RT8296A Datasheet, PDF (1/14 Pages) Richtek Technology Corporation – 3A, 23V, 340kHz Synchronous Step-Down Converter

RT8296A
3A, 23V, 340kHz Synchronous Step-Down Converter
General Description
Features
The RT8296A is a high efficiency, monolithic synchronous
step-down DC/DC converter that can deliver up to 3A
output current from a 4.5V to 23V input supply. The
RT8296A's current mode architecture and external
compensation allow the transient response to be
optimized over a wide range of loads and output capacitors.
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 and thermal shutdown. The low
current (<3μA) shutdown mode provides output
disconnect, enabling easy power management in battery
powered systems. The RT8296A is available in a
SOP-8 (Exposed Pad) package.
z ±1.5% High Accuracy Feedback Voltage
z 4.5V to 23V Input Voltage Range
z 3A Output Current
z Integrated N-MOSFET Switches
z Current Mode Control
z Fixed Frequency Operation : 340kHz
z Output Adjustable from 0.8V to 20V
z Up to 95% Efficiency
z Programmable Soft-Start
z Stable with Low ESR Ceramic Output Capacitors
z Cycle-by-Cycle Over Current Protection
z Input Under Voltage Lockout
z Output Under Voltage Protection
z Thermal Shutdown Protection
z RoHS Compliant and Halogen Free
Ordering Information
RT8296A
Applications
Note :
Package Type
SP : SOP-8 (Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Z : ECO (Ecological Element with
Halogen Free and Pb free)
H : UVP Hiccup
L : UVP Latch-Off
z Industrial and Commercial Low Power Systems
z Set Top Box
z LCD Monitors and TVs
z Green Electronics/Appliances
z Point of Load Regulation of High Performance DSPs
z Wireless AP/Router
Pin Configurations
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.
(TOP VIEW)
BOOT
VIN
SW
GND
8
2
7
GND
3
6
9
4
5
SS
EN
COMP
FB
Marking Information
RT8296AxGSP
RT8296Ax
GSPYMDNN
RT8296AxGSP : Product Number
x : H or L
YMDNN : Date Code
SOP-8 (Exposed Pad)
RT8296AxZSP
RT8296Ax
ZSPYMDNN
RT8296AxZSP : Product Number
x : H or L
YMDNN : Date Code
DS8296A-03 March 2011
www.richtek.com
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