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參數(shù)資料
| 型號(hào)： | LT1123CZ |
| 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： | 5 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 241K |
| 代理商： | LT1123CZ |
3
LT1123
TEMPERATURE (°C)
0
100
F
200
300
400
25
50
75
100
LT1123 G01
125
V
FB
= 5V
Feedback Pin Bias Current vs
Temperature
FEEDBACK PIN VOLTAGE (V)
0
F
300
400
500
4
LT1123 G04
200
100
0
1
2
3
5
T
J
= 125°C
T
J
= 0°C
T
J
= 25°C
TEMPERATURE (°C)
–50
O
5.01
5.02
5.03
25
75
LT1123 G06
5.00
4.99
–25
0
50
100 125
4.98
4.97
Output Voltage vs Temperature
TEMPERATURE (°C)
0
0
M
200
400
600
25
50
75
100
LT1123 G02
125
100
300
500
V
DRIVE
= 3V
Minimum Drive Pin Current vs
Temperature
DRIVE CURRENT (mA)
0
0
D
1.0
2.5
40
80
100
LT1123 G05
0.5
2.0
1.5
20
60
120
140
T
J
= 125°C
T
J
= 0°C
T
J
= 25°C
V
FB
= 4.5V
Drive Pin Saturation Voltage vs
Drive Current
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
The LT1123 is a three pin device designed to be used in
conjunction with a discrete PNP transistor to form an
inexpensive ultra-low dropout regulator. The device incor-
porates a trimmed 5V bandgap reference, error amplifier,
a current-limited Darlington driver, and an internal ther-
mal limit circuit. The internal circuitry connected to the
drive pin is designed to function at the saturation voltage
of the Darlington driver. This allows a resistor to be
inserted in series with the drive pin. This resistor is used
to limit the base drive to the PNP and also to limit the power
dissipation in the LT1123. The value of this resistor will be
defined by the operating requirements of the regulator
circuit. The LT1123 is designed to sink a minimum of
125mA of base current. This is sufficient base drive to
form a regulator circuit which can supply output currents
up to 4A at a dropout voltage of less than 0.75V.
FUU
U
FEEDBACK PIN VOLTAGE (V)
0
0
D
50
100
150
1
2
3
4
LT1123 G03
5
6
200
T
J
= 125°C
T
J
= –50°C
T
J
= 25°C
V
DRIVE
= 3V
Drive Current vs Feedback Pin
Voltage
Feedback Pin Bias Current vs
Feedback Pin Voltage
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參數(shù)描述 |
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| LT1123CZ#PBF | 功能描述:IC REG CTRLR SGL 5V TO-92-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性晶體管驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:正，固定式 輸出數(shù):2 輸出電壓:2.8V，3.3V 電流 - 電源:12mA 輸入電壓:5 V ~ 22 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| LT1123CZ#TR | 功能描述:IC REG CTRLR SGL 5V TO-92-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性晶體管驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:正，固定式 輸出數(shù):2 輸出電壓:2.8V，3.3V 電流 - 電源:12mA 輸入電壓:5 V ~ 22 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| LT1123CZ#TRPBF | 功能描述:IC REG CTRLR SGL 5V TO-92-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性晶體管驅(qū)動(dòng)器 系列:- 產(chǎn)品培訓(xùn)模塊:More Information on LDOs 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:正，固定式 輸出數(shù):2 輸出電壓:2.8V，3.3V 電流 - 電源:12mA 輸入電壓:5 V ~ 22 V 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| LT1123CZ2.85 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| LT1124 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual/Quad Low Noise, High Speed Precision Op Amps |
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