AP62301WU

Diodes Incorporated

-40℃~+125℃ 1 155uA 3A 4.2V~18V 750kHz 800mV~7V Adjustable Buck Buck Built-in Yes TSOT-26 DC-DC Converters ROHS

Extended

Datasheetdiodes/AP62301WU

Category: DC DC Converters
Package: TSOT-26
Pins: 6

Overview

The AP62301WU is a DC DC Converter made by Diodes Incorporated in a TSOT-26 package with 6 pins. -40℃~+125℃ 1 155uA 3A 4.2V~18V 750kHz 800mV~7V Adjustable Buck Buck Built-in Yes TSOT-26 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (Regulator_Switching:AP62301WU, from KiCad's library) and its footprint (Package_TO_SOT_SMD:TSOT-23-6, from KiCad's library), ready for a KiCad board. 3,286 are in stock at JLCPCB (part C3194340). 9 open-source boards in 9 repositories on GitHub use it.

Symbol

Regulator_Switching:AP62301WUFrom KiCad's library

Footprint

Package_TO_SOT_SMD:TSOT-23-6From KiCad's library

From the datasheet

Supply, least: 4.2 V · VIN, recommended operating min · p. 4
Supply, most: 18 V · VIN, recommended operating max · p. 4
Supply, absolute maximum: 20 V · VIN, absolute max DC · p. 4
Supply, absolute maximum: 22 V · VIN, absolute max for 400ms · p. 4
Works from: -40 °C · Operating ambient temperature min · p. 4
Works up to: 85 °C · Operating ambient temperature max · p. 4
Junction, hottest: 160 °C · Junction temperature absolute max · p. 4
Takes working: 275 µA · VIN, typical quiescent supply current, VFB = 0.85V · p. 5
Takes asleep: 1.5 µA · VIN, typical shutdown current, VEN = 0V · p. 5
Gives: 3 A · Rated continuous output current max · p. 1
Current limit: 3.7 A · Typical low-side valley current limit, source to drain · p. 5
Feedback reference: 800 mV · Typical feedback voltage, TA = +25°C, CCM · p. 5
Switches at: 750 kHz · Typical oscillator frequency, VIN = 12V, VOUT = 5V, CCM · p. 5
Junction to air (TSOT26 (Standard)): 70 K/W · Junction to ambient, two-layer FR-4 PCB, 2oz copper · p. 4
Junction to case (TSOT26 (Standard)): 12 K/W · Junction to case · p. 4

What it is and has

Control: Constant on-time control · p. 13
Light-load operation: PWM regardless of output load · p. 13
Output voltage range: 0.8V to 7V · p. 1
Continuous output current: 3A · p. 1
Protection: Undervoltage lockout · p. 1
Protection: Cycle-by-cycle valley current limit · p. 1
Protection: Output undervoltage protection · p. 1
Protection: Thermal shutdown · p. 1
EMI reduction: Proprietary gate driver design · p. 1
Environmental compliance: Lead-free and RoHS compliant · p. 1
Environmental compliance: Halogen and antimony free · p. 1

Around it

cap 100nF or higher: between BST and SW; Powers the high-side driver. · p. 3
cap small: between EN and GND; Optional ceramic capacitor to delay startup when EN is not driven externally. · p. 14
res 4.99 kΩ: between VOUT and FB; R1 for 1.2V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 1.2V output. · p. 17
ind 1.5 µH: between SW and VOUT; L for 1.2V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 1.2V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 1.2V output. · p. 17
cap 100 nF: between BST and SW; C6 for 1.2V output; optional C5 is open. · p. 17
res 8.66 kΩ: between VOUT and FB; R1 for 1.5V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 1.5V output. · p. 17
ind 1.5 µH: between SW and VOUT; L for 1.5V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 1.5V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 1.5V output. · p. 17
cap 100 nF: between BST and SW; C6 for 1.5V output; optional C5 is open. · p. 17
res 12.4 kΩ: between VOUT and FB; R1 for 1.8V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 1.8V output. · p. 17
ind 2.2 µH: between SW and VOUT; L for 1.8V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 1.8V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 1.8V output. · p. 17
cap 10 - 100 pF: between VOUT and FB; Optional C5 for 1.8V output. · p. 17
cap 100 nF: between BST and SW; C6 for 1.8V output. · p. 17
res 21.5 kΩ: between VOUT and FB; R1 for 2.5V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 2.5V output. · p. 17
ind 2.2 µH: between SW and VOUT; L for 2.5V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 2.5V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 2.5V output. · p. 17
cap 10 - 100 pF: between VOUT and FB; Optional C5 for 2.5V output. · p. 17
cap 100 - 220 nF: between BST and SW; C6 for 2.5V output. · p. 17
res 31.6 kΩ: between VOUT and FB; R1 for 3.3V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 3.3V output. · p. 17
ind 3.3 µH: between SW and VOUT; L for 3.3V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 3.3V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 3.3V output. · p. 17
cap 10 - 100 pF: between VOUT and FB; Optional C5 for 3.3V output. · p. 17
cap 100 - 330 nF: between BST and SW; C6 for 3.3V output. · p. 17
res 52.3 kΩ: between VOUT and FB; R1 for 5.0V output. · p. 17
res 10 kΩ: between FB and GND; R2 for 5.0V output. · p. 17
ind 3.3 µH: between SW and VOUT; L for 5.0V output. · p. 17
cap 10 µF: between VIN and GND; C1 for 5.0V output. · p. 17
cap 2 x 22 µF: between VOUT and GND; C2 for 5.0V output. · p. 17
cap 10 - 100 pF: between VOUT and FB; Optional C5 for 5.0V output. · p. 17
cap 100 - 330 nF: between BST and SW; C6 for 5.0V output. · p. 17
ind 1.2µH to 4.7µH: between SW and VOUT; General recommendation for most applications; DC current rating at least 35% higher than maximum load current; DC resistance below 30mΩ for highest efficiency. · p. 17

Specifications

Parameter	Conditions	As printed	Page
Supply Pin Voltage VIN	TA = +25°C; DC	min -0.3 · max 20 V	4
Supply Pin Voltage VIN	TA = +25°C; 400ms	min -0.3 · max 22 V	4
Switch Pin Voltage VSW	TA = +25°C; DC; maximum VIN + 0.3 V	min -1 V	4
Switch Pin Voltage VSW	TA = +25°C; 20ns; maximum VIN + 2.0 V	min -2.5 V	4
Enable/UVLO Pin Voltage VEN	TA = +25°C	min -0.3 · max 8 V	4
Feedback Pin Voltage VFB	TA = +25°C	min -0.3 · max 6 V	4
Storage Temperature TST		min -65 · max 150 °C	4
Junction Temperature TJ		max 160 °C	4
Lead Temperature TL		max 260 °C	4
Human Body Model HBM	±2000 V rating	max 2000 V	4
Charged Device Model CDM	±500 V rating	max 500 V	4
Junction to Ambient θJA	TSOT26 (Standard); FR-4 substrate, two-layer PCB, 2oz copper, minimum recommended pad layout	typ 70 °C/W	4
Junction to Case θJC	TSOT26 (Standard); FR-4 substrate, two-layer PCB, 2oz copper, minimum recommended pad layout	typ 12 °C/W	4
Supply Voltage VIN	TA = +25°C unless otherwise specified	min 4.2 · max 18 V	4
Output Voltage VOUT	TA = +25°C unless otherwise specified	min 0.8 · max 7 V	4
Operating Ambient Temperature TA		min -40 · max 85 °C	4
Operating Junction Temperature TJ		min -40 · max 125 °C	4
Shutdown Supply Current ISHDN	TJ = +25°C, VIN = 12V, VEN = 0V	typ 1.5 uA	5
Quiescent Supply Current IQ	AP62301; TJ = +25°C, VIN = 12V, VFB = 0.85V	typ 275 uA	5
VIN Power-On Reset Rising Threshold POR	TJ = +25°C, VIN = 12V; Min/Max limits across recommended junction temperature and input voltage ranges	typ 3.9 · max 4.15 V	5
VIN Undervoltage Lockout Falling Threshold UVLO	TJ = +25°C, VIN = 12V	typ 3.6 V	5
High-Side Power MOSFET On-Resistance (Note 8) RDS(ON)1	TJ = +25°C, VIN = 12V	typ 75 mΩ	5
Low-Side Power MOSFET On-Resistance (Note 8) RDS(ON)2	TJ = +25°C, VIN = 12V	typ 45 mΩ	5
LS Valley Current Limit (Note 8) IVALLEY_LIMIT	From Source to Drain; TJ = +25°C, VIN = 12V; Min/Max limits across recommended junction temperature and input voltage ranges	min 3.2 · typ 3.7 · max 4.2 A	5
Oscillator Frequency fSW	TJ = +25°C, VIN = 12V, VOUT = 5V, CCM	typ 750 kHz	5
Minimum On-Time tON_MIN	TJ = +25°C, VIN = 12V	typ 90 ns	5
Minimum Off-Time tOFF_MIN	TJ = +25°C, VIN = 12V	typ 220 ns	5
Feedback Voltage VFB	AP62301; TA = +25°C, VIN = 12V, CCM	min 0.792 · typ 0.8 · max 0.808 V	5
Feedback Voltage VFB	AP62301; CCM; Min/Max limits across recommended junction temperature and input voltage ranges	min 0.784 · typ 0.8 · max 0.816 V	5
EN Logic High Threshold VEN_H	TJ = +25°C, VIN = 12V; Min/Max limits across recommended junction temperature and input voltage ranges	typ 1.2 · max 1.25 V	5
EN Logic Low Threshold VEN_L	TJ = +25°C, VIN = 12V; Min/Max limits across recommended junction temperature and input voltage ranges	min 1.04 · typ 1.1 V	5
EN Input Current IEN	TJ = +25°C, VIN = 12V, VEN = 1.5V	typ 7 uA	5
EN Input Current IEN	TJ = +25°C, VIN = 12V, VEN = 1V; Min/Max limits across recommended junction temperature and input voltage ranges	min 1 · typ 1.5 · max 2 uA	5
Soft-Start Time tSS	TJ = +25°C, VIN = 12V	typ 2.5 ms	5
Thermal Shutdown (Note 8) TSD	VIN = 12V	typ 160 °C	5
Thermal Shutdown Hysteresis (Note 8) THys	VIN = 12V	typ 20 °C	5

Pins, by the datasheet

1 GND: Power Ground. · p. 3
2 SW: Power switching output; connect the output LC filter from SW to the output load. · p. 3
3 VIN: Power input for the IC and converter MOSFETs; drive with 4.2V to 18V and bypass to GND with a suitably large capacitor. · p. 3
4 FB: Feedback sensing terminal; connect to the output resistive divider. · p. 3
5 EN: Enable input; high enables and low disables; leave floating for automatic startup; precision threshold allows programming UVLO. · p. 3
6 BST: High-side gate drive boost input; connect a capacitor of 100nF or higher from BST to SW. · p. 3

Parameters

Current Limit: 3.7A
Features: EMI optimization (spread spectrum)
Frequency - Switching: 750kHz
Function: Step-down type
Junction Temperature(Max): 160℃
Number of Outputs: 1
Operating Temperature: -40℃~+85℃
Output Current: 3A
Output Type: Adjustable
Output Voltage: 800mV~7V
Quiescent Current: 275uA
Reference Voltage: 800mV
Standby Current: 1.5uA
Switch tube (built-in/external): Built-in
Synchronous Rectifier: Yes
Thermal Resistance(Junction to Ambient): 70℃/W
Thermal Resistance(Junction to Case): 12℃/W
Topology: Buck
Voltage - Supply: 4.2V~18V
Voltage - Supply(Absolute Max): 20V

Order codes

AP62301WU-7LCSC C3194340

Pinout

The pins of the AP62301WU
Pin	Name	Type
1	GND	Power in
2	SW	Output
3	IN	Power in
4	FB	Input
5	EN	Passive
6	BST	Passive

Open-source boards using it

All 9

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Electrical schematics and PCB gerber files for the Pulsed Eddy Current Sensor
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Questions

Is there a KiCad symbol and footprint for the AP62301WU?

Yes. The symbol is Regulator_Switching:AP62301WU and the footprint Package_TO_SOT_SMD:TSOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the AP62301WU?

TSOT-26, with 6 pins. Its footprint is drawn on this page.

Where is the AP62301WU datasheet?

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

Where can I order the AP62301WU?

JLCPCB lists it as part C3194340, with 3,286 in stock; the sellers' links on this page open their listings.

What can replace the AP62301WU?

Parts like it in the library: the TPS54302DDC by Texas Instruments, the MT3608B by XI'AN Aerosemi Tech, the SY8113IADC by 矽力杰silergy and the HFP6291LR-G1 by HXY MOSFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the AP62301WU?

9 boards in 9 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

AP62301WU

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Parameters

Order codes

Pinout

Open-source boards using it

LiBCM

Cpb

Titan 2022

PEC Sensor

Kit Altera rev0

CVTPCB

5v buck pt iii

Incubator controller

Show this part on your page

Questions

Is there a KiCad symbol and footprint for the AP62301WU?

What package is the AP62301WU?

Where is the AP62301WU datasheet?

Where can I order the AP62301WU?

What can replace the AP62301WU?

Which open-source boards use the AP62301WU?

Parts like it

TPS54302DDC

MT3608B

SY8113IADC

HFP6291LR-G1

RT6253BHGJ6F

TLV61048DBV

TPS56339DDC

HX3608