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APW8802 Datasheet Preview

APW8802 Datasheet

High Input Voltage 8A PWM DC/DC Converter

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APW8802
High Input Voltage 8A PWM DC/DC Converter
Features
General Description
Operates from An Input Battery Voltage Range of
+3V to +25V
±1.6% 0.75V Reference
- Over Line, Load Regulation, and Operating Temp.
High Efficiency all Over 90% at VOUT=1V, VIN=19V
Condition
Power-On-Reset Monitoring on PVCC and VCC Pins
Excellent Line and Load Transient Responses
Integrated 12m@ VCC=5V N-Channel MOSFET
For High Side
Integrated 12m@ VCC=5V N-Channel MOSFET
For Low Side
Programmable PWM Frequency from 100kHz to
500kHz
Built-in 1.2ms Digital Soft-Start & Soft-Stop
Built-in COT Mode Control for Fast Response and
MLCC Supports
Power Good Monitoring
70% Under-Voltage Protection
125% Over-Voltage Protection
Adjustable Current-Limit Protection
- Using Built-in Low-Side MOSFET’s R
DS(ON)
Over-Temperature Protection
TQFN5x6-28 (Power PAK) Package
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Notebook
Table PC
Hand-Held Portable
AIO PC
The APW8802 is a 8A, synchronous, step-down converter
with integrated 12mN-channel High-Side MOSFET and
12mLow-Side MOSFET. The APW8802 steps down
high voltage to generate low-voltage chipset or RAM sup-
plies in notebook computers.
The APW8802 provides excellent transient response and
accurate DC voltage output in either PFM or PWM Mode.
In Pulse Frequency Mode (PFM), the APW8802 provides
very high efficiency over light to heavy loads with loading-
modulated switching frequencies. In PWM Mode, the con-
verter works nearly at constant frequency for low-noise
requirements.
The APW8802 is equipped with accurate current-limit,
output under-voltage, and output over-voltage protections,
perfect for NB applications. A Power-On-Reset function
monitors the voltage on VPVCC and VCC to prevent wrong
operation during power-on. The APW8802 has a 1.2ms
digital soft-start and built-in an integrated output discharge
device for soft-stop. An internal integrated soft-start ramps
up the output voltage with programmable slew rate to
reduce the start-up current. A soft-stop function actively
discharges the output capacitors.
The APW8802 is available in TQFN5x6-28 (Power PAK)
package.
Simplified Application Circuit
5V
PVCC
VCC BOOT
LX
EN
ROCSET
TON
OCSET FB
APW8802
VIN
LOUT
RTON
VOUT
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.3 - Jan., 2013
1
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/




ANPEC

APW8802 Datasheet Preview

APW8802 Datasheet

High Input Voltage 8A PWM DC/DC Converter

No Preview Available !

APW8802
Ordering and Marking Information
APW8802
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
QB : TQFN5x6-28
Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APW8802 QB :
APW8802
XXXXX
XXXXX - Date Code
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
FB 1
POK 2
GND 3
PGND 4
PGND 5
NC 6
NC 7
LX 8
PGND
VIN
LX
22 PGND
21 BOOT
20 VIN
19 VIN
18 VIN
17 LX
16 LX
15 LX
TQFN5x6-28
(Top View)
= Thermal Pad (connected to GND plane for better heat dissipation)
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Jan., 2013
2
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/


Part Number APW8802
Description High Input Voltage 8A PWM DC/DC Converter
Maker ANPEC
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APW8802 Datasheet PDF





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