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PDF APE1723-HF-3 Data sheet ( Hoja de datos )
| Número de pieza | APE1723-HF-3 | |
| Descripción | 1A PWM Buck DC/DC Converter | |
| Fabricantes | Advanced Power Electronics | |
| Logotipo |  |
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Advanced Power
Electronics Corp.
APE1723-HF-3
200kHz, 1A PWM Buck DC/DC Converter
Features
Description
Adjustable Output Voltage:
From 0.745V to 24V
Fixed switching frequency of 200kHz
Thermal-shutdown and current-limit protection.
ON/OFF shutdown control input.
Short Circuit Protection (SCP).
Operating voltage up to 26V.
Output load current up to 1A.
Low-power standby mode.
Built-in switching transistor on chip.
SO-8 or 5-Lead SOT-23 packages
The APE1723 series are monolithic ICs designed as a
step-down DC/DC converter, and have the ability to drive a
1A load without an external transistor, saving board space.
The external shutdown function can be controlled with logic
level signals to put the device into standby mode. The internal
compensation provides feedback control for good line and
load regulation without external components.
Thermal shutdown is provided to prevent damage from
over-temperature operation, and current limiting is available
to protect the output switch. If the APE1723’s VFB is taken
below 0.5V, the switching frequency will be reduced.
The APE1723 operates at a fixed switching frequency of
200kHz allowing smaller sized filter components. Other features
include a guaranteed ±3% tolerance on output voltage under
specified input voltage and output load conditions.
The APE1723 is available in a SOT-23-5 or SO-8 package.
RoHS-compliant, halogen-free.
Typical Application
VIN=12V
C1
100uF
R3
C2 100k
0.1uF
C4
0.1uF
U1
5
APE1723
VIN SW
1
4 EN FB 3
ON/OFF 2 Vss
L1 Vout=5V/1A
(Refer to table 1)
R1
6.8k
D1
B140A
C3 C6
220uF 0.1uF
R2
1.2k
VOUT = VFB x (1+R1/R2) , VFB= 0.745V, R2 = 0.75kΩ ~4kΩ
Ordering information
APE1723XX-HF-3TR
Package Type:
M: SO-8
Y5 : SOT-23-5
Packing Type:
TR: Tape and reel
Examples:
APE1723M-HF-3TR in RoHS-compliant, halogen-free SO-8, shipped on tape and reel (3000 pcs/reel).
APE1723Y5-HF-3TR in RoHS-compliant, halogen-free SOT23-5, shipped on tape and reel (3000 pcs/reel).
©2010 Advanced Power Electronics Corp. USA
www.a-powerusa.com
200812231-3 1/11
1 page  
Advanced Power
Electronics Corp.
Typical Application
APE1723-HF-3
VIN=12V
C1
100uF
R3
C2 100k
0.1uF
C4
0.1uF
U1
5
APE1723
VIN SW
1
4 EN FB 3
ON/OFF 2 Vss
L1 Vout=5V/1A
(Refer to table 1)
R1
6.8k
D1
B140A
C3 C6
220uF 0.1uF
R2
1.2k
VOUT = VFB x (1+R1/R2) , VFB= 0.745V, R2 = 0.75kΩ ~4kΩ
Table 1: Resistor selection for setting the output voltage
VOUT
5V
3.3V
2.5V
1.8V
1.5V
1.3V
1.2V
R2
1.2kΩ
2.4kΩ
2kΩ
3.3kΩ
2kΩ
2kΩ
2kΩ
R1
6.8kΩ
8.2kΩ
4.7kΩ
4.7kΩ
2kΩ
1.5kΩ
1.2kΩ
VOUT
L1 Value
L1 recommended value (VIN=12V, IOUT=1A)
1.8V
2.5V
3.3V
33uH
33uH
47uH
5V
47uH
©2010 Advanced Power Electronics Corp. USA
www.a-powerusa.com
5/11
5 Page 
Advanced Power
Electronics Corp.
Package Dimensions: SOT-23-5L
APE1723-HF-3
SYMBOLS
A
A1
A2
b
C
D
E
e
H
L
θ1
e2
Millimeters
MIN NOM MAX
1.00 1.10 1.30
0.00 --- 0.10
0.70 0.80 0.90
0.35 0.40 0.50
0.10 0.15 0.25
2.70 2.90 3.10
1.50 1.60 1.80
--- 1.90(TYP) ---
2.60 2.80 3.00
0.37 ---
---
1° 5° 9°
--- 0.95(TYP) ---
Note 1: Package body sizes exclude mold flash protrusions or gate burrs.
Note 2: Tolerance ± 0.1000 mm (4mil) unless otherwise specified.
Note 3: Coplanarity:0.1000 mm
Note 4: Dimension L is measured in gage plane.
Marking Information
N1YWS
Product: N1Y = APE1723
Date/lot code
For details of how to convert this
to standard YYWW date code format,
please contact us directly.
©2010 Advanced Power Electronics Corp. USA
www.a-powerusa.com
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet APE1723-HF-3.PDF ] | |
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