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ANPEC

APW8820 Datasheet Preview

APW8820 Datasheet

System Power PWM Controller

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APW8820
System Power PWM Controller for Notebook Computers
Features
General Description
Built in 2 PWM Controller into single chip
The APW8820 offers a compact power supply solution to
High Input Battery Voltage Range from 5.5V to 28V provide 2 voltages required by notebook application. The
Fixed 1.0MHz Switching Frequency for Individual 2 PWM controllers use current-mode scheme with phase
Channel
shift 180 degrees control scheme allow to use MLCC
Built in Programmable Inductor DCR Sense For output capacitors. The higher fixed 1MHz switching fre-
Inductor Current Sense Function
quency allows to use thin and small filtered components.
Built in Current Mode Control with fully Support The APW8820 provides good transient response and
accurate DC output voltage in either PSM or PWM Mode.
MLCC Output Capacitor
In Pulse Skipping Modulation Mode (PSM), the APW8820
Built in 180 degrees Phase Shift Function
provides high efficiency over light to heavy loads with load-
Built in PWM/PSM/Ultra Sonic PFM (25kHz) Control ing modulated switching frequencies. The unique ultra-
Schemes
sonic mode maintains the switching frequency above
Built in Internal 5V/175mA and 3.3V/50mA Linear 25kHz, which eliminates noise in audio applications. The
Regulators
APW8820 built in individual enable control input on 2 chan-
0.5V Reference Voltage
nels for flexible power sequence adjustment. The power-
Built in Digital Soft-start
good outputs (SYSPOK) indicate the operating mode of
Latch Off Mode for Both Channels
the PWMx.
Over-Temperature Protection
The APW8820 has been equipped with excellent protec-
Built in SYSPOK Report function for 2 PWM tion functions: Power-on-RESET (POR), over-current pro-
Channels
tection (OCP), over-voltage protection OVP, under-volt-
Available in TQFN4x4-24 and QFN3x3-20 Package age protection (UVP) and over-temperature protection
Halogen and Lead Free Available (RoHS Compliant) (OTP) to prevent the device operate under abnormal con-
dition or adjacent pin shortage.
Applications
NB
The APW8820 is available in TQFN4x4-24 and QFN3x3-
20 package.
Simplified Application Circuit
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.
Rev. A.1 - Dec., 2012
1
www.anpec.com.tw
Free Datasheet http://www.datash




ANPEC

APW8820 Datasheet Preview

APW8820 Datasheet

System Power PWM Controller

No Preview Available !

APW8820
Ordering and Marking Information
Assembly Material
G : Halogen and Lead Free Device
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Pin Configuration
GND
CSP5
FB5
COMP5/SD
COMP3/SD
FB3
1
2
3
4
5
GND
15 LGATE5
14 LDO5
13 LDO3
12 VIN
11 LGATE3
Copyright © ANPEC Electronics Corp.
Rev. A.1 - Dec., 2012
2
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/


Part Number APW8820
Description System Power PWM Controller
Maker ANPEC
PDF Download

APW8820 Datasheet PDF





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