参数资料
| 型号： | LT3070EUFD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 5A 28QFN |
| 产品培训模块： | LT3070 - 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator |
| 特色产品： | LT3070 Linear Regulator |
| 标准包装： | 73 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.8 V ~ 1.8 V |
| 输入电压： | 0.95 V ~ 3 V |
| 电压 - 压降（标准）： | 0.085V @ 5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 5A |
| 电流 - 限制（最小）： | 5.1A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN（4x5） |
| 包装： | 管件 |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
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LT3070
5A, Low Noise,
Programmable Output,
85mV Dropout
Linear Regulator
Output Current: 5A
Dropout Voltage: 85mV Typical
Digitally Programmable V OUT : 0.8V to 1.8V
Digital Output Margining: ±1%, ±3% or ±5%
Low Output Noise: 25μV RMS (10Hz to 100kHz)
Parallel Multiple Devices for 10A or More
Precision Current Limit: ±20%
±1% Accuracy Over Line, Load and Temperature
Stable with Low ESR Ceramic Output Capacitors
High Frequency PSRR: 30dB at 1MHz
Enable Function Turns Output On/Off
VIOC Pin Controls Buck Converter to Maintain Low
PWRGD/UVLO/Thermal Shutdown Flag
Current Limit with Foldback Protection
Thermal Shutdown
28-Lead (4mm × 5mm × 0.75mm) QFN Package
FPGA and DSP Supplies
ASIC and Microprocessor Supplies
Servers and Storage Devices
Post Buck Regulation and Supply Isolation
FEATURES
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(15μF Minimum)
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Power Dissipation and Optimize Efficiency
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APPLICATIONS
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DESCRIPTION
The LT ? 3070 is a low voltage, UltraFast? transient re-
sponse linear regulator. The device supplies up to 5A of
output current with a typical dropout voltage of 85mV.
A 0.01μF reference bypass capacitor decreases output
voltage noise to 25μV RMS . The LT3070’s high bandwidth
permits the use of low ESR ceramic capacitors, saving
bulk capacitance and cost. The LT3070’s features make
it ideal for high performance FPGAs, microprocessors or
sensitive communication supply applications.
Output voltage is digitally selectable in 50mV increments
over a 0.8V to 1.8V range. A margining function allows
the user to adjust system output voltage in increments of
±1%, ±3% or ±5%. The IC incorporates a unique tracking
function to control a buck regulator powering the LT3070’s
input. This tracking function drives the buck regulator to
maintain the LT3070’s input voltage to V OUT + 300mV,
minimizing power dissipation.
Internal protection includes UVLO, reverse-current protec-
tion, precision current limiting with power foldback and
thermal shutdown. The LT3070 regulator is available in a
thermally enhanced 28-lead, 4mm × 5mm QFN package.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
UltraFast and VLDO are trademarks of Linear Technology Corporation. All other trademarks are
the property of their respective owners. Patents pending.
V BIAS
2.2μF
TYPICALAPPLICATION
0.9V, 5A Regulator
50k
2.2V TO 3.6V
PWRGD
150
120
Dropout Voltage
V IN = V OUT(NOMINAL)
V IN
1.2V
330μF
BIAS
IN PWRGD
EN SENSE
V O0 LT3070 OUT
V O1
V O2
MARGSEL
MARGTOL
2.2μF* 4.7μF*
*X5R OR X7R CAPACITORS
V OUT
0.9V
10μF* 5A
90
60
30
V OUT = 1.8V
V BIAS = 3.3V
V OUT = 0.8V
V BIAS = 2.5V
VIOC
REF/BYP
1nF
GND
0.01μF
3070 TA01a
0
0
1
2 3
OUTPUT CURRENT (A)
4
5
3070 TA01b
3070fb
For more information www.linear.com/LT3070
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3070EUFDTR | 制造商:LINER 制造商全称:Linear Technology 功能描述:5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator |
| LT3070EUFDTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator |
| LT3070IUFD | 制造商:LINER 制造商全称:Linear Technology 功能描述:5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator |
| LT3070IUFD#PBF | 功能描述:IC REG LDO ADJ 5A 28QFN 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 |
| LT3070IUFD#TRPBF | 功能描述:IC REG LDO ADJ 5A 28QFN 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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