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参数资料
| 型号： | APW7093QAI-TR |
| 厂商： | Anpec Electronics Corporation |
| 英文描述： | 3A, 1MHz, Step Down DC/DC Regulator |
| 中文描述： | 第3A，1MHz的，下步直流/直流稳压器 |
| 文件页数： | 1/20页 |
| 文件大小： | 728K |
| 代理商： | APW7093QAI-TR |
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Jun., 2005
APW 7093
www.anpec.com.tw
1
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.
3A, 1MHz, Step Down DC/DC Regulator
·
Source/Sink 3A
·
Up to 1MHz Switches Frequency
·
Up to 94% Efficiency
·
Internal PMOS/NMOS Switches
- 70m
/
40m
On-Resistance at V
IN
= 4.5V
- 90m
/60m
On-Resistance at V
IN
= 3V
·
±1% Output Accuracy
·
1.1V to V
IN
Adjustable Output Voltage
·
3V to +5.5V Input
Voltage Range
·
<1
μ
A Shutdown Supply Current
·
Programmable Constant-Off-Time Operation
·
Thermal Shutdown
·
Adjustable Soft-Start Inrush Current Limiting
·
Output Short-Circuit Protection
·
Lead Free Available (RoHS Compliant)
Features
Applications
·
Motherboard
·
Graphics Cards
·
Cable or DSL Modems, Set Top Boxes
·
DSP Supplies
·
Memory Supplies
·
5V Input DC-DC Regulators
·
Distributed Power Supplies
General Description
The APW7093 is a reversible energy flow, constant-
off-time, pulse-width modulated (PWM), step-down
DC-DC converter. It is ideal for use in notebook and
sub-notebook computers that require 1.1V to 5V
active termination power supplies. This device features
an internal PMOS power switch and internal
synchronous rectifier for high efficiency and reduced
component count. The internal 90m
PMOS power
switch and 60m
NMOS synchronous-rectifier switch
easily deliver continuous load currents up to 3A. The
APW7093 accurately tracks an external reference
voltage, produces an adjustable output from 1.1V to
VIN, and achieves efficiencies as high as 94%.
The APW7093 uses a unique current-mode,
constant-off-time, PWM control scheme that allows
the output to source or sink current. This feature
allows energy to return to the input power supply that
otherwise would be wasted. The programmable
constant-off-time architecture sets switching frequencies
up to 1MHz, allowing the user to optimize performance
trade-offs between efficiency, output switching noise,
component size, and cost. The APW7093 features an
adjustable soft-start to limit surge currents during
startup, a 100% duty-cycle mode for low-dropout
operation, and a low-power shutdown mode that disables
the power switches and reduces supply current below
1μA. The APW7093 is available in a 32-pin QFN with
an exposed backside pad or a 16-pin SSOP.
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| APW7093QAI-TRL | 3A, 1MHz, Step Down DC/DC Regulator |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| APW7093QAI-TRL | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:3A, 1MHz, Step Down DC/DC Regulator |
| APW7093QAI-TU | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:3A, 1MHz, Step Down DC/DC Regulator |
| APW7093QAI-TUL | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:3A, 1MHz, Step Down DC/DC Regulator |
| APW7095 | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:6-Channel DC/DC Converter Control IC |
| APW7095_08 | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:6-Channel DC/DC Converter Control IC |
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