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 Configurations
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
Internal Regulator Output. Connect a 1F capacitor to GND to stabilize output
3
4
5
PVCC
RT
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.
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
VIN
7
8
Ground.
GND
Power Good Indicator Open-Drain Output.
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
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is a registered trademark of Richtek Technology Corporation.
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2
DS2810A/B-06 November 2016