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Número de pieza | A7407 | |
Descripción | 0.7A STEP-DOWN CONVERTER | |
Fabricantes | AiT Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de A7407 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
No Preview Available ! AiT Semiconductor Inc.
www.ait-ic.com
A7407
DC-DC CONVERTER/ BUCK (STEP-DOWN)
42V INPUT STANDOFF VOLTAGE, 0.7A STEP-DOWN CONVERTER
DESCRIPTION
FEATURES
The A7407 is a wide input range, high-efficiency, and
high frequency DC-to-DC step-down switching
regulator, capable of delivering up to 0.7A of output
current. With a fixed switching frequency of 660KHz,
this current mode PWM controlled converter allows
the use of small external components, such as
ceramic input and output caps, as well as small
inductors. A7407 also employs a proprietary control
scheme that switches the device into a power save
mode during light load, thereby extending the range
of high efficiency operation. An OVP function protects
the IC itself and its downstream system against input
voltage surges. With this OVP function, the IC can
stand off input voltage as high as 42V, making it an
ideal solution for industrial applications such as smart
meters as well as automotive applications.
In automotive systems, power comes from the
battery, with its voltage typically between 9V and 24V.
Including cold crank and double battery jump-starts,
the minimum input voltage may be as low as 4V and
the maximum up to 36V, with even higher transient
voltages. With these high input voltages, linear
regulators cannot be used for high supply currents
without overheating the regulator. Instead, high
efficiency switching regulators such as A7407 must
be used to minimize thermal dissipation.
Wide Input Operating Range from 4V to 38V
Standoff Input Voltage: 42V
High Efficiency at 12V In 5V Out: Up to 92%:
High Efficiency PFM mode at light load
Capable of Delivering 0.7A
No External Compensation Needed
Current Mode control
Logic Control Shutdown
Thermal shutdown and UVLO
Available in SOT-26 Package
APPLICATION
Smart Meters
Industrial Applications
Automotive Applications
TYPICAL APPLICATION
The A7407 is available in SOT-26 package.
ORDERING INFORMATION
Package Type
Part Number
SOT-26
A7407E6R
E6
A7407E6VR
Note
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
REV1.0
- MAY 2013 RELEASED -
-1-
1 page AiT Semiconductor Inc.
www.ait-ic.com
A7407
DC-DC CONVERTER/ BUCK (STEP-DOWN)
42V INPUT STANDOFF VOLTAGE, 0.7A STEP-DOWN CONVERTER
7. Frequency vs. Temperature
8. Start-up Waveform with EN
VIN=12V,VOUT=5V,IOUT=0A
9. Start-up Waveform with EN=VIN
VIN=12V,VOUT=5V,IOUT=0A
10. Shutdown Waveform with EN
VIN=30V,VOUT=5V,IOUT=0.5A
11. Switching Waveform
VIN=12V,VOUT=5V,IOUT=0.1A
12. Switching Waveform
VIN=12V,VOUT=5V,IOUT=0.3A
REV1.0
- MAY 2013 RELEASED -
-5-
5 Page AiT Semiconductor Inc.
www.ait-ic.com
A7407
DC-DC CONVERTER/ BUCK (STEP-DOWN)
42V INPUT STANDOFF VOLTAGE, 0.7A STEP-DOWN CONVERTER
IMPORTANT NOTICE
AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to
discontinue any integrated circuit product or service without notice, and advises its customers to obtain the
latest version of relevant information to verify, before placing orders, that the information being relied on is
current.
AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to
be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT
products in such applications is understood to be fully at the risk of the customer. As used herein may involve
potential risks of death, personal injury, or servere property, or environmental damage. In order to minimize
risks associated with the customer's applications, the customer should provide adequate design and
operating safeguards.
AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT
warrants the performance of its products of the specifications applicable at the time of sale.
REV1.0
- MAY 2013 RELEASED -
- 11 -
11 Page |
Páginas | Total 11 Páginas | |
PDF Descargar | [ Datasheet A7407.PDF ] |
Número de pieza | Descripción | Fabricantes |
A7407 | 0.7A STEP-DOWN CONVERTER | AiT Semiconductor |
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