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| 型号： | LT3028EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A/.1A 16-DFN |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.22 V ~ 20 V |
| 输入电压： | 1.8 V ~ 20 V |
| 电压 - 压降（标准）： | 0.32V @ 500mA，0.3V @ 100mA |
| 稳压器数量： | 2 |
| 电流 - 输出： | 500mA，100mA |
| 电流 - 限制（最小）： | 520mA，110mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LT3028
Dual 100mA/500mA
Low Dropout, Low Noise,
Micropower Regulators with
Independent Inputs
FEATURES
DESCRIPTIO
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Low Noise: 20 μ V RMS (10Hz to 100kHz)
Low Quiescent Current: 30 μ A/Output
Independent Inputs
Wide Input Voltage Range: 1.8V to 20V
Output Current: 100mA/500mA
Very Low Shutdown Current: <0.1 μ A
Low Dropout Voltage: 300mV/320mV at
100mA/500mA
Adjustable Outputs from 1.22V to 20V
Stable with as Low as 1 μ F/3.3 μ F Output Capacitor
Stable with Aluminum, Tantalum or
Ceramic Capacitors
Reverse-Battery Protected
No Protection Diodes Needed
Overcurrent and Overtemperature Protected
Tracking/Sequencing Capability
Thermally Enhanced 16-Lead TSSOP and 16-Lead
(5mm × 3mm) DFN Packages
The LT ? 3028 is a dual, micropower, low noise, low drop-
out regulator with independent inputs. With an external
0.01 μ F bypass capacitor, output noise is a low 20 μ V RMS
over a 10Hz to 100kHz bandwidth. Designed for use in
battery-powered systems, the low 30 μ A quiescent current
per output makes it an ideal choice. In shutdown, quies-
cent current drops to less than 0.1 μ A. Shutdown control
is independent for each output, allowing for flexibility in
power management. The device is capable of operating
over an input voltage range of 1.8V to 20V. Output 1 can
supply 500mA of output current with a dropout voltage of
320mV. The device can supply 100mA of output current
from Output 2 with a dropout voltage of 300mV. Quiescent
current is well controlled in dropout.
The LT3028 regulator is stable with output capacitors as
low as 1 μ F for the 100mA output and 3.3 μ F for the 500mA
output. Small ceramic capacitors can be used without the
series resistance required by other regulators.
APPLICATIO S
■ Cellular Phones
■ Pagers
■ Battery-Powered Systems
■ Frequency Synthesizers
■ Wireless Modems
Internal protection circuitry includes reverse-battery pro-
tection, current limiting and thermal limiting protection.
The device is available as an adjustable device with a 1.22V
reference voltage. The LT3028 regulator is available in the
thermally enhanced 16-lead TSSOP and 16-lead, low
profile (5mm × 3mm × 0.75mm) DFN packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
Tracking/Sequencing Power Supplies
Protected by U.S. Patents including 6118263, 6144250.
TYPICAL APPLICATIO
3.3V/2.5V Low Noise Regulators
10Hz to 100kHz Output Noise
V IN1
3.7V TO
20V
1 μ F
IN1
SHDN1
OUT1
BYP1
0.01 μ F
422k
10 μ F
3.3V AT 500mA
20 μ V RMS NOISE
ADJ1
LT3028
249k
V OUT
100 μ V/DIV
20 μ V RMS
V IN2
2.9V TO
20V
1 μ F
IN2
SHDN2
OUT2
BYP2
ADJ2
0.01 μ F
261k
10 μ F
2.5V AT 100mA
20 μ V RMS NOISE
3028 TA01b
GND
249k
3028 TA01a
3028f
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3028EFE | 制造商:Linear Technology 功能描述:LDO Regulator Pos 1.22V to 20V 0.1A/0.5A 16-Pin TSSOP EP |
| LT3028EFE#PBF | 功能描述:IC REG LDO ADJ .5A/.1A 16-TSSOP 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:8V 输入电压:10.5 V ~ 23 V 电压 - 压降（标准）:1.7V @ 40mA 稳压器数量:1 电流 - 输出:100mA（最小值） 电流 - 限制（最小）:- 工作温度:0°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:剪切带 (CT) 产品目录页面:1075 (CN2011-ZH PDF) 其它名称:296-24390-1 |
| LT3028EFE#TRPBF | 功能描述:IC REG LDO ADJ .5A/.1A 16-TSSOP 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 |
| LT3028EFEPBF | 制造商:Linear Technology 功能描述:LT3028 dual adj 500/100mA LDO regulator |
| LT3028IDHC | 制造商:Linear Technology 功能描述:LDO Regulator Pos 1.22V to 20V1.22V to 20V 0.1A/0.5A 16-Pin DFN EP |
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