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PWM Converter. APW8713A Datasheet |
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APW8713A
High Input Voltage 8A PWM Converter With Adj. Soft Start
Features
General Description
• Adjustable Output Voltage from +0.8V to +12V
The APW8713A is a 8A, synchronous, step-down con-
- 0.8V Reference Voltage
verter with integrated 30mΩ N-channel High-Side
- +1% Accuracy over Temperature
MOSFET and 9mΩ Low-Side MOSFET. The APW8713A
• Operates from An Input Battery Voltage Range of steps down high voltage to generate low-voltage chipset
+2.7V to +28V
or RAM supplies in notebook computers.
• 20mA Low Dropout Regulator (LDO) with Fixed 5. The APW8713A provides excellent transient response and
3V Output
accurate DC voltage output in either PFM or PWM Mode.
• Power-On-Reset Monitoring on LDO pin
In Pulse Frequency Mode (PFM), the APW8713A provides
very high efficiency over light to heavy loads with loading-
• Excellent line and load transient responses
modulated switching frequencies. In PWM Mode, the con-
• PFM mode for increased light load efficiency
verter works nearly at constant frequency for low-noise
• Programmable PWM Frequency from 100kHz to requirements.
1000kHz
The APW8713A is equipped with accurate current-limit,
• Integrated 30mΩ at LDO=5V N-Channel MOSFET output under-voltage, and output over-voltage protections,
For High Side
perfect for various applications. A Power-On-Reset func-
• Integrated 9mΩ at LDO=5V N-Channel MOSFET For tion monitors the voltage on VLDO to prevent wrong
Low Side
operation during power-on. The APW8713A has external
• Integrated Bootstrap Forward P-CH MOSFET
adjustable soft-start and built-in an integrated output dis-
charge method for soft stop. A soft-start ramps up the
• External Adjustable Soft-Start and Soft-Stop
output voltage with programmable timing to reduce the
• Selectable Forced PWM or automatic PFM/PWM start-up current. A soft-stop function actively discharges
mode
the output capacitors.
• Power Good Monitoring
The APW8713A is available in TQFN4x4-23 (Power PAK).
• 70% Under-Voltage Protection
• 125% Over-Voltage Protection
• Current-Limit Protection
Applications
- Using Sense Low-Side MOSFET’s RDS(ON)
• Over-Temperature Protection
• TQFN-23 4mmx4mm package
• Lead Free and Green Device Available (RoHS
Compliant)
• Notebook
• Mother Board
• Table PC
• Hand-Held Portable
• AIO PC
• Set-top boxes
• LCD TV
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 - Oct., 2013
1
www.anpec.com.tw
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APW8713A
Simplified Application Circuit
LDO
RPOK
POK
H/L
CSS
PFM
SS
EN
VIN
LX
VIN
LOUT
VOUT
COUT
APW8713A
Ordering and Marking Information
APW8713A
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
QB: TQFN4x4-23
Operating Ambient Temperature Range
I : -40 to 85 °C
Handling Code
TR : Tape & Reel
Lead Free Code
L : Lead Free Device G : Halogen and Lead Free Device
APW8713A QB : APW8713A
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
POK 1
EN 2
PFM 3
AGND 4
FB 5
TON 6
VIN
17 LX
16 LX
15 PGND
LX
14 PGND
13 PGND
12 PGND
TQFN 4x4 -23 (TOP VIEW)
= Exposed and Thermal Pad
Copyright © ANPEC Electronics Corp.
Rev. A.1 - Oct., 2013
2
www.anpec.com.tw
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