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LT3990EMSE#TRPBF

厂商:
Linear
类别:
DC/DC控制器
包装:
Tape & Reel (TR)
封装:
16-MSOP 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
内部开关 Yes
同步整流器 No
开关频率 210kHz ~ 2.3MHz
输出数 1
输入电压 4.2 ~ 62 V
输出电压 1.21 ~ 25 V
输出电流 350mA
工作温度 -40°C ~ 125°C
安装类型 Surface Mount
类型 Step-Down (Buck)
Number of Outputs 1
Vin Min (V) 4
Vin Max (V) 60
Output Current (A) 0.35
Vout Min (V) 1.21
Frequency (kHz) 2200
Synchronous (yes/no) no
Packages MS-10, DFN-10
Features Burst Mode, Resistor Set Frequency, Power Good, Integrated Boost Diode
Isupply (mA) 0.0017
Ishutdown (uA) 0.7
Monolithic (yes/no) yes
Tracking (yes/no) no
Integrated Inductor (yes/no) no
Switch Current (A) 0.7
Topology Buck
Architecture Constant Frequency Current Mode
Vout Max (V) 25
Vout Maximum 25V
Frequency Adjust Range 200kHz - 2.2MHz
Frequency Sync Range
Extended Temp E, I
Comments 60V, 350mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes
Featured yes
Date Added 2009-12-07
Price 1k * $2.55 (LT3990EDD#PBF)
New no

Freescale Semiconductor's MPC8360E PowerQUICC II™ Pro family of integrated communications processors is a next-generation extension of the popular PowerQUICC II line containing cores built on Power Architecture technology. The MPC8360E family incorporates a next-generation communications engine, the QUICC™ Engine, supporting a wide range of protocols, including Gigabit Ethernet and OC-12 asynchronous transfer mode (ATM)/Packet over Sonet (POS). Additional enhancements include the e300 core (enhanced version of the 603e™ core with larger caches), scaling up to 667 MHz, a DDR memory controller and the integrated security engine.

The MPC8360E PowerQUICC II Pro communications processor's advanced features make it suitable for today's and tomorrow's wired and wireless access equipment, as well as small and medium enterprise networking equipment. Target applications include multitenant units (MTUs), digital subscriber line access multiplexers (DSLAMs), wireless basestations, multi and fixed subscriber access nodes, add/drop multiplexers and routers.

The MPC8358E processor, a member of the MPC8360E PowerQUICC II Pro family, is pin-compatible with the MPC8360E (TBGA only). The MPC8358E offers a cost-effective, low-power processing solution that meets the performance requirements for broadband access applications, such as small-to-medium enterprise (SME) routers, low-end DSLAMs and IP private automatic branch exchange (PABX) systems.

e300 System-on-a-Chip Platform
The MPC8358E PowerQUICC II Pro family is based on the e300 system-on-a-chip (SoC) platform. This makes it easy and fast to add or remove functional blocks and develop additional SoC-based family members for emerging markets. At the heart of the e300 SoC platform is Freescale's e300 core built on Power Architecture technology. The e300 core is an enhanced version of the 603e core used in previous-generation PowerQUICC II processors.

Enhancements include twice as much L1 cache (32 KB data cache and 32 KB instruction cache) with integrated parity checking and other performance-enhancing features. The e300 core is software-compatible with existing 603e core-based products.

Connectivity
The MPC8360E processor is designed to support a wide range of communications interfaces, such as MII, RMII, GMII, TBI, RTBI, NMSI, UTOPIA, POS and TDM. The DDR memory controller helps to ensure high-speed memory access and a local system bus operating up to 133 MHz. Additional system connectivity is supplied by dual UART, dual inter-integrated circuit (I2C), dual serial peripheral interface (SPI), PCI interfaces and Universal Serial Bus (USB) interface (USB 2.0 full-/low-speed compatible).

Integrated Security The MPC8360E and MPC8358E processors feature integrated security with the powerful integrated security engine derived from Freescale's security coprocessor product line. Integrated security supports DES, 3DES, MD-5, SHA-1, AES and ARC-4 encryption algorithms, as well as a public key accelerator and an on-chip random number generator. The integrated security engine is capable of single-pass encryption and authentication, as required by IPsec, the IEEE® 802.11i standard and other security protocols.

Typical Applications
DSL infrastructure
  • DSLAMs
  • MTUs
Add/drop multiplexers and digital cross connects

Multiservice access nodes (MSAN)
 
Wireless infrastructure

    设计要点 (英文)
    文档名称 文档类型 软件 描述
    LT3990EMSE#TRPBFPDF下载 点击下载 点击下载 DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System
    设计要点 (中文)
    文档名称 文档类型 软件 描述
    LT3990EMSE#TRPBFPDF下载 点击下载 点击下载 DN447 - 10Gbit/s GPON 系统的完整,紧凑型 APD 偏置解决方案
    LTspice
    文档名称 文档类型 软件 描述
    LT3990EMSE#TRPBFPDF下载 点击下载 点击下载 LT3482 Demo Circuit - 90V Boost DC/DC Converter for APD Bias (5V to 85V @ 2.5mA)
    数据表 (英文)
    文档名称 文档类型 软件 描述
    LT3990EMSE#TRPBFPDF下载 点击下载 点击下载 LT3482 - 90V Boost DC/DC Converter with APD Current Monitor
    可靠性数据
    文档名称 文档类型 软件 描述
    LT3990EMSE#TRPBFPDF下载 点击下载 点击下载 R530 - Reliability Data