APL5934 Datasheet, PDF (1/24 Pages) Anpec Electronics Coropration – 3A, Ultra Low Dropout (0.23V Typical) Linear Regulator

APL5934
3A, Ultra Low Dropout (0.23V Typical) Linear Regulator
Features
General Description
• Ultra Low Dropout
The APL5934 is a 3A ultra low dropout linear regulator.
- 0.23V(typical) at 3A Output Current
The IC needs two supply voltages, one is a control voltage
• Low ESR Output Capacitor (Multi-layer
(V ) for the control circuitry, the other is a main supply
CNTL
Chip Capacitors (MLCC)) Applicable
voltage (V_IN) for power conversion, to reduce power dissi-
• 0.8V Reference Voltage
• High Output Accuracy
pation and provide extremely low dropout voltage.
The APL5934/B integrates many functions. A Power-On-
Reset (POR) circuit monitors both supply voltages on
- ±1.5% over Line, Load, and Temperature Range _{VCNTL and VIN pins to prevent erroneous operations.}
• Fast Transient Response
The functions of thermal shutdown and current-limit pro-
• Adjustable Output Voltage
tect the device against thermal and current over-loads. A
• Power-On-Reset Monitoring on Both VCNTL and ^{POK indicates the output voltage status with a delay time}
VIN Pins
set internally. It can control other converter for power
• Internal Soft-Start
sequence. The APL5934/B can be enabled by other power
• Current-Limit and Short Current-Limit Protections ^{systems. Pulling and holding the EN/ENB voltage below}
• Thermal Shutdown with Hysteresis
• Open-Drain VOUT Voltage Indicator (POK)
0.4V shut/enable off the output.
The APL5934 is available in a SOP-8P package which
features small size as SOP-8 and an Exposed Pad to
• Low Shutdown Quiescent Current
reduce the junction-to-case resistance to extend power
• Shutdown/Enable Control Function
range of applications.
• Simple SOP-8P and TDFN3x3-10 Packages with
Exposed Pad
Applications
• Lead Free and Green Devices Available
(RoHS Compliant)
• Front Side Bus VTT (1.2V/3A)
• Note Book PC Applications
• Motherboard Applications
Simplified Application Circuit
V_CNTL
VCNTL
POK
EN
Enable
VCNTL
POK ^VIN
VOUT
APL5934/C
EN
FB
GND
V_IN
V_OUT
Optional
POK
ENB
Enable
VCNTL
POK ^VIN
VOUT
APL5934B/D
ENB
FB
GND
VIN
VOUT
Optional
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 - Mar., 2016
www.anpec.com.tw