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LTC3458EDE

厂商:
Linear
类别:
DC/DC控制器
包装:
Tube
封装:
12-WFDFN, Exposed Pad
无铅情况/ROHS:
有铅
描述:
具有输出断接功能的 1.4A、1.5MHz 同步升压型 DC/DC...

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  • 参数
  • 描述
  • 文档
参数 数值
安装类型 Surface Mount
工作温度 -40°C ~ 85°C
输出数 1
同步整流器 Yes
Vin Max (V) 6
New no
Ishutdown (uA) 0.5
Featured no
Extended Temp E
内部开关 Yes
Frequency (kHz) 1500
Frequency Adjust Range 400kHz - 1.5MHz
Synchronous (yes/no) yes
Number of Outputs 1
Vswitch Max (V) 8
Topology Boost
Vin Min Startup (V) 1.4
Monolithic (yes/no) yes
输入电压 1.5 ~ 6 V
输出电压 2 ~ 7.5 V
类型 Step-Up (Boost)
Vin Min (V) 1.4 (1.5)
Isupply (mA) 0.015 (0.03)
Comments 1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
Packages DFN-12
Date Added 1984-01-01
Price 1k * $3.30 (LTC3458EDE)
开关频率 1.5MHz
输出电流 1.4A
Features Output Disconnect, External Synchronization, Resistor Set Frequency, Burst Mode, Soft Start
Switch Current (A) 1.6 (1.4)
Vout Max (V) 7.5
Frequency Sync Range 400kHz - 1.5MHz

特点
Slew Rate 12V/μs Typ
Gain-Bandwidth Product 28MHz Typ
Fast Settling to 0.01% 2V Step to 200μV 500ns Typ 10V Step to 1mV: 1.1μs Typ
Excellent DC Precision in All Packages Input Offset Voltage 275μV Max Input Offset Voltage Drift: 6μV/°C Max
Input Offset Current: 40nA Max Input Bias Current: 200nA Max Open-Loop Gain: 1200V/mV Min
Single Supply Operation Input Voltage Range Includes Ground Output Swings to Ground While Sinking Current
Low Input Noise Voltage: 10nV/rtHz Typ
Low Input Noise Current: 0.2pA/rtHz Typ
Specified at 3.3V, 5V and ±15V
Large Output Drive Current: 30mA Min
Low Supply Current per Amplifier: 3.5mA Max
Dual in 8-Pin DIP and SO-8
Quad in 14-Pin DIP and NARROW SO-16

典型应用

典型应用

描述
The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From Linear Technology Are Now Obsolete
The LT?1213 is a dual, single supply precision op amp with a 28MHz gain-bandwidth product and a 12V/μs slew rate. The LT1214 is a quad version of the same amplifier. The DC precision of the LT1213/LT1214 eliminates trims in most systems while providing high frequency performance not usually found in single supply amplifiers.
The LT1213/LT1214 will operate on any supply greater than 2.5V and less than 36V total. These amplifiers are specified at single 3.3V, single 5V and ±15V supplies, and only require 2.7mA of quiescent supply current per amplifier. The inputs can be driven beyond the supplies without damage or phase reversal of the output. The minimum output drive is 30mA, ideal for driving low impedance loads.
Note: For applications requiring higher slew rate, see the LT1215/LT1216 data sheet. For lower power and lower slew rate, see the LT1211/LT1212 data sheet.
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产品选型卡
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 Precision Voltage References
设计要点 (英文)
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 DN229 - Don't Be Fooled By Voltage Reference Long-Term Drift and Hysteresis
LTC3458EDEPDF下载 点击下载 点击下载 DN341 - 16-Bit ADC Simplifies Current Measurements
LTC3458EDEPDF下载 点击下载 点击下载 DN331 - Dual 25μV Micropower Op Amp Fits in 3mm x 3mm Package
LTC3458EDEPDF下载 点击下载 点击下载 DN448 - 12-bit DAC in TSOT-23 Includes Bidirectional REF Pin for Connection to Op Amp or External High Precision Reference
LT Journal
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 Sep 2000 SOT-23 Voltage Reference Has 0.05% Initial Accuracy, 10ppm/°C Tempco, Operates on 35μA
数据表 (英文)
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 LT1790 - Micropower SOT-23 Low Dropout Reference Family
设计要点 (中文)
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 DN229 - 不要被电压基准长期漂移和迟滞所蒙蔽
LTC3458EDEPDF下载 点击下载 点击下载 DN341 - 16 位 ADC 简化了电流测量
LTC3458EDEPDF下载 点击下载 点击下载 DN331 - 25μV 微功率双路运算放大器安装在 3mm x 3mm 的封装中
可靠性数据
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 R373 Reliability Data
应用指南 (英文)
文档名称 文档类型 软件 描述
LTC3458EDEPDF下载 点击下载 点击下载 AN90 - Current Sources for Fiber Optic Lasers: A Compendium of Pleasant Current Events