TR | 制造商:Linear Technology 功能描述:LDO Regulator Neg/Pos -2.5V to -25V2.5V to 25V 3A 6-Pin(5+Tab) DDPAK T/R |
| LT1185IQ#TRPBF | 功能描述:IC REG LDO NEG ADJ 3A 5-DD RoHS:是 類別: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（最小）:300mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤，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:576-3018-6 |
| LT1185IT | 功能描述:IC REG LDO NEG ADJ 3A TO220 RoHS:否 類別: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（最小）:300mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 裸露焊盤，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:576-3018-6 |
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