APE1707-HF-3 Converter Datasheet

APE1707-HF-3 Datasheet, PDF, Equivalent


Part Number

APE1707-HF-3

Description

2A PWM Buck DC/DC Converter

Manufacture

Advanced Power Electronics

Total Page 10 Pages
Datasheet
Download APE1707-HF-3 Datasheet


APE1707-HF-3
Advanced Power
Electronics Corp.
APE1707-HF-3
150kHz, 2A PWM Buck DC/DC Converter
Features
Description
Output voltage: Fixed 3.3V, 5V, 12V and
adjustable output (1.23V to 38.5V) versions.
The APE1707-HF-3 series consists of step-down DC-DC
converters with the ability to drive a 2A load without an
Fixed switching frequency, 150KHz ±15%.
Voltage mode non-synchronous PWM control.
Thermal-shutdown and current-limit protection.
external switching transistor, saving board space.
The external shutdown function can be controlled by logic level
signals to put the device in standby mode. The internal compensation
allows feedback control for good line and load regulation without
ON/OFF shutdown control input.
Short Circuit Protection (SCP).
Operating voltage up to 40V.
external components. Thermal shutdown protection prevents
damage from excessive operating temperatures and output
current limiting protects the device from damage. Excess current
when VFB is below O.5V results in reduced switching frequency. The
Output load current up to 2A.
Low-power standby mode.
APE1707-HF-3 series operate at a switching frequency of 150kHz,
allowing smaller sized filter components than with lower frequencies.
Built-in switching transistor on chip.
SO-8 package
RoHS-compliant, halogen-free.
The APE1705-HF- 3 series are available with an adjustable output
voltage, or fixed output voltages of 3.3V, 5V or 12V, and are
supplied in an SO-8 package.
Typical Application
VIN=12 V
C1
470 uF
C2
0.1uF
U1
1 Vcc
2 SW
3 FB
4 EN
Vss 8
Vss 7
Vss 6
Vss 5
APE1707
L1
1
2
47uH
D1
B 340A
Vout=5.0 V/2 A
R1
4.7K
C3
470 uF
C6
0.1uF
R2
1.5K
Ordering information
APE1707X-XX-HF-3TR
Packing Type:
TR: Tape and reel
Package Type:
Output Voltage:
Examples:
M: SO-8
33: 3.3V
50: 5.0V
12: 12V
Blank: ADJ
APE1707M-33-HF-3TR 3.3V fixed output in RoHS-compliant, halogen-free SO-8,
shipped on tape and reel (3000 pcs/reel).
APE1707M-HF-3TB adjustable output in RoHS-compliant, halogen-free SO-8,
shipped on tape and reel (3000 pcs/reel).
©2010 Advanced Power Electronics Corp. USA
www.a-powerusa.com
20080514-3
1/10

APE1707-HF-3
Advanced Power
Electronics Corp.
APE1707-HF-3
Absolute Maximum Ratings (at TA = 25°C)
Characteristics
Symbol
Rating
Unit
Maximum Supply Voltage
VCC +45
V
ON/OFF Pin Input Voltage
VEN -0.3 to 40
V
Feedback Pin Voltage
VFB -0.3 to 12
V
Output Voltage to Ground
VOUT 0.8 to 45V
V
Power Dissipation Internally limited
PD ( TJ-TA ) / θJA W
Storage Temperature Range
TST -65 to +150 °C
Operating Junction Temperature Range
TJ -20 to +125 °C
Operating Supply Voltage
VOP +4.5 to +40
V
Thermal Resistance from Junction to case
θJC
20 °C/W
Thermal Resistance from Junction to ambient
θJA
60 °C/W
Note: RthJA is measured with a PCB copper area (must be connected to VSS pins) of approximately 1.5 in2 (multi-layer).
Electrical Characteristics
(Unless otherwise specified, TA=25°C, VCC=12V for 3.3V, 5V, adjustable version and VCC=18V for the
12V version. ILOAD = 0.2A)
Characteristics
Symbol
Conditions
Min Typ Max Units
Quiescent Current
IQ VFB=12V force driver off
4 8 mA
Feedback bias current
IFB
VFB=1.3V
(Adjustable version only)
-10 -50 nA
Shutdown supply Current
ISD
EN pin=5V
VCC=40V
100 200 uA
Oscillator frequency
FOSC
127 150 173 kHz
Oscillator frequency of short
circuit protect
FSCP
(Adjustable) When VFB<0.5V
(Fixed)When < VOUT*40%
50 kHz
50 kHz
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
Current limit
DC VFB=0V force driver on
VFB=12V force driver off
100
0
ICL
Pear current, No outside circuit
V FB=0V force driver on
2.5
%
A
Load Regulation( VOUT/VOUT ) VOUT IOUT = 0.2 to 2A
- 0.6 1.2 %
Saturation voltage
SW pin=0V
SW pin=-0.8V
SW pin
leakage
current
VSA T
IOUT=2A, No outside circuit
VFB=0V force driver on
No outside circuit
ISW L VFB=12V force driver off
VCC=40V force driver off
1.2 1.4 V
-200 uA
-5 mA
EN pin logic input threshold
voltage
EN pin logic input current
EN pin input current
Thermal shutdown Temp
VIL Low (regulator ON)
VIH High (regulator OFF)
IH VEN=2.5V (OFF)
IL VEN=0.5V (ON)
TSD
- 1.3 0.6
2.0 -
-0.1 -10
-0.01 -1
135
V
uA
°C
©2010 Advanced Power Electronics Corp. USA
www.a-powerusa.com
2/10


Features Advanced Power Electronics Corp. APE170 7-HF-3 150kHz, 2A PWM Buck DC/DC Conve rter Features Description Output vol tage: Fixed 3.3V, 5V, 12V and adjustabl e output (1.23V to 38.5V) versions. Th e APE1707-HF-3 series consists of step- down DC-DC converters with the ability to drive a 2A load without an Fixed sw itching frequency, 150KHz ±15%. Voltag e mode non-synchronous PWM control. The rmal-shutdown and current-limit protect ion. external switching transistor, sa ving board space. The external shutdown function can be controlled by logic le vel signals to put the device in standb y mode. The internal compensation allow s feedback control for good line and lo ad regulation without ON/OFF shutdown control input. Short Circuit Protection (SCP). Operating voltage up to 40V. e xternal components. Thermal shutdown pr otection prevents damage from excessive operating temperatures and output curr ent limiting protects the device from d amage. Excess current when VFB is below O.5V results in reduced .
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