RT2517B
Functional Pin Description
Pin No.
1
2
3,4
5,6
7
Pin Name
IC
EN
VIN
VOUT
ADJ
Pin Function
Internal connection. Leave floating and do not make connection to this pin.
Enable control input. Connecting this pin to logic high enables the regulator or
driving this pin low puts it into shutdown mode. EN can be connected to VIN if not
used. (EN pin is not allowed to be left floating)
Supply voltage input. Connect a minimum 10F ceramic capacitor at this pin.
Output voltage. A minimum 10F capacitor should be placed directly at this pin.
Feedback voltage input. Connect an external resistor divider to this pin for output
voltage setting. If this pin is connected to the VOUT pin, the output voltage will be
set at 1.2V.
Ground. The exposed pad must be soldered to a large PCB and connected to GND
for maximum the power dissipation.
8,
GND
9 (Exposed pad)
Functional Block Diagram
R
SENSE
VIN
V
PUMP
-
+
VOUT
-
+
ADJ
V
IN
EN
Thermal
Shutdown
V
OUT
V
IN
+
-
V
IN
Reference
Generator
GND
Reverse Voltage
Shutdown
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS2517B-05
September 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
