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RT6310A/AH Datasheet(PDF) 19 Page - Richtek Technology Corporation

Part # RT6310A/AH
Description  10A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO
PDF  54 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT6310A/AH Datasheet(HTML) 19 Page - Richtek Technology Corporation

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RT6310
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6310-04
August 2023
www.richtek.com
19
VIN_UVLO_ON = 4.4V
UVLO OK
PGOOD high
SS OK
VIN
VEN/MODE
VOUT
VPGOOD
VEN/MODE_H = 0.635V
EN/MODE OK
tSS = 2.9ms
tENDLY
VIN_ULVO_ON AND VEN/MODE_H
Enable SS counter
VCC
VOUT = 5.1V
LDO Bypass Switch
(VOUT to LDO)
10%VOUT
90%VOUT
VCC = VOUT
VCC Bypass Switch
(VOUT to VCC)
VOUT 4.7V AND SS OK AND UVLO OK AND
EN/MODE OK
VCC Bypass Switch on
VIN to LDO
VIN to VCC
VOUT 4.7V AND SS OK AND UVLO OK AND
EN/MODE OK
LDO Bypass Switch on
VLDO5
VOUT = 4.7V
VOUT to LDO
VOUT to VCC
VLDO5 = VOUT
Note
1. SS (soft-start ): soft-start wit h ramp
tR = 1.2ms
DEM: VEN/MODE 2.3V
USM: VEN/MODE = 0.88V~1.7V
Figure 6. Power On Sequence of RT6310C/CH : Ramping Up VIN Followed by VEN/MODE



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