ADI chip LT7182S series Application and Features

What is LT7182S?

LT7182S is Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management.

LT7182S Application:

1、Communications, Storage, and Industrial Systems
2、Data Center and Solid State Drive Power Supplies

LT7182S Features:

1、Silent Switcher^®2 Architecture: Enables Compact, Efficient, low EMI Solution
2、PMBus/I²C Serial Interface
2.1 Telemetry Read Back Includes V_OUT, I_OUT, _VIN, Die Temperature, Faults
2.2 Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, UV/OV, Phase, Frequency (Up to 4MHz), Loop Compensation
2.3 Integrated EEPROM with Fault Event Log
3、Key Parameters May Be Set by Configuration Resistors for Operation without Programming
4、±0.25% Output Voltage Accuracy Over Temperature for 0.6V to 1.375V
5、PolyPhase Load Sharing for Up to Eight Phases
6、Wide VIN Range: Down to 2.9V, or 1.5V with EXT_VCC
7、Up to 95% Efficiency at 1MHz, 12VIN to 3.3V_OUT
8、V_OUT Range 0.4V to 5.5V (Up to 0.85 • V_IN)
9、Differential Remote V_OUT Sense
10、External Frequency Synchronization
11、40-lead (5mm × 7mm) LQFN Package

LT7182S Description:

The LT7182S is a dual-output monolithic PolyPhase DC/DC synchronous step-down regulator. It can deliver up to 6A of continuous current from both channels simultaneously and can support loads up to 8A from either channel. The LT7182S features the second generation Silent Switcher® architecture with integrated VIN bypass capacitors for fast, clean, low-overshoot switching edges delivering high efficiency at high switching frequencies while minimizing EMI emissions.

The I2C-based PMBus 1.3 compliant serial interface enables control of device functions and provides telemetry information for system monitoring. The LT7182S is supported by the LTpowerPlay® graphical user interface tool.

Output voltage, frequency, phase, and device address can be configured using resistors for operation without programming. Settings may also be written via the serial interface and/or stored in EEPROM.

The controlled on-time valley current mode control architecture with 20ns (typical) minimum on-time enables high switching frequency at low output voltage with excellent transient response in a small overall solution size.

LT7182S Image

Order model list

1、LT7182SRV#PBF