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PDF A7142 Data sheet ( Hoja de datos )
| Número de pieza | A7142 | |
| Descripción | WIDE INPUT RANGE STEP-DOWN DC-DC CONVERTER | |
| Fabricantes | AiT Semiconductor | |
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AiT Semiconductor Inc.
www.ait-ic.com
A7142
DC-DC CONVERTER/ BUCK (STEP-DOWN)
150KHz, 2A PWM BUCK DC-DC CONVERTER
DESCRIPTION
FEATURES
The A7142 series of regulators are monolithic 5V and adjustable output versions
integrated circuits that provide all the active functions Adjustable version output voltage range 1.23V
for a step-down (buck) switching regulator, capable of
to 37V
driving a 2A load with excellent line and load Input voltage range up to 40V
regulation. These devices are available in fixed output Guaranteed 2A output current
voltage of 5V and adjustable output version.
150KHz fixed frequency internal oscillator
Built-in thermal shutdown and current limit
The A7142 operates at a switching frequency of
protection
150KHz thus allowing smaller sized filter components Available in SOP8 and PSOP8 Packages
than what would be needed with lower frequency
switching regulators.
APPLICATION
Other features include a guaranteed ±3% tolerance
on output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator
frequency. External shutdown is included, featuring
typically 100μA standby current.
Fixed voltage power supply for LCD monitor
and LCD TV
On-Card switching regulation
Simple high efficiency Step-down regulator
The A7142 is available in SOP8 and PSOP8
packages.
TYPICAL APPLICATION
ORDERING INFORMATION
Package Type
Part Number
SOP8
A7142M8R-XX
M8
A7142M8VR-XX
PSOP8
MP8
A7142MP8R-XX
A7142MP8VR-XX
XX: 50=5.0V, ADJ=Adjustable
Note
R: Tape & Reel
V: Halogen free Package
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
A7142-50 (Fixed Output)
REV1.1
- MAY 2009 RELEASED, JUL 2012 UPDATED -
-1-
1 page  
AiT Semiconductor Inc.
www.ait-ic.com
A7142
DC-DC CONVERTER/ BUCK (STEP-DOWN)
150KHz, 2A PWM BUCK DC-DC CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
25℃ Unless Note
1. Switch Saturation Voltage
2. Switch Current Limit
3. Dropout Voltage
4. Operating Quiescent Current
5. Shutdown Quiescent Current
6. Minimum Operating Supply Voltage
REV1.1
- MAY 2009 RELEASED, JUL 2012 UPDATED -
-5-
5 Page 
AiT Semiconductor Inc.
www.ait-ic.com
IMPORTANT NOTICE
A7142
DC-DC CONVERTER/ BUCK (STEP-DOWN)
150KHz, 2A PWM BUCK DC-DC CONVERTER
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.
REV1.1
- MAY 2009 RELEASED, JUL 2012 UPDATED -
- 11 -
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet A7142.PDF ] | |
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