LT7176: 24A/4V Single- or Two-Phase Silent Switcher Buck Regulator with Digital Power System Management Features | NEXTY Electronics, a distributor of electronic components and semiconductors

The LT7176/LT7176-1 are monolithic PolyPhase DC/DC synchronous rectification step-down regulators capable of continuously delivering up to 24 A of current.The LT7176-1 option features two SWITCHES ng phases, which are connected to two INDUCTORS to drive a single stabilized output POWER SUPPLIES. Fast, clean, and low-overshoot SWITCHES ng edges enable high efficiency while minimizing electromagnetic interference (EMI) emissions. ^{An I2C-based, PMBus} 1.3-compliant serial interface allows control of device functions while providing telemetry information for system monitoring. The LT7176/LT7176-1 is compatible with the LTpowerPlay® graphical user interface (GUI) tool.
On-time-controlled valley current-mode control with a minimum on-time of 25 ns (typical) enables high-SWITCHES ing frequency (_fSW) operation at low output voltages (_VOUT), resulting in excellent transient response and a compact overall solution size.
_VOUT, _fSW, and phase can be selected using external setting resistors. Settings can be configured via the PMBus interface or stored in the on-chip non-volatile memory (NVM), which can be programmed three times.

Features

Silent Switcher® (SWITCHES) Architecture: Enables Compact, Efficient, Low-EMI Solutions
PMBus ^{/I2C Serial} Interface
- Telemetry readback, including _VOUT, _IOUT, _VIN, die temperature, and fault detection
- Programmable voltage and current limits, sequencing, soft start/stop, under-voltage and over-voltage protection, phase, frequency (up to 3 MHz), and loop compensation
- Built-in NVM with 3 write cycles
Key parameters can be set using resistors
_{VOUT setpoint} range: 0.3 V to 3.4 V
_{VOUT Accuracy}: ±0.25%, 0.6 V ≤ _{VOUT ≤} 1.375 V
PolyPhase Load Balancing for Up to 4 Devices
The optional pulse-skipping mode enables low quiescent current
Differential Remote Detection of _VOUT
High-Speed Transient Response
Wide _VIN POWER SUPPLIES; Voltage range: minimum 2.7 V, or 1.5 V when using _EXTVCC
Programmable and synchronizable: 1 MHz to 3 MHz
30-pin (3.5 mm × 4 mm) LQFN