PAM2423AECADJR

PAM2423AECADJR Datasheet

PAM2421/ PAM2422/ PAM2423

Part	Datasheet
PAM2423AECADJR	PAM2423AECADJR (pdf)

Related Parts	Information
PAM2422AECADJR	PAM2422AECADJR
PAM2421AECADJR	PAM2421AECADJR

PDF Datasheet Preview
A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 3A, 4.5A, 5.5A PWM STEP-UP DC-DC CONVERTER The PAM242x devices are high-performance, fixed frequency, current-mode PWM step-up DC/DC converters that incorporate internal power MOSFETs. The PAM242x includes an integrated power MOSFET that supports peak currents of up to 3A/4.5A/5.5A. The PAM242x utilizes simple external loop compensation allowing optimization between component size, cost and AC performance across a wide range of applications. Additional functions include an externally programmable soft-start function for easy inrush current control, internal over-voltage protection OVP , cycle-by-cycle current limit protection, under voltage lock-out and thermal shutdown. The PAM242x is available in the small SOP-8 EP package. Pin Assignments • Greater than 90% Efficiency • Adjustable Output Voltage Up to 24V • Internal 24V Power MOSFET • Peak Current 3A,4.5A,5.5A • 520kHz Frequency • Built-in Over-Voltage Protection OVP • Open Protection • Programmable Soft-Start Function • Thermal Shutdowns • Under-Voltage-Lockout • Over-Current Protection • SOP-8 EP Package • TFT LCD Monitors • Battery-Powered Equipment • Set-Top Boxes • DSL and Cable Modems and Routers Typical Applications Circuit PAM2421/PAM2422/PAM2423 1 of 10 November 2012 Diodes Incorporated A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 Pin Descriptions Pin Number 1 2 3 4 5 6 SOP-8 EP Pin Name PGND IN EN COMP AGND SW Exposed PAD Function Power Ground Supply Input Enable Control. Connect to a logic high level to enable the IC. Connect to a logic low level to disable the IC. When unused, connect EN pin to IN do not leave pin floating . Error Amplifier Compensation Node Analog Ground Feedback Input.Connect this pin a resistor divider from the output to set the output voltage. FB is regulated to 1.262V. Soft Start Control Input. Connect a capacitor from this pin to Ground to set soft-start timing duration. SS is discharged to ground in shutdown. SS may be left unconnected if soft start is not desired. Switch Output. Connect this pin to the inductor and the schottky diode. To minimize EMI, minimize the PCB trace path between this pin and the input bypass capacitor. Connected to Ground Functional Block Diagram PAM2421/PAM2422/PAM2423 2 of 10 November 2012 Diodes Incorporated A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 Absolute Maximum Ratings = +25°C, unless otherwise specified. These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground. Parameter Rating Unit SW to Ground to +28 Ordering Information A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 Part Number PAM2421AECADJR PAM2422AECADJR PAM2423AECADJR Marking Information Peak Current 3A 4.5A 5.5A Package Type SOP-8 EP SOP-8 EP SOP-8 EP Standard Package 2500 Units/Tape & Reel 2500 Units/Tape & Reel 2500 Units/Tape & Reel PAM2421/PAM2422/PAM2423 8 of 10 November 2012 Diodes Incorporated Package Outline Dimensions cont. All dimensions in mm. SOP-8 EP A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 PAM2421/PAM2422/PAM2423 9 of 10 November 2012 Diodes Incorporated A Product Line of Diodes Incorporated PAM2421/ PAM2422/ PAM2423 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. 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: are intended to implant into the body, or 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 2012, Diodes Incorporated PAM2421/PAM2422/PAM2423 10 of 10 November 2012 Diodes Incorporated

PDF Datasheet Preview

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423
3A, 4.5A, 5.5A PWM STEP-UP DC-DC CONVERTER

The PAM242x devices are high-performance, fixed frequency, current-mode PWM step-up DC/DC converters that incorporate internal power MOSFETs. The PAM242x includes an integrated power MOSFET that supports peak currents of up to 3A/4.5A/5.5A.

The PAM242x utilizes simple external loop compensation allowing optimization between component size, cost and AC performance across a wide range of applications. Additional functions include an externally programmable soft-start function for easy inrush current control, internal over-voltage protection OVP , cycle-by-cycle current limit protection, under voltage lock-out and thermal shutdown.

The PAM242x is available in the small SOP-8 EP package.

Pin Assignments
• Greater than 90% Efficiency
• Adjustable Output Voltage Up to 24V
• Internal 24V Power MOSFET
• Peak Current 3A,4.5A,5.5A
• 520kHz Frequency
• Built-in Over-Voltage Protection OVP
• Open Protection
• Programmable Soft-Start Function
• Thermal Shutdowns
• Under-Voltage-Lockout
• Over-Current Protection
• SOP-8 EP Package
• TFT LCD Monitors
• Battery-Powered Equipment
• Set-Top Boxes
• DSL and Cable Modems and Routers

Typical Applications Circuit

PAM2421/PAM2422/PAM2423
1 of 10

November 2012

Diodes Incorporated

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423

Pin Descriptions

Pin Number
1 2 3 4 5 6

SOP-8 EP Pin Name

PGND IN EN

COMP AGND

SW Exposed PAD

Function

Power Ground

Supply Input Enable Control. Connect to a logic high level to enable the IC. Connect to a logic low level to disable the IC. When unused, connect EN pin to IN do not leave pin floating . Error Amplifier Compensation Node

Analog Ground Feedback Input.Connect this pin a resistor divider from the output to set the output voltage. FB is regulated to 1.262V. Soft Start Control Input. Connect a capacitor from this pin to Ground to set soft-start timing duration. SS is discharged to ground in shutdown. SS may be left unconnected if soft start is not desired. Switch Output. Connect this pin to the inductor and the schottky diode. To minimize EMI, minimize the PCB trace path between this pin and the input bypass capacitor. Connected to Ground

Functional Block Diagram

PAM2421/PAM2422/PAM2423
2 of 10

November 2012

Diodes Incorporated

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423

Absolute Maximum Ratings = +25°C, unless otherwise specified.

These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground.

Parameter

Rating

Unit

SW to Ground
to +28
Ordering Information

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423

Part Number PAM2421AECADJR PAM2422AECADJR PAM2423AECADJR

Marking Information

Peak Current 3A 4.5A 5.5A

Package Type SOP-8 EP SOP-8 EP SOP-8 EP

Standard Package 2500 Units/Tape & Reel 2500 Units/Tape & Reel 2500 Units/Tape & Reel

PAM2421/PAM2422/PAM2423
8 of 10

November 2012

Diodes Incorporated

Package Outline Dimensions cont. All dimensions in mm.

SOP-8 EP

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423

PAM2421/PAM2422/PAM2423
9 of 10

November 2012

Diodes Incorporated

A Product Line of Diodes Incorporated

PAM2421/ PAM2422/ PAM2423

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.

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:
are intended to implant into the body, or
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 2012, Diodes Incorporated

PAM2421/PAM2422/PAM2423
10 of 10

November 2012

Diodes Incorporated

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived PAM2423AECADJR Datasheet file may be downloaded here without warranties.

Datasheet ID: PAM2423AECADJR 510026