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LT3990EDD#PBF

厂商:
Linear
类别:
DC/DC控制器
包装:
Tube
封装:
10-WFDFN Exposed Pad
无铅情况/ROHS:
无铅
描述:
具 2.5μA 静态电流和集成二极管的 60V、350mA 降压型...

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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 ~ 125°C
输出数 1
同步整流器 No
Vin Max (V) 60
New no
Ishutdown (uA) 0.7
Featured yes
Extended Temp E, I
内部开关 Yes
Frequency (kHz) 2200
Vout Maximum 25V
Tracking (yes/no) no
Frequency Adjust Range 200kHz - 2.2MHz
Synchronous (yes/no) no
Integrated Inductor (yes/no) no
Number of Outputs 1
Architecture Constant Frequency Current Mode
Vout Min (V) 1.21
Topology Buck
Monolithic (yes/no) yes
Output Current (A) 0.35
输入电压 4.2 ~ 62 V
输出电压 1.21 ~ 25 V
类型 Step-Down (Buck)
Vin Min (V) 4
Isupply (mA) 0.0017
Comments 60V, 350mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes
Packages MS-10, DFN-10
Date Added 2009-12-07
Price 1k * $2.55 (LT3990EDD#PBF)
开关频率 210kHz ~ 2.3MHz
输出电流 350mA
Features Burst Mode, Resistor Set Frequency, Power Good, Integrated Boost Diode
Switch Current (A) 0.7
Vout Max (V) 25
Frequency Sync Range

特点
50mA Output Current
Plug-In Compatible with ICL7660/LTC1044
R OUT =35 Ohms Maximum
300μA Maximum No Load Supply Current at 5V
Boost Pin (Pin 1) for Higher Switching Frequency
97% Minimum Open-Circuit Voltage Conversion Efficiency
95% Minimum Power Conversion Efficiency
Wide Operating Supply Voltage Range, 1.5V to 6V
Easy to Use
Low Cost

典型应用

典型应用

描述
The LTC?1046 is a 50mA monolithic CMOS switched capacitor voltage converter. It plugs in for the ICL7660/ LTC1044 in 5V applications where more output current is needed. The device is optimized to provide high current capability for input voltages of 6V or less. It trades off operating voltage to get higher output current. The LTC1046 provides several voltage conversion functions: the input voltage can be inverted (V OUT = μV IN ), divided (V OUT = V IN/ 2) or multiplied (V OUT = ?nV IN ).
Designed to be pin-for-pin and functionally compatible with the ICL7660 and LTC1044, the LTC1046 provides 2.5 times the output drive capability.

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