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LP8733 датащи(PDF) 17 Page - Texas Instruments

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номер детали LP8733
подробное описание детали  LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
PDF  85 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

LP8733 датащи(HTML) 17 Page - Texas Instruments

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UVLO
SW
Reset
Digital
Logic
Registers
I2C
Enable/
Disable,
Delay
Control
Slew-Rate
Control
Interrupts
nINT
SDA
SCL
EN
VANA
OTP
EPROM
Thermal
Monitor
Oscillator
Buck0
ILIM Det
Pwrgood Det
Overload and
SC Det
Buck1
LDO0
LDO1
ILIM Det
Pwrgood Det
Overload and
SC Det
ILIM Det
Pwrgood Det
Overload
and SC Det
ILIM Det
Pwrgood Det
Overload
and SC Det
Ref &
Bias
Iload ADC
Iload ADC
CLKIN (GPO2)
PGOOD
GPO
Copyright © 2016, Texas Instruments Incorporated
17
LP8733-Q1
www.ti.com
SNVSB64 – SEPTEMBER 2018
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
7.2 Functional Block Diagram
7.3 Feature Description
7.3.1 DC/DC Converters
7.3.1.1 Overview
The LP8733xx-Q1 includes two step-down DC/DC converter cores. The cores are designed for flexibility; most of
the functions are programmable, thus giving a possibility to optimize the regulator operation for each application.
The cores can be configured either for a dual-phase single output configuration or for a single-phase dual output
configuration. The buck regulators deliver 0.7-V to 3.36-V regulated voltage rails from a 2.8-V to 5.5-V supply
voltage.
The LP8733xx-Q1 has the following features:
•
DVS support with programmable slew rate
•
Automatic mode control based on the loading (PFM or PWM mode)
•
Forced PWM mode option
•
Optional external clock input to minimize crosstalk
•
Optional spread-spectrum technique to reduce EMI
•
Phase control for optimized EMI
•
Synchronous rectification
•
Current mode loop with PI compensator
•
Soft start



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