RT6212A Datasheet, PDF (1/18 Pages) Richtek Technology Corporation – Step-Down Converter

RT6212A/B
2A, 18V, 500kHz, ACOT^TM Step-Down Converter
General Description
The RT6212A/B is a high-efficiency, monolithic
synchronous step-down DC-DC converter that can
deliver up to 2A output current from a 4.5V to 18V input
supply. The RT6212A/B adopts ACOT architecture to
allow the transient response to be improved and keep
in constant frequency. Cycle-by-cycle current limit
provides protection against shorted outputs and
soft-start eliminates input current surge during start-up.
Fault conditions also include output under-voltage
protection, output over-current protection, and thermal
shutdown.
Ordering Information
RT6212A/B ^{( )}
Package Type
J6F : TSOT-23-6 (FC)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Reference Voltage
None : V_REF = 0.8V
R : V_REF = 0.765V
UVP Option
H : Hiccup
PSM/PWM
A : PSM/PWM
B : Force-PWM
Features
 Integrated 163m/86m MOSFETs
 4.5V to 18V Supply Voltage Range
 500kHz Switching Frequency
 ACOT Control
 Feedback Reference Voltage 0.8V ± 1.5%
 Feedback Reference Voltage 0.765V ± 1.5%
 Internal Start-Up into Pre-Biased Outputs
 Compact Package : TSOT-23-6 Pin
 Input Under-Voltage Lockout
 Over-Current Protection and Hiccup
Applications
 Set-Top Boxes
 Portable TVs
 Access Point Routers
 DSL Modems
 LCD TVs
Marking Information
RT6212AHRGJ6F
2W=DNN
2W= : Product Code
DNN : Date Code
RT6212BHRGJ6F
2V=DNN
2V= : Product Code
DNN : Date Code
Note :
Richtek products are :
 RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering
processes.
RT6212AHGJ6F
0B=DNN
0B= : Product Code
DNN : Date Code
RT6212BHGJ6F
0A=DNN
0A= : Product Code
DNN : Date Code
Simplified Application Circuit
VIN
CIN
Enable
RT6212A/B
BOOT
VIN
LX
EN
FB
GND
CBOOT
L
R1
R2
CFF
VOUT
COUT
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
DS6212A/B-05 July 2017
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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