Buck Converter. RT6223 Datasheet


RT6223 Converter. Datasheet pdf. Equivalent


Part Number

RT6223

Description

Synchronous Buck Converter

Manufacture

Richtek

Total Page 18 Pages
Datasheet
Download RT6223 Datasheet


RT6223
®
RT6223
6A, 23V, 500kHz, ACOTTM Synchronous Buck Converter
General Description
The RT6223 is a synchronous Buck converter with
Advanced Constant On-Time (ACOTTM) mode control,
which provides a very fast transient response with no
external compensators. The RT6223 operates from 4.5V
to 23V input voltage, provides complete protection
functions including Over Current Protection (OCP), Under
Voltage Protection (UVP) and Over Voltage Protection
(OVP). This IC also provides a 1.5ms internal soft-start
function and an open-drain power good indicator.
Ordering Information
RT6223
Package Type
QUF : UQFN-16L 3x3 (FC) (U-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
PWM Operation / VOUT Protection
A : with DEM/Latch
AH : with DEM/Hiccup
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Features
4.5V to 23V Input Voltage Range
Adjustable from 0.6V to 5V Output Range
Up to 98% Duty for 2S Battery Application
500kHz Switching Frequency
ACOTTM Mode Performs Fast Transient Response
Integrated MOSFETs
31mΩ of High-Side MOSFET
20mΩ of Low-Side MOSFET
Supports MLCC Output Capacitors
Internal Soft-Start (1.5ms typ)
Built-in OVP/UVP/OCP
Power Good Indicator
Thermal Shutdown
Applications
Laptop Computers
Tablet PCs
Networking Systems
Servers
Personal Video Recorders
Flat Panel Television and Monitors
Distributed Power Systems
Simplified Application Circuit
VIN
Chip Enable
VCC
CVCC
CIN
CEN
RPGOOD
VIN
RT6223
EN
PGOOD
VCC
PGND
BOOT
SW
VOUT
FB
NC
AGND
CB L
VOUT
R1 COUT
R2
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS6223-00 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1

RT6223
RT6223
Marking Information
RT6223AGQUF
9J= : Product Code
9J=YM
DNN
YMDNN : Date Code
RT6223AHGQUF
9H= : Product Code
9H=YM
DNN
YMDNN : Date Code
Pin Configurations
(TOP VIEW)
14 13 12 11 10
VIN 1
15 9 SW
PGND 2
SW
16
SW
8 SW
34567
UQFN-16L 3x3 (FC)
Functional Pin Description
Pin No. Pin Name
Pin Function
1 VIN
Power Input Connect to High-Side MOSFET Drain.
2
3, 5, 6
4
PGND
NC
PGOOD
Power Ground.
Connect this pin to AGND. Do not connect to external voltage source higher than
1V.
Open-Drain Power Good Indicator Output.
14 AGND Analog Ground.
7
VOUT
Output Voltage Sense Input. An internal discharging circuit is connected to this pin.
8, 9, 15, 16 SW
Switch Node.
Bootstrap Supply for High-Side Gate Driver. A capacitor is needed to drive the power
10 BOOT switch's gate above the supply voltage. It is connected between the SW and BOOT
pins to form a floating supply across the power switch driver.
11 VCC
5V Linear Regulator Output for Internal Control Circuit. Bypass VCC to PGND with a
2.2F capacitor. VCC can only supply internal circuits. Do not connect to external
loads.
12 FB
Feedback Voltage Input.
13 EN
Enable Control Input. Do not leave this pin floating. The slew rate of EN is
recommended to be slower than 4.8V/s.
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS6223-00 April 2016


Features ® RT6223 6A, 23V, 500kHz, ACOTTM Synch ronous Buck Converter General Descript ion The RT6223 is a synchronous Buck co nverter with Advanced Constant On-Time (ACOTTM) mode control, which provides a very fast transient response with no e xternal compensators. The RT6223 operat es from 4.5V to 23V input voltage, prov ides complete protection functions incl uding Over Current Protection (OCP), Un der Voltage Protection (UVP) and Over V oltage Protection (OVP). This IC also p rovides a 1.5ms internal soft-start fun ction and an open-drain power good indi cator. Ordering Information RT6223 Pack age Type QUF : UQFN-16L 3x3 (FC) (U-Typ e) Lead Plating System G : Green (Halog en Free and Pb Free) PWM Operation / VO UT Protection A : with DEM/Latch AH : w ith DEM/Hiccup Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/J EDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Features  4.5V to 23V Input Voltage Range  Adjustable from 0.6V to.
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