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| 型号： | LT3021ES8-1.8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.8V .5A 8-SOIC |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.8V |
| 输入电压： | 最高 10V |
| 电压 - 压降（标准）： | 0.155V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA |
| 电流 - 限制（最小）： | 550mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
ELECTRICAL CHARACTERISTICS
The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T J = 25°C.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3021 regulators are tested and speci?ed under pulse load
conditions such that T J ≈ T A . The LT3021E regulators are 100% tested
at T A = 25°C. Performance at –40°C and 125°C is assured by design,
characterization and correlation with statistical process controls. The
LT3021I regulators are guaranteed over the full –40oC to 125oC operating
junction temperature range.
Note 3: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the speci?ed maximum operating junction
temperature may impair device reliability.
Note 4: Maximum junction temperature limits operating conditions. The
regulated output voltage speci?cation does not apply for all possible
combinations of input voltage and output current. Limit the output current
range if operating at maximum input voltage. Limit the input voltage range
if operating at maximum output current.
Note 5: Typically the LT3021 supplies 500mA output current with a 1V
input supply. The guranteed minimum input voltage for 500mA output
current is 1.10V.
Note 6: The LT3021 is tested and speci?ed for these conditions with an
external resistor divider (20k and 30.1k) setting V OUT to 0.5V. The external
resistor divider adds 10μA of output load current. The line regulation and
voltage, not the 0.5V output voltage. Speci?cations for ?xed output voltage
devices are referred to the output voltage.
Note 7: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a speci?ed output current. In dropout the
output voltage equals: (V IN – V DROPOUT ).
Note 8: GND pin current is tested with V IN = V OUT(NOMINAL) + 0.4V and a
current source load. GND pin current will increase in dropout. See GND pin
current curves in the Typical Performance Characteristics section.
Note 9: Adjust pin bias current ?ows out of the ADJ pin.
Note 10: Shutdown pin current ?ows into the SHDN pin.
Note 11: Reverse output current is tested with IN grounded and OUT
forced to the rated output voltage. This current ?ows into the OUT pin and
out of the GND pin. For ?xed voltage devices this includes the current in
the output resistor divider.
Note 12: The LT3021 is tested and speci?ed for these conditions with an
external resistor divider (20k and 100k) setting V OUT to 1.2V. The external
resistor divider adds 10μA of load current.
Note 13: Reverse current is higher for the case of (rated_output) < V OUT
< V IN, because the no-load recovery circuitry is active in this region and is
trying to restore the output voltage to its nominal value.
Note 14: Minimum input voltage is the minimum voltage required by the
control circuit to regulate the output voltage and supply the full 500mA
rated current. This speci?cation is tested at V OUT = 0.5V. At higher output
voltages the minimum input voltage required for regulation will be equal to
the regulated output voltage V OUT plus the dropout voltage.
load regulation speci?cations refer to the change in the 0.2V reference
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage
Dropout Voltage
Minimum Input Voltage
250
225
T J = 125 ° C
250
225
V OUT = 1.2V
I L = 500mA
1.2
1.1
I L = 500mA
200
200
1.0
175
150
175
150
I L = 250mA
0.9
0.8
125
100
75
50
25
T J = 25 ° C
125
100
75
50
25
I L = 100mA
I L = 50mA
I L = 10mA
I L = 1mA
0.7
0.6
0.5
0.4
0.3
0
0
100
200
300
400
500
0
–50
–25
0
25
50 75
100
125
0.2
–50
–25
0
25
50 75
100
125
OUTPUT CURRENT (mA)
3021 G01
TEMPERATURE ( ° C)
3021 G02
TEMPERATURE ( ° C)
3021 G16
3021fc
5
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| LT3021ES8PBF | 制造商:Linear Technology 功能描述:LDO Regulator Adj. 500mA 0.9-10V SOIC8 |
| LT3021IS8-1.8#PBF | 功能描述:IC REG LDO 1.8V .5A 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:800 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:最高 16V 电压 - 压降（标准）:0.7V @ 4A 稳压器数量:1 电流 - 输出:4A 电流 - 限制（最小）:4.2A 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-6，D²Pak（5 引线+接片），TO-263BA 供应商设备封装:TO-263-5 包装:带卷 (TR) 其它名称:AP1184K525L-13AP1184K525LDITR |
| LT3021IS8-1.8#TRPBF | 功能描述:IC REG LDO 1.8V .5A 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:3V 输入电压:2.3 V ~ 5.5 V 电压 - 压降（标准）:0.035V @ 150mA 稳压器数量:2 电流 - 输出:150mA 电流 - 限制（最小）:300mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-UFDFN 裸露焊盘，6-TMLF? 供应商设备封装:6-TMLF?（1.6x1.6） 包装:Digi-Reel® 产品目录页面:1104 (CN2011-ZH PDF) 其它名称:576-3018-6 |
| LT3022 | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.5A, Low Noise, Negative Linear Regulator |
| LT3022EDHC | 制造商:LINER 制造商全称:Linear Technology 功能描述:1A, 0.9V to 10V, Very Low Dropout Linear Regulator |
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