RT2810A/B
Marking Information
RT2810AHGQUF
7H= : Product Code
RT2810BLGQUF
7E= : Product Code
YMDNN : Date Code
7H=YM
DNN
7E=YM
DNN
YMDNN : Date Code
RT2810ALGQUF
7G= : Product Code
Pin Configuration
(TOP VIEW)
RLIM
SW
14
16
15
AGND
SW
13
12
11
10
9
EN
7G=YM
DNN
YMDNN : Date Code
1
2
3
4
5
6
7
SW
SW
SW
BOOT
RT2810BHGQUF
7F= : Product Code
FB
PVCC
RT
UQFN-16JL 3x3 (FC)
Functional Pin Description
Pin No.
1
2
3
4
5
6
7
8
Pin Name
AGND
FB
PVCC
RT
SS
VIN
GND
PGOOD
Analog ground.
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.
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.
Power input. The input voltage range is from 4.5V to 18V. Must bypass with a suitably
large (10F x 2) ceramic capacitor.
Ground.
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.
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.
Switch node. Connect this pin to an external L-C filter.
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.
An external resistor adjusts the current limit of the device.
Pin Function
9
10 to 14
15
16
BOOT
SW
EN
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
PGOOD
VIN
GND
SS
7F=YM
DNN
YMDNN : Date Code
8
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
