L7292 Power management IC: five buck regulator power management unit

PublishTime：2021-11-05

L7292 is a power management device designed for consumer applications. Five buck regulators provide voltages for μController and Flash memory with efficiency up to 90% under light load conditions. The device communicates with the μController via an I²C serial interface operating at clock speeds up to 3.4 Mbit/s. The regulators operate at 1.3 MHz switching frequency and enter PFM operation automatically to maintain high efficiency over the entire load current range. The device can be forced in PWM mode by writing a bit in the serial port register.
Low quiescent current (e.g. All SW Reg ON with no load Iq= 175 μA). The L7292 has a DSM mode to reduce the quiescent current at the minimum value (1 x SW Reg ON with no load Iq= 60 μA).
■Features：
●Key specification
▲V-IN range from 2.7 V to 5.5 V
●Interface
▲Two-wire I2C serial interface supports
3.4 Mbit/s protocol (high-speed mode)
▲8 bit register bank
▲Random and sequential read modes
▲Automatic address incrementing
●Programmable buck regulators
▲Regulators with programmable DC set point and soft start
▲Buck regulators include integrated PMOS and NMOS switching elements
▲Up to 90% efficiency
▲PWM and PFM modes
▲Two pins to select four sets of DC voltages
▲± 1% feedback voltage accuracy
▲All regulators with auto discharge function on reset
▲Programmable bucks
●Support functions
▲128 bits EEPROM for: default Vout, power-up sequence, reset IC delay
time, regulator enable
▲Integrated voltage monitor with digital filters
▲Thermal protection
■Applications
●SSD (solid state drive)
●Mobile phone

Brand of Product：	ST
Part#：	L7292 More Part#
Product Category：	Power management IC 、 power management device 、 five buck regulator power management unit 、 Five buck regulators More
Application：	[ Mobile phone ][ SSD (solid state drive) ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	VQFN;QFN
Language：	English Chinese Chinese and English Japanese
Date of Creation：	July 2015
Version Number：	Rev 1
Data Encoding：	DocID028057
Data Size：	412 KB

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