RT6296A
Pin Configuration
(TOP VIEW)
EN/SYNC
6
3
8
7
2
VIN
SW
TSOT-23-8 (FC)
Functional Pin Description
Pin No.
Pin Name
Pin Function
Transition threshold. The TTH voltage sets the transition point from power
saving mode (PSM) to PWM. Connect the tap of 2 resistor dividers to force the
RT6296A into non-synchronous mode under light loads. Connect TTH pin high
(PVCC) to force the RT6296A into forced PWM mode. Don’t leave this pin
floating.
Power input. Support 4.5V to17V Input Voltage. Must bypass with a suitable
large ceramic capacitor at this pin.
Switch node. Connect to external L-C filter.
System ground.
Bootstrap supply for high-side gate driver. Connect a 0.1F ceramic capacitor
between the BOOT and SW pins.
Enable control input. High = Enable. Apply an external clock to adjust the
switching frequency. If using pull high resistor connected to VIN, the
recommended value range is 60k to 300k.
5V bias supply output. Connect a minimum of 0.1F capacitor to ground.
Feedback voltage input. The pin is used to set the output voltage of the
converter to regulate to the desired voltage via a resistive divider. Feedback
reference = 0.8V.
1
TTH
2
3
4
5
6
7
8
VIN
SW
GND
BOOT
EN/SYNC
PVCC
FB
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
GND
is a registered trademark of Richtek Technology Corporation.
TTH
BOOT
5
4
PVCC
FB
DS6296A-04
January 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
