®
RT2517B
1A, 6V, Ultra-Low Dropout Linear Regulator
General Description
The RT2517B is a high performance positive voltage
regulator designed for use in applications requiring ultra-
low input voltage and ultra-low dropout voltage at up to
1A. The feature of ultra-low dropout voltage is ideal for the
application where output voltage is very close to input
voltage. The input voltage can be as low as 2.2V and the
output voltage is adjustable by an external resistive divider.
The RT2517B provides an excellent output voltage
regulation over variations in line, load and temperature.
Current limit and thermal shutdown protection functions
are provided. Additionally, an enable pin is designed to
further reduce power consumption while shutdown and
the shutdown current is as low as 1.5μA.
The RT2517B is available in the SOP-8 (Exposed Pad)
package.
Features
AEC-Q100 Grade2 Certification
Input Voltage Range : 2.2V to 6V
V
OUT
Range from 1.2V to V
IN
−
V
DROP
Reference Voltage : 1.2V
±
2% over
−
40°C to 105°C
°
°
Ultra-Low Dropout Voltage : 200mV at 1A over
−
40°C to 105°C
°
°
Low Quiescent 1.5μA in Shutdown Mode
μ
Soft Discharge Functionality
Thermal Shutdown and Current Limit
RoHS Compliant and Halogen Free
Applications
Automotive Audio, Navigation, & Info systems
Industrial Grade General Purpose Point of Load
Digital Set top Boxes
Vehicle Electronics
Ordering Information
RT2517B
Package Type
SP : SOP-8 (Exposed Pad-Option 2)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
Marking Information
RT2517BGSP : Product Number
RT2517B
GSPYMDNN
YMDNN : Date Code
Pin Configuration
(TOP VIEW)
IC
EN
VIN
VIN
2
3
4
8
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.
GND
ADJ
VOUT
VOUT
�½
GND
9
7
6
5
SOP-8 (Exposed Pad)
Simplified Application Circuit
V
IN
C1
Enable
EN
GND
ADJ
R2
VIN
RT2517B
VOUT
R1
C2
V
OUT
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2517B-05
September 2018
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
