RT2560Q
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
VCC
Supply Voltage Input.
No Internal Connection.
Regulator Output.
2, 4, 5, 6, 8
3
NC
VOUT
Ground. The exposed pad must be soldered to a large PCB and
connected to GND for maximum power dissipation.
7, 9 (Exposed Pad)
GND
Function Block Diagram
VOUT
VCC
GND
OCP
OTP
R1
R2
-
Bandgap
Reference
Operation
Current Limit
The RT2560Q is a high input voltage linear regulator
designed specially for low external components system.
The input voltage range is from 3.5V to 36V.
The RT2560Q provides current limit function to prevent
the device from damages during over-load or short-circuit
condition. This current is detected by an internal sensing
transistor.
The minimum required output capacitance for stable
operation is 1μF effective capacitance after consideration
of the temperature and voltage coefficient of the capacitor.
Over-Temperature Protection
The over-temperature protection function will turn off the
P-MOSFET when the junction temperature exceeds
150°C (typ.). Once the junction temperature cools down
by approximately 20°C, the regulator will automatically
resume operation.
Output Transistor
The RT2560Q builds in a P-MOSFET output transistor
which provides a low switch-on resistance for low dropout
voltage applications.
Error Amplifier
The ErrorAmplifier compares the internal reference voltage
with the output feedback voltage from the internal divider,
and controls the Gate voltage of P-MOSFET to support
good line regulation and load regulation at output voltage.
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS2560Q-01 February 2016
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
