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Four-Phase, Quad 4A output DC-DC Step-Down Converter


Package | PIN: YFF | 35
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $4.77
10-24 $4.30
25-99 $4.00
100-249 $3.51
250-499 $3.29
500-749 $2.79
750-999 $2.36
1000+ $2.25


  • Fully Integrated Quad Buck, up to 4-A Programmable Maximum Output Current Per Buck
    • Auto PWM-PFM and Forced-PWM Operations
    • Programmable Output Voltage Slew Rate From 30 mV/µsto 0.5 mV/µs
    • Input Voltage Range: 2.5 V to 5.5 V
    • VOUT Range: 0.5 V to 3.36 V withDVS
  • Programmable Start-Up and Shutdown Sequencing With Enable Signal
  • I2C-Compatible Interface That Supports Standard (100 kHz), Fast (400 kHz),
    Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • Load Current Measurement
  • Output Short-Circuit and Overload Protection
  • Spread-Spectrum Mode for EMI Reduction
  • The Four Buck Cores Operate 90° out of Phase Thereby Reducing Input Ripple Current
  • Overtemperature Warning and Protection
  • Undervoltage Lockout (UVLO)

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Texas Instruments  LP8758A1E0YFFR

The LP8758-E0 device is designed to meet power managementrequirements for low-power processors in mobile phones, network cards, and similar applications.The device contains four step-down DC-DC converter cores, providing four output voltage rails. Thedevice is controlled by an I2C-compatible serial interface.

The automatic PWM-PFM (AUTO mode) operation maximizes efficiency over a wideoutput-current range.

The LP8758-E0 supports programmable start-up and shutdownsequencing synchronized to hardware Enable input signal.

The protection features include short-circuit protection, current limits, input supplyUVLO, and temperature warning and shutdown functions. Several error flags are provided for statusinformation of the device. In addition, the LP8758-E0 device supportsload current measurement without the addition of external current sense resistors. During start-upand voltage change, the device controls the output slew rate to minimize output voltage overshootand the inrush current.