Schematic for AP64501SP-13-3.3V-3.3A-Out: Buck Converter Sublayout...

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recommend a replacement for IC1.

imaginationtoform

@copilot recommend a replacement for IC1.

11mo

copilot

The current IC1, the AP6502SP-13, is obsolete. To find a suitable replacement, we need to match its specifications closely. The AP6502SP-13 is a buck converter. Here are some considerations for selecting a replacement:

Key Specifications to Match:

Input Voltage Range: Typically around the voltage required by your application.
Output Current: Should support at least $3.3$ A (if you want to match or exceed the original rating).
Pin Compatibility: If possible, choose a part with a similar pinout to simplify the transition.
Switching Frequency: Similar or adjustable to the original.

Potential Replacement:

A good alternative might be the MP4433 from Monolithic Power Systems. It has the following features:

Wide $4.5$V to $36$V operating input range.
Up to $3$A output.
Compatible with the SOT23-8 or other similar packages.
Adjustable switching frequency for flexibility.

Action Points:

Verify the new IC meets your application needs for input voltage & current.
Modify the PCB layout if necessary to accommodate a new footprint.

Feel free to check availability through distributors like Digi-Key, Mouser, or LCSC to ensure they have stock. Let me know if there's anything specific you need or want to analyze further!

11mo

please explain what IC1 does.

imaginationtoform

@copilot please explain what IC1 does.

11mo

copilot

The AP6502SP-13, which you have labeled as IC1 in your project, is a synchronous buck converter. This type of converter is used to step down (reduce) voltage from a higher level to a lower level with high efficiency. Specifically, the AP6502SP-13 is capable of delivering output currents up to 3A. It integrates both high-side and low-side MOSFETs which contribute to its efficiency and compactness, making it suitable for applications where space and efficiency are critical.

Here's a brief rundown of the main pins and their functions in this IC that contribute to its operation:

BST (Pin 1): Bootstrap pin. This is used to provide a floating supply voltage for the high-side gate driver.
IN (Pin 2): Input pin for the IC where the supply voltage is applied. It accepts input voltages typically much higher than the output voltage of the converter.
SW (Pin 3): Switch node. This pin is connected to one end of the inductor. It switches between the input voltage and ground, controlled by the internal MOSFETs to regulate the output voltage.
GND (Pin 4): Ground. This is the common reference point for the IC and the rest of the circuit.
FB (Pin 5): Feedback pin. This pin is used to sense the output voltage for regulation. It is often connected to a voltage divider directly from the output.
COMP (Pin 6): Compensation pin. This pin is used to stabilize the control loop of the converter. It is often connected to an external RC network.
EN (Pin 7): Enable pin. This pin is used to turn the converter on or off.
SS (Pin 8): Soft-start control pin. This pin is used to control the startup ramp rate of the output voltage, reducing inrush current.
EP (Pin 9): Exposed pad. It is used primarily for thermal dissipation and is usually connected to the ground plane of the PCB.

Together, these pins allow the AP6502SP-13 to efficiently regulate output voltage in buck converter applications. Let me know if you have further questions or need more details on this component!

11mo

Capacitance

1.2n F

Resistance

15k Ω

Inductance

3.3u H

Capacitance

100n F

Resistance

12k Ω

Resistance

10 Ω

Resistance

47k Ω

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 17

Des	Net	Des	Net
IC1:1364369f	None	IC1:EP	GND
IC1:1364369f	None	IC1:EP	GND
IC1:1364369f	None	IC1:EP	GND
IC1:1364369f	None	IC1:EP	GND
IC1:1364369f	None	Trace 2e18	GND
IC1:1364369f	None	Trace 2e18	GND
IC1:1364369f	None	Trace 2e18	GND
IC1:1364369f	None	Trace 807e	GND
IC1:1364369f	None	Trace 807e	GND
IC1:1364369f	None	Trace 807e	GND
IC1:1364369f	None	Trace 807e	GND
IC1:1364369f	None	Trace 2775	GND
IC1:1364369f	None	Trace 2775	GND
IC1:1364369f	None	Trace 8544	GND
IC1:1364369f	None	Trace 8544	GND
IC1:1364369f	None	Trace 8544	GND
IC1:1364369f	None	Trace 8544	GND

Invalid Layer

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Component Overrides • 41

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	L＊＊	Override rule for L＊＊

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Ground
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jharwinbarrozo
20.5M
Net Portal
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jharwinbarrozo
43.0M
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jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

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AP64501SP-13-3.3V-3.3A-Out

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