RT2810A/B
Marking Information
RT2810AHGQUF
RT2810BLGQUF
7H= : Product Code
7E= : Product Code
YMDNN : Date Code
YMDNN : Date Code
7H=YM
7E=YM
DNN
DNN
RT2810ALGQUF
Pin Configuration
7G= : Product Code
(TOP VIEW)
YMDNN : Date Code
7G=YM
DNN
16 15 14
13
1
12
11
10
9
AGND
FB
SW
2
3
4
SW
RT2810BHGQUF
PVCC
RT
SW
7F= : Product Code
BOOT
YMDNN : Date Code
7F=YM
7
5
6
8
DNN
UQFN-16JL 3x3 (FC)
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
Analog ground.
AGND
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 reference voltage is 0.7V
typically.
2
FB
3
4
PVCC
RT
Internal regulator output. Connect a 1F capacitor to GND to stabilize output voltage.
An external timing resistor adjusts the switching frequency of the device.
Soft-start time setting. An external capacitor should be connected between this pin
and GND.
5
SS
Power input. The input voltage range is from 4.5V to 18V. Must bypass with a suitably
large (10F x 2) ceramic capacitor.
6
7
VIN
Ground.
GND
Power good indicator open-drain output. After PVCC voltage raising up, it is pulled
low if the feed-back voltage is out of PGOOD threshold after soft start is finished, IC
shutdown from OTP and EN goes low. The PGOOD should be pulled high to PVCC
through a pull-up resistor if this function is used.
8
PGOOD
Bootstrap. This capacitor is needed to drive the power switch's gate above the supply
voltage. It is connected between SW and BOOT pins to form a floating supply across
the power switch driver. A 0.1F capacitor is recommended for use.
9
BOOT
10 to 14
15
Switch node. Connect this pin to an external L-C filter.
SW
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.
EN
16
An external resistor adjusts the current limit of the device.
RLIM
Copyright 2019 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS2810A/B-07 April 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
