AP64501SP

Diodes IncorporatedExtended

-40℃~+85℃ 1 25uA 3.8V~40V 570kHz 5A 800mV~39V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Adjustable soft-start、Cycle-by-cycle current limiting、Hiccup current limiting、External compensation、EMI optimization (spread spectrum) Step-down type Yes SOIC-8-EP DC-DC Converters ROHS

Datasheet JLCPCB LCSC

Part id: diodes/AP64501SP
Category: DC DC Converters
Package: SOIC-8-EP
Pins: 9
In stock: 1 at JLCPCB (C2071517)
Used on: 1 open-source board

Overview

The AP64501SP is a DC DC Converter made by Diodes Incorporated in a SOIC-8-EP package with 9 pins. -40℃~+85℃ 1 25uA 3.8V~40V 570kHz 5A 800mV~39V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Adjustable soft-start、Cycle-by-cycle current limiting、Hiccup current limiting、External compensation、EMI optimization (spread spectrum) Step-down type Yes SOIC-8-EP DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AP64351SP-13, from EasyEDA) and its footprint (EasyEDA_Cloud:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP-1, from EasyEDA), ready for a KiCad board. 1 are in stock at JLCPCB (part C2071517). 1 open-source board in 1 repository on GitHub use it.

Symbol

EasyEDA_Cloud:AP64351SP-13From EasyEDA

Footprint

EasyEDA_Cloud:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP-1From EasyEDA

From the datasheet

Supply, least: 3.8 V · VIN, recommended operating min · p. 5
Supply, most: 40 V · VIN, recommended operating max · p. 5
Supply, absolute maximum: 42 V · VIN, absolute max DC · p. 5
Works from: -40 °C · Operating ambient temperature min · p. 5
Works up to: 85 °C · Operating ambient temperature max · p. 5
Junction, hottest: 160 °C · Junction temperature absolute max · p. 5
Takes working: 25 µA · VIN quiescent current typical, VEN floating, VFB = 1.0V · p. 6
Takes asleep: 1 µA · Shutdown supply current typical, VEN = 0V · p. 6
Gives: 5 A · Continuous output current max · p. 1
Current limit: 8 A · High-side peak current limit typical · p. 6
Feedback reference: 800 mV · Feedback voltage typical, CCM · p. 6
Switches at: 570 kHz · Oscillator frequency typical · p. 6
Junction to air (SO-8EP): 45 K/W · Junction to ambient, four-layer FR-4 PCB, 2oz copper · p. 5
Junction to case (SO-8EP): 5 K/W · Junction to case · p. 5

What it is and has

Converter: 5A synchronous buck, 3.8V to 40V input · p. 11
Package: SO-8EP · p. 1
Reference accuracy: 0.8V ± 1% · p. 1
Soft-start: Programmable · p. 1
EMI reduction: Proprietary gate driver · p. 1
Frequency spread spectrum: Switching frequency jitter ±6% · p. 12
Low-dropout operation: LDO mode · p. 1
Protection: Undervoltage lockout · p. 1
Protection: Output overvoltage protection · p. 1
Protection: Cycle-by-cycle peak current limit · p. 1
Protection: Thermal shutdown · p. 1

Around it

cap 100nF: between BST and SW; Ceramic bootstrap capacitor required for proper operation. · p. 16
cap greater than 10µF: between VIN and GND; Ceramic input capacitor sufficient for most applications; use low ESR. · p. 15
cap 22µF to 68µF: between VOUT and GND; Ceramic output capacitor with low ESR; verify transient and stability requirements. · p. 16
cap at least 10nF: between SS and GND; Soft-start capacitor; minimum soft-start time is 4ms. · p. 14
cap 10pF to 220pF: between VOUT and FB; Optional C4 to improve transient response. · p. 14
ind approximately 1µH to 10µH: between SW and VOUT; DC current rating at least 35% above maximum load current; DC resistance below 10mΩ for highest efficiency. · p. 15
res 115.8 kΩ: between VOUT and FB; R1 for the recommended 5.0V output configuration. · p. 14
res 22.1 kΩ: between FB and GND; R2 for the recommended 5.0V output configuration. · p. 14
ind 3.6 µH: between SW and VOUT; L for the recommended 5.0V output configuration. · p. 14
cap 10 µF: between VIN and GND; C1 for the recommended 5.0V output configuration. · p. 14
cap 3 x 22 µF: between VOUT and GND; C2 for the recommended 5.0V output configuration. · p. 14
res 15.80 kΩ: between COMP and C5; R5 in the series compensation network to GND for the recommended 5.0V output configuration. · p. 14
cap 2.7 nF: between R5 and GND; C5 in the series compensation network for the recommended 5.0V output configuration. · p. 14
cap 33 pF: between COMP and GND; Optional C6 for the recommended 5.0V output configuration. · p. 14

Specifications

Parameter	Conditions	As printed	Page
Supply Pin Voltage VIN	TA = +25°C; DC	min -0.3 · max 42 V	5
Supply Pin Voltage VIN	TA = +25°C; 400ms	min -0.3 · max 45 V	5
Enable/UVLO Pin Voltage VEN	TA = +25°C	min -0.3 · max 42 V	5
Soft-Start Pin Voltage VSS	TA = +25°C	min -0.3 · max 6 V	5
Feedback Pin Voltage VFB	TA = +25°C	min -0.3 · max 6 V	5
Compensation Pin Voltage VCOMP	TA = +25°C	min -0.3 · max 6 V	5
Switch Pin Voltage VSW	TA = +25°C; DC; upper limit VIN + 0.3 V	min -0.3 V	5
Switch Pin Voltage VSW	TA = +25°C; 20ns; upper limit VIN + 2.0 V	min -2.5 V	5
Storage Temperature TST		min -65 · max 150 °C	5
Junction Temperature TJ		max 160 °C	5
Lead Temperature TL		max 260 °C	5
Human Body Model HBM	Note 5	max 2000 V	5
Charged Device Model CDM	Note 5	max 500 V	5
Junction to Ambient θJA	SO-8EP; FR-4 substrate, four-layer PC board, 2oz copper, minimum recommended pad layout	typ 45 °C/W	5
Junction to Case θJC	SO-8EP; FR-4 substrate, four-layer PC board, 2oz copper, minimum recommended pad layout	typ 5 °C/W	5
Supply Voltage VIN	TA = +25°C	min 3.8 · max 40 V	5
Output Voltage VOUT	TA = +25°C	min 0.8 · max 39 V	5
Operating Ambient Temperature Range TA		min -40 · max 85 °C	5
Operating Junction Temperature Range TJ		min -40 · max 125 °C	5
Shutdown Supply Current ISHDN	TA = +25°C, VIN = 12V; VEN = 0V	typ 1 · max 3 uA	6
Quiescent Supply Current IQ	TA = +25°C, VIN = 12V; VEN = Floating, VFB = 1.0V	typ 25 uA	6
VIN Undervoltage Rising Threshold UVLO	TA = +25°C, VIN = 12V unless otherwise specified	typ 3.5 · max 3.7 V	6
VIN Undervoltage Hysteresis UVLO	TA = +25°C, VIN = 12V unless otherwise specified	typ 400 mV	6
High-Side Power MOSFET On-Resistance (Note 8) RDS(ON)1	TA = +25°C, VIN = 12V	typ 45 mΩ	6
Low-Side Power MOSFET On-Resistance (Note 8) RDS(ON)2	TA = +25°C, VIN = 12V	typ 20 mΩ	6
HS Peak Current Limit (Note 8) IPEAK_LIMIT	TA = +25°C, VIN = 12V	min 6.8 · typ 8 · max 9.2 A	6
LS Valley Current Limit (Note 8) IVALLEY_LIMIT	TA = +25°C, VIN = 12V	typ 9 A	6
PFM Peak Current Limit IPFMPK	TA = +25°C, VIN = 12V	typ 950 mA	6
Zero Cross Current Threshold IZC	TA = +25°C, VIN = 12V	typ 0 mA	6
Oscillator Frequency fSW	TA = +25°C, VIN = 12V	min 510 · typ 570 · max 630 kHz	6
Minimum On-Time tON_MIN	TA = +25°C, VIN = 12V	typ 100 ns	6
Feedback Voltage VFB	TA = +25°C, VIN = 12V; CCM	min 792 · typ 800 · max 808 mV	6
EN Logic High Threshold VEN_H	TA = +25°C, VIN = 12V	typ 1.18 · max 1.25 V	6
EN Logic Low Threshold VEN_L	TA = +25°C, VIN = 12V	min 1.03 · typ 1.09 V	6
EN Input Current IEN	TA = +25°C, VIN = 12V; VEN = 1.5V	typ 5.5 uA	6
EN Input Current IEN	TA = +25°C, VIN = 12V; VEN = 1V	min 1 · typ 1.5 · max 2 uA	6
Soft-Start Time tSS	TA = +25°C, VIN = 12V; CSS = 10nF	typ 4 ms	6
Thermal Shutdown (Note 8) TSD	VIN = 12V	typ 160 °C	6
Thermal Shutdown Hysteresis (Note 8) THys	VIN = 12V	typ 25 °C	6

Pins, by the datasheet

1 BST: High-side gate drive boost input; connect a 100nF capacitor from BST to SW. · p. 3
2 VIN: Power input for the IC and converter MOSFETs; drive with 3.8V to 40V and bypass to GND. · p. 3
3 EN: Enable and programmable UVLO input; high enables, low disables; connect to VIN or leave floating for automatic startup. · p. 3
4 SS: Connect a ceramic capacitor to ground to program soft-start time; an internal 4uA source pulls SS toward VCC. · p. 3
5 FB: Output voltage feedback input; connect to the output resistive divider. · p. 3
6 COMP: Connect an external RC network to adjust loop response. · p. 3
7 GND: Power ground. · p. 3
8 SW: Power switching output; connect the output LC filter from SW to the output load. · p. 3
9 EXPOSED PAD: Die heat dissipation path; must connect electrically to GND and the PCB ground plane. · p. 1

Parameters

Current Limit: 8A
Features: External compensation
Frequency - Switching: 570kHz
Function: Step-down type
Junction Temperature(Max): 160℃
Number of Outputs: 1
Operating Temperature: -40℃~+85℃
Output Current: 5A
Output Type: Adjustable
Output Voltage: 800mV~39V
Quiescent Current: 25uA
Reference Voltage: 800mV
Standby Current: 1uA
Switch tube (built-in/external): Built-in
Synchronous Rectifier: Yes
Thermal Resistance(Junction to Ambient): 45℃/W
Thermal Resistance(Junction to Case): 5℃/W
Topology: Buck
Voltage - Supply: 3.8V~40V
Voltage - Supply(Absolute Max): 42V

Order codes

AP64501SP-13LCSC C2071517

Pinout

The pins of the AP64501SP
Pin	Name	Type
1	BST	Unspecified
2	VIN	Unspecified
3	EN	Unspecified
4	SS	Unspecified
5	FB	Unspecified
6	COMP	Unspecified
7	GND	Unspecified
8	SW	Unspecified
9	EP	Unspecified

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Open-source boards using it

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Questions

Is there a KiCad symbol and footprint for the AP64501SP?

Yes. The symbol is EasyEDA_Cloud:AP64351SP-13 and the footprint EasyEDA_Cloud:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP-1, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the AP64501SP?

SOIC-8-EP, with 9 pins. Its footprint is drawn on this page.

Where is the AP64501SP datasheet?

Diodes Incorporated publishes it: the Datasheet link on this page opens it.

Where can I order the AP64501SP?

JLCPCB lists it as part C2071517, with 1 in stock; the sellers' links on this page open their listings.

Which open-source boards use the AP64501SP?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.