RT2857B
Ordering Information
RT2857B
Pin 1 Orientation
***
(2) : Quadrant 2, Follow EIA-481-D
Package Type
QW : WQFN-14AL 3.5x3.5 (W-Type)
Marking Information
RT2857BHGQW
04= : Product Code
YMDNN : Date Code
04=YM
DNN
Lead Plating System
G : Green (Halogen Free and Pb Free)
RT2857BLGQW
UVP Trim Option
H : Hiccup
L : Latch-Off
Note :
***Empty means Pin1 orientation is Quadrant 1
Richtek products are :
�½
03= : Product Code
03=YM
DNN
YMDNN : Date Code
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
�½
Pin Configuration
(TOP VIEW)
RT/SYNC
PGOOD
14
13
12
1
GND
GND
PVIN
PVIN
VIN
2
3
4
5
6
7
15
8
GND
11
10
9
BOOT
LX
LX
EN
SS/TR
FB
WQFN-14AL 3.5x3.5
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
COMP
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS2857B-06
June 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
