RT6206B
Functional Pin Description
Pin No.
TSSOP-14
SOP-8
WDFN-10L 3x3
(Exposed Pad) (Exposed Pad)
1
--
--
Pin
Name
Pin Function
VOUT
Optional output voltage discharge connection. This
open drain output connects to ground when the
device is disabled. If output voltage discharge is
desired, connect VOUT to the output voltage.
Feedback voltage input. It is used to regulate the
output of the converter to a set value via an external
resistive voltage divider. The feedback threshold
voltage is 0.765V typically.
Internal regulator output. Connect a 1F capacitor to
GND to stabilize output voltage.
Soft-start time setting. Connect an external capacitor
between this pin and GND to set the soft- start time.
Analog ground.
Open drain power good indicator output.
Enable control input. A logic-high enables the
converter; a logic-low forces the IC into shutdown
mode reducing the supply current to less than 10A.
Power ground. The exposed pad must be soldered
to a large PCB and connected to PGND for
maximum power dissipation.
Switch node. Connect this pin to an external L-C
filter.
Bootstrap supply for high-side gate driver. Connect a
0.1F capacitor between the BOOT and SW pin.
Power input. The input voltage range is from 4.5V to
18V. Must bypass with a suitably large ( 10F x 2)
ceramic capacitor.
Internal linear regulator supply input. For the
TSSOP-14 (Exposed Pad) package, VINR supplies
power for the internal linear regulator that powers
the IC. Connect VIN to the input voltage and bypass
to ground with a 0.1F ceramic capacitor.
2
2
2
FB
3
4
5
6
7
3
4
--
--
1
3
4
--
5
1
VREG5
SS
GND
PGOOD
EN
8, 9, 15
5, 9
11
PGND
(Exposed Pad) (Exposed Pad) (Exposed Pad)
10, 11
12
13
6
7
8
6, 7
8
9, 10
SW
BOOT
VIN
14
--
--
VINR
Copyright
©
2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6206B-02 March 2017
www.richtek.com
3
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