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PDF PAM2321 Data sheet ( Hoja de datos )

Número de pieza PAM2321
Descripción FAST TRANSIENT 2A STEP-DOWN CONVERTER
Fabricantes Diodes 
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No Preview Available ! PAM2321 Hoja de datos, Descripción, Manual

A Product Line of
Diodes Incorporated
PAM2321
3MHz, FAST TRANSIENT 2A STEP-DOWN CONVERTER
Description
The PAM2321 is a 2A step-down converter with a typical input
voltage of 3.3V and a fixed output voltage of 1.2V or an adjustable
output. The 3MHz switching frequency enables the use of small
external components. The ultra-small 3mmx3mm footprint and high
efficiency make the PAM2321 an ideal choice for portable
applications.
The PAM2321 delivers 2A maximum output current while consuming
only 55µA no-load quiescent current. Low RDS(ON) integrated
MOSFETs and 100% duty cycle operation make the PAM2321 the
ideal choice for high output voltage, high current applications which
require a low dropout threshold.
The PAM2321 provides excellent transient response and output
accuracy across the operating range.
The PAM2321 maintains high efficiency throughout the load range.
The PAM2321 automatically optimizes efficiency during light load
mode (PSM) and maintains constant frequency and low output ripple
during PWM mode.
Over-temperature and short circuit protection safeguard the PAM2321
and system components from damage.
The PAM2321 are available in Pb-free, ultrasmall, low profile,
TDFN3X3-10 package. The product is rated over a temperature range
of -40°C to +85°C.
Features
2A Maximum Output Current
Tiny 0.47µH Chip Inductor
Excellent Transient Response
Input Voltage: 2.7V to 5.5V
Fixed or Adjustable Output Voltage Options:
ƒ Fixed Output Voltage: 1.2V
ƒ Adjustable Output Voltage: 1.0V to VIN
High Efficiency with 3MHz Switching Frequency
55µA No Load Quiescent Current
100% Duty Cycle Low-Dropout Operation
Internal Soft-Start
Over-Temperature and Current Limit Protection
<1µA Shutdown Current
-40°C to +85°C Temperature Range
Pb-Free/Halogen Free Package
RoHS/REACH Compliant
Pin Assignments
Applications
Cellular Phone
Digital Cameras
Hard Disk Drives
MP3 Players
PDAs and Handheld Computers
Portable Media Players
USB Devices
Wireless Network Cards
PAM2321
Document number: DSxxxxx Rev. 2 - 1
1 of 11
www.diodes.com
January 2013
© Diodes Incorporated

1 page




PAM2321 pdf
A Product Line of
Diodes Incorporated
PAM2321
Typical Performance Characteristics (@TA = +25°C, CIN = 10µF, CO = 10µF, L = 0.47µH unless otherwise specified.)
PAM2321
Document number: DSxxxxx Rev. 2 - 1
5 of 11
www.diodes.com
January 2013
© Diodes Incorporated

5 Page





PAM2321 arduino
A Product Line of
Diodes Incorporated
PAM2321
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2013, Diodes Incorporated
www.diodes.com
PAM2321
Document number: DSxxxxx Rev. 2 - 1
11 of 11
www.diodes.com
January 2013
© Diodes Incorporated

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