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LP8733 数据表(PDF) 16 Page - Texas Instruments

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部件名 LP8733
功能描述  LP8733xx Dual High-Current Buck Converter and Dual Linear Regulator
PDF  84 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LP8733 数据表(HTML) 16 Page - Texas Instruments

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7 Detailed Description
7.1 Overview
The LP8733xx is a high-efficiency, high-performance flexible power supply device with two step-down DC/DC
converter cores (Buck0 and Buck1) and two low-dropout (LDO) linear regulators (LDO0 and LDO1) for
industrial applications. The cores can be configured for a two single-phase output and dual-phase single output
configuration. Table 7-1 lists the output characteristics of the regulators.
Table 7-1. Supply Specification
SUPPLY
OUTPUT
VOUT RANGE (V)
RESOLUTION (mV)
IMAX MAXIMUM OUTPUT CURRENT (mA)
Buck0 (single-phase)
0.7 to 3.36
10 (0.7 V to 0.73 V)
5 (0.73 V to 1.4 V)
20 (1.4 V to 3.36 V)
3000
Buck1 (single-phase)
0.7 to 3.36
10 (0.7 V to 0.73 V)
5 (0.73 V to 1.4 V)
20 (1.4 V to 3.36 V)
3000
Buck0 and Buck1
(dual-phase)
0.7 to 3.36
10 (0.7 V to 0.73 V)
5 (0.73 V to 1.4 V)
20 (1.4 V to 3.36 V)
6000
LDO0
0.8 to 3.3
100
300
LDO1
0.8 to 3.3
100
300
The LP8733xx also supports switching clock synchronization to an external clock (CLKIN pin). The nominal
frequency of the external clock can be from 1 MHz to 24 MHz with 1-MHz steps.
Additional features include:
• Soft-start
• Input voltage protection:
– Undervoltage lockout
– Overvoltage protection
• Output voltage monitoring and protection:
– Overvoltage monitoring
– Undervoltage monitoring
– Overload protection
• Thermal warning
• Thermal shutdown
The LP8733xx has one dedicated general purpose digital output (GPO) signal. The CLKIN pin can be
programmed as a second GPO signal (GPO2), if the external clock is not needed. The output type (open-drain
or push-pull) is programmable for the GPOs.
LP8733
SNVSBK2A – SEPTEMBER 2019 – REVISED JUNE 2021
www.ti.com
16
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: LP8733



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