APL5330 Datasheet, PDF (1/17 Pages) Anpec Electronics Coropration – Dual Input 2A Low Dropout Regulator

APL5330
Dual Input 2A Low Dropout Regulator
Features
General Description
• Fast Transient Response
• High Output Accuracy
- ±20mV over Load, Output Voltage Offset and
Temperature
• Adjustable Output Voltage by External
Resistors
• Current-Limit Protection
• On-Chip Thermal Shutdown
• Shutdown for Standby or Suspend Mode
• Simple SOP-8 and SOP-8 with Thermal Pad
Packages
• Lead Free Available (RoHS Compliant)
Applications
The APL5330 integrates a power transistor to provide
regulated voltage with maximum output current of 2A.
It also incorporates current-limit, thermal shutdown and
shutdown control functions into a single chip.
The current-limit circuit limits the maximum output
current in overload or short-circuit conditions.
The on-chip thermal shutdown provides protection
against any combination of overload that would create
excessive junction temperature. The output voltage of
the APL5330 tracks the reference voltage on VREF
pin. A resistor divider connected to VREF pin is
usually used to provide reference voltage to the IC. In
addition, an external ceramic capacitor and an open-drain
transistor connected to VREF pin provides soft-start and
shutdown control. Applying and holding a voltage below
0.35V (typ.) to VREF shuts off the output.
• VGA Card Power
• Chip Set Power
Pin Configuration
VIN
1
GND
2
VREF
3
VOUT
4
8
VCNTL
7
VCNTL
6
VCNTL
5
VCNTL
SOP-8 (Top View)
VIN
1
GND
2
VREF
3
VOUT
4
8 NC
7
NC
6
VCNTL
5
NC
SOP-8-P (Top View)
NC = No internal connection
= Thermal Pad
(connected to GND plane for better heat dissipation)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.1 - Jun., 2006
www.anpec.com.tw