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APW7533 Datasheet Preview

APW7533 Datasheet

HV Asynchronous Step-Down Converter

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APW7533
HV Asynchronous Step-Down Converter with Bypass
Features
General Description
Wide Input Voltage from 4.5V to 26V
Output Current up to 3A
Adjustable Output Voltage from 0.8V to 100% V
IN
- 0.8V Reference Voltage
- ±2.5% System Accuracy
22mIntegrated P-Channel Power MOSFET
High Efficiency up to 91%
- Pulse-Skipping Mode (PSM) / PWM Mode Op-
eration
Current-Mode Operation
- Stable with Ceramic Output Capacitors
- Fast Transient Response
Power-On-Reset Monitoring
Fixed 380kHz Switching Frequency in PWM Mode
Built-in Digital Soft-Start
Output Current-Limit Protection with Frequency
Foldback
70% Under-Voltage Protection
Over-Temperature Protection
<5µA Quiescent Current During Shutdown
Thermal-Enhanced TDFN-5x5-16 Package
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
LCD Monitor / TV
Set-Top Box
Portable DVD
Wireless LAN
ADSL, Switch HUB
Notebook Computer
Step-Down Converters Requiring High Efficiency
and 3A Output Current
The APW7533 is a 3A, asynchronous, step-down con-
verter with integrated 22mP-channel MOSFET. The
device, with current-mode control scheme, can convert
4.5~26V input voltage to the output voltage adjustable
from 0.8 to 100% VIN to provide excellent output voltage
regulation.
The APW7533 regulates the output voltage in automatic
PSM/PWM mode operation, depending on the output
current, for high efficiency operation over light to full load
current. The APW7533 is also equipped with power-on-
reset, soft-start, and whole protections (under-voltage,
over-temperature, and current-limit) into a single package.
In shutdown mode, the supply current drops below 5µA.
This device, available in a TDFN-5x5-16 package, pro-
vides a very compact system solution with minimal exter-
nal components and good thermal conductance.
100
90
80
VOUT =5V
70
VOUT =3.3V
60
50
40
30
20
10
0.001 0.01
0.1
1
10
Output Current, IOUT (A)
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.4 - Jun., 2017
www.anpec.com.tw




ANPEC

APW7533 Datasheet Preview

APW7533 Datasheet

HV Asynchronous Step-Down Converter

No Preview Available !

APW7533
Ordering and Marking Information
APW7533
APW7533 QB :
Assembly Material
Handling Code
Temperature Range
Package Code
APW7533
XXXXX
Package Code
QB : TDFN-5x5-16
Operating Ambient Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
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 Greento 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
NC 1
VIN 2
VIN 3
VIN 4
VIN 5
EN 6
UGNG 7
VCC 8
16 NC
15 LX
14 LX
17
13 LX
LX
12 GND
11 FB
10 COMP
9 LX
TDFN 5x5 - 16
Top View
Simplified Application Circuit
VIN
4.7µH
VIN
LX
LX
22µF 22µF
LX
100k
GND
EN
FB
Option
1µF
UGNG COMP
VCC
10k
1µF
APW7533
22pF
1.5nF
VOUT
63k
220µF 220µF
12k
Copyright © ANPEC Electronics Corp.
2
Rev. A.4 - Jun., 2017
www.anpec.com.tw



Part Number APW7533
Description HV Asynchronous Step-Down Converter
Maker ANPEC
Total Page 3 Pages
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