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| 型号： | ADP3050-EVAL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADP3050 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输入电压： | 3.6 ~ 30 V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP3050 |
| 相关产品： | ADP3050ARZ-3.3-RL7TR-ND - IC REG BUCK 3.3V 1A 8SOIC ADP3050ARZ-3.3-RLTR-ND - IC REG BUCK 3.3V 1A 8SOIC ADP3050ARZ-3.3-ND - IC REG BUCK 3.3V 1A 8SOIC ADP3050ARZ-R7DKR-ND - IC REG BUCK ADJ 1A 8SOIC ADP3050ARZ-R7CT-ND - IC REG BUCK ADJ 1A 8SOIC ADP3050ARZ-R7TR-ND - IC REG BUCK ADJ 1A 8SOIC ADP3050ARZ-5-ND - IC REG BUCK 5V 1A 8SOIC ADP3050ARZ-RLTR-ND - IC REG BUCK ADJ 1A 8SOIC ADP3050ARZ-5-REEL7TR-ND - IC REG BUCK 5V 1A 8SOIC ADP3050ARZ-5-REELTR-ND - IC REG BUCK 5V 1A 8SOIC 更多... |
200 kHz, 1 A High Voltage
Step-Down Switching Regulator
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Wide input voltage range: 3.6 V to 30 V
Adjustable and fixed (3.3 V, 5 V) output options
BIAS
3
IN
8
Integrated 1 A power switch
Uses small surface-mount components
Cycle-by-cycle current limiting
SD
GND
6
7
2.50V
REGULATOR
CURRENT SENSE
AMPLIFIER
Peak input voltage (100 ms): 60 V
Configurable as a buck, buck-boost, and SEPIC
regulator
Available in 8-lead SOIC package
Supported by ADIsimPower ? design tool
FREQUENCY
AND CURRENT LIMIT
FOLDBACK
200kHz
+
CURRENT
LIMIT
APPLICATIONS
FB
4
OSCILLATOR
2
BOOST
Industrial power systems
CMP
PC peripheral power systems
S
Q
DRIVER
Preregulator for linear regulators
R
1
SWITCH
Distributed power systems
Automotive systems
1.2V
gm
ADP3050
Battery chargers
5
COMP
Figure 1.
GENERAL DESCRIPTION
The ADP3050 is a current mode monolithic buck (step down)
PWM switching regulator that contains a high current 1 A power
switch and all control, logic, and protection functions. It uses a
unique compensation scheme allowing the use of any type of
output capacitor (tantalum, ceramic, electrolytic, OS-CON).
Unlike some buck regulators, the design is not restricted to using
a specific type of output capacitor or ESR value.
A special boosted drive stage is used to saturate the NPN power
switch, providing a system efficiency higher than conventional
bipolar buck switchers. Further efficiency improvements are
obtained by using the low voltage regulated output to provide
the internal operating current of the device. A high switching
frequency allows the use of small external surface-mount compo-
nents. A wide variety of standard off-the-shelf devices can be
used, providing a great deal of design flexibility. A complete
regulator design requires only a few external components.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
The ADP3050 includes a shutdown input that places the device
in a low power mode, reducing the total supply current to under
20 μA. Internal protection features include thermal shutdown
circuitry and a cycle-by-cycle current limit for the power switch
to provide complete device protection under fault conditions.
The ADP3050 provides excellent line and load regulation,
maintaining typically less than ±3% output voltage accuracy
over temperature and under all input voltage and output
current conditions.
The ADP3050 is specified over the industrial temperature range
of ?40°C to +85°C and is available in a thermally enhanced 8-lead
(not Pb-free only) SOIC package and a standard 8-lead (Pb-free
only) RoHS-compliant SOIC package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2008–2012 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP3050-EVALZ | 制造商:AD 制造商全称:Analog Devices 功能描述:200 kHz, 1 A High Voltage Step-Down Switching Regulator |
| ADP3051 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 mA PWM Step-Down DC-DC with Synchronous Rectifier |
| ADP3051ARMZ-REEL | 制造商:Analog Devices 功能描述:CONV DC-DC SGL-OUT STEP DOWN 8MSOP - Tape and Reel |
| ADP3051ARMZ-REEL7 | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 2.7V to 5.5V 8-Pin MSOP T/R 制造商:Analog Devices 功能描述:SWITCH REG SYNC BUCK 500MA 8MSOP |
| ADP3088 | 制造商:AD 制造商全称:Analog Devices 功能描述:1 MHz, 750 mA Buck Regulator |
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