参数资料
| 型号： | LT1020ISW |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 125MA 16-SOIC |
| 标准包装： | 47 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 可调 |
| 输入电压： | 4.5 V ~ 36 V |
| 电压 - 压降（标准）： | 0.4V @ 125mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 125mA（最小） |
| 工作温度： | 0°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
LT1020
TYPICAL PERFOR A CE CHARACTERISTICS
Regulator Thermal Regulation
LT1020 Turn-On Characteristic
0.1
V IN = 15V
V OUT = 5V
5.5
5.0
V OUT = 5V
0
4.5
–0.1
50
4.0
3.5
3.0
2.5
NO LOAD
R L = 50 ?
R L = 500 ?
2.0
0
0
20 40 60 80 100 120 140 160 180
0
0
1
2
3
4
5
6
7
8
TIME (ms)
1020 G16
PI FU CTIO S
Pins 1, 14: No Internal Connection.
Pin 2: Regulator Output. Main output, requires 10 μ F
output capacitor. Can be shorted to V IN or ground without
damaging the device.
Pin 3: Input Supply. Bypass with 10 μ F capacitor. Must
always be more positive than ground.
Pin 4: Reference. 2.5V can source or sink current. May be
shorted to ground or up to 5V. Voltages in excess of 5V can
damage the device.
Pin 5: Comparator PNP Output. Open Collector PNP
Output. Pull-up current source for the comparator. May be
connected to any voltage from V IN to 36V more negative
than V IN (operates below ground). Short-circuit protected.
For example, if V IN is 6V then pin 5 will operate to – 30V.
Pin 6: Comparator NPN Output. Open Collector NPN
Output. May be connected to any voltage from ground to
INPUT VOLTAGE (V)
1020 G17
Pin 9: Ground.
Pin 10: Current Limit. Connecting this pin to ground
decreases the regulator current limit to 3mA minimum.
Leave open when not used.
Pin 11: Feedback. This is the feedback point of the regu-
lator. When operating, it is nominally at 2.5V. Optimum
source resistance is 200k to 500k. The feedback pin
should not be driven below ground or more positive than
5V.
Pin 12: Shutdown. Turns output off.
Pin 13: Dropout Detector. This pin acts like a current
source from V IN which turns on when the output transistor
goes into saturation. The magnitude of the current de-
pends on the magnitude of the output current and the
input/output voltage differential. Pin current ranges from
5 μ A to about 300 μ A.
36V more positive than ground (operates above V IN ).
Short-circuit protected.
Pins 7, 8: Comparator Inputs. Operates from ground to
V IN – 1V. Comparator inputs will withstand 36V even with
V IN of 0V.
sn1020 1020fcs
6
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| LT1020ISW#PBF | 功能描述:IC REG LDO ADJ 125MA 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| LT1020ISW#TR | 功能描述:IC REG LDO ADJ 125MA 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| LT1020ISW#TRPBF | 功能描述:IC REG LDO ADJ 125MA 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
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