RT6224C Datasheet, PDF (1/15 Pages) Richtek Technology Corporation – ACOT Synchronous Step-Down Converter

®
RT6224C
3A, 18V, 1.4MHz ACOT^TM Synchronous Step-Down Converter
General Description
The RT6224C is a high-efficiency, monolithic synchronous
step-down DC-DC converter that can deliver up to 3A output
current from a 4.3V to 18V input supply. The RT6224C
adopts ACOT^TM 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-voltage protection,
and thermal shutdown.
Ordering Information
RT6224C
Package Type
J6F : TSOT-23-6 (FC)
Lead Plating System
G : Green (Halogen Free and Pb Free)
UVP Option
H : Hiccup
PSM/PWM
C : PSM/PWM
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
 Small Output Voltage at Light Load
 High-Side Over-Current Limit
 Integrated 90mΩ/45mΩ MOSFETs
 4.3V to 18V Supply Voltage Range
 1.4MHz Switching Frequency
 ACOT^TM Control
 0.6V ±1.5% Voltage Reference
 Monotonic Start-Up into Pre-biased Outputs
Applications
 Set Top Box
 Portable TV
 Access Point Router
 DSL Modem
 LCD TV
Pin Configuration
(TOP VIEW)
SW VIN EN
6
5
4
2
3
BOOT GND FB
TSOT-23-6 (FC)
Simplified Application Circuit
V_IN
Enable
RT6224C
VIN
BOOT
SW
EN _GND FB
V_OUT
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS6224C-00 August 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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