MaxLinear

XRP7740 Modulated Step-Down DC-DC Controller

XRP7740 from MaxLinear a complete power management system on a single chip

Image of Exar Corporation's XRP7740 Modulated (PWM) Step-Down DC-DC ControllerMaxLinear's XRP7740 is a quad-output, pulse-width modulated (PWM) step-down DC/DC controller with a built-in LDO for standby power and GPIOs. Fully programmable via the included I2C serial interface, this device provides a complete power management solution in a single IC. Independent digital pulse width modulator (DPWM) channels regulate output voltages and provide required protection functions such as current limiting and overvoltage protection.

Features
  • Four switching buck (step-down) controllers, each with internal FET drivers. Two controllers (2 and 4) support loads up to 15 A; two controllers (1 and 3) support loads up to 5 A
  • High integration: elimination of external circuits and components required for compensation, parameter adjustment, and interface
  • Programmable DPWM frequency range (300 kHz to 1.5 MHz) enables efficiency and component size optimization
  • Independent digital pulse width modulator (DPWM) channels with five coefficient PID controls
  • Output voltages programmable from 0.9 V to 5.1 V
  • Complete power monitoring and reporting
  • Up to 6 reconfigurable GPIO pins
  • Overtemperature protection (OTP), undervoltage lockout (UVLO), per-channel overcurrent protection (OCP), and overvoltage protection (OVP)
  • Independently controlled startup delay and ramp for each regulator, including soft start with a pre-biased load voltage
  • Independently controlled soft-stop delay and ramp for each regulator with a programmable stop voltage
  • 6.5 V to 20 V input voltage range – no additional voltage rails required
  • Built-in LDO (configurable to 3.3 V or 5 V) with overcurrent protection
  • Non-volatile memory for system configuration
  • Fully programmable via I2C interface
  • Configuration development tools
Applications
  • Industrial: ATE, DC/DC converters, video processing
  • Networking and telecommunications equipment
  • Plasma display panels (PDPs) 
  • Consumer: set-top boxes (STB), game systems
  • Computing: servers, storage systems

XRP7740 Modulated Step-Down DC-DC Controller

图片制造商零件编号描述可供货数量价格
EVAL BOARD FOR XRP7740XRP7740EVBEVAL BOARD FOR XRP77402 - 立即发货$518.17查看详情
IC REG 5OUT BUCK/LNR SYNC 40TQFNXRP7740ILB-FIC REG 5OUT BUCK/LNR SYNC 40TQFN980 - 立即发货$124.86查看详情
发布日期： 2011-05-04

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