

AP63201WU
Diodes Incorporated
-40℃~+85℃ 1 22uA 2A 3.8V~32V 500kHz Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHS
- Category
- DC DC Converters
- Package
- TSOT-23-6
- Pins
- 6
Overview
The AP63201WU is a DC DC Converter made by Diodes Incorporated in a TSOT-23-6 package with 6 pins. -40℃~+85℃ 1 22uA 2A 3.8V~32V 500kHz Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (Regulator_Switching:AP63201WU, from KiCad's library) and its footprint (Package_TO_SOT_SMD:TSOT-23-6, from KiCad's library), ready for a KiCad board. 2,147 are in stock at JLCPCB (part C2071044). 13 open-source boards in 10 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
16- Supply, least
- 3.8 V · VIN, recommended operating min · p. 4
- Supply, most
- 32 V · VIN, recommended operating max · p. 4
- Supply, absolute maximum
- 35 V · VIN, absolute max DC · p. 4
- Supply, absolute maximum
- 40 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
- 258 µA · VIN quiescent current typical, AP63201, VEN = OPEN, VFB = 1.0V · p. 5
- Takes asleep
- 1 µA · Shutdown supply current typical, VEN = 0V · p. 5
- Gives
- 2 A · Continuous output current max · p. 1
- Current limit
- 2.8 A · High-side peak current limit typical · p. 5
- Current limit
- 3.2 A · Low-side valley current limit typical · p. 5
- Feedback reference
- 800 mV · Feedback voltage typical, CCM, AP63201 · p. 5
- Switches at
- 500 kHz · Oscillator frequency typical, AP63201 · p. 5
- Junction to air (TSOT26)
- 89 K/W · Junction to ambient, single-layer FR-4 board, 2oz copper · p. 4
- Junction to case (TSOT26)
- 39 K/W · Junction to case · p. 4
What it is and has
12- Output current
- 2A continuous · p. 1
- Reference voltage
- 0.8V ±1% · p. 1
- Switching frequency
- 500kHz · p. 1
- Control mode
- Fixed 500kHz PWM with FSS; continuous conduction at light load · p. 10
- EMI reduction
- Frequency Spread Spectrum · p. 1
- Enable
- Precision enable threshold to adjust UVLO · p. 1
- Protection
- Overvoltage protection · p. 1
- Protection
- Cycle-by-cycle peak current limit · p. 1
- Protection
- Thermal shutdown · p. 1
- Package
- TSOT26 · p. 1
- Compliance
- Lead-free and RoHS compliant · p. 1
- Material composition
- Halogen and antimony free · p. 1
Around it
21- cap 10 µF
- between VIN and GND; C1; recommended component selections use this value for all listed AP63201 output voltages. · p. 13
- cap 2 x 22 µF
- between VOUT and GND; C2; recommended component selections use this value for all listed AP63201 output voltages. · p. 13
- cap 100nF
- between BST and SW; Required ceramic bootstrap capacitor. · p. 14
- cap 100 pF
- between VOUT and FB; C4; recommended for 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V outputs. · p. 13
- cap 56 pF
- between VOUT and FB; C4; recommended for 12V output. · p. 13
- res 30.9 kΩ
- between VOUT and FB; R1 for 1.2V output. · p. 13
- res 54.2 kΩ
- between VOUT and FB; R1 for 1.5V output. · p. 13
- res 77.5 kΩ
- between VOUT and FB; R1 for 1.8V output. · p. 13
- res 131 kΩ
- between VOUT and FB; R1 for 2.5V output. · p. 13
- res 196 kΩ
- between VOUT and FB; R1 for 3.3V output. · p. 13
- res 157 kΩ
- between VOUT and FB; R1 for 5V output. · p. 13
- res 249 kΩ
- between VOUT and FB; R1 for 12V output. · p. 13
- res 62 kΩ
- between FB and GND; R2 for 1.2V, 1.5V, 1.8V, 2.5V and 3.3V outputs. · p. 13
- res 30 kΩ
- between FB and GND; R2 for 5V output. · p. 13
- res 18 kΩ
- between FB and GND; R2 for 12V output. · p. 13
- ind 2.2 µH
- between SW and VOUT; Recommended for 1.2V and 1.5V outputs. · p. 13
- ind 3.3 µH
- between SW and VOUT; Recommended for 1.8V and 2.5V outputs. · p. 13
- ind 6.8 µH
- between SW and VOUT; Recommended for 3.3V output. · p. 13
- ind 10 µH
- between SW and VOUT; Recommended for 5V and 12V outputs. · p. 13
- cap greater than 10µF
- between VIN and GND; Ceramic input capacitor sufficient for most applications. · p. 13
- cap 22µF to 68µF
- between VOUT and GND; Ceramic output capacitor; large capacitance and low ESR preferred. · p. 14
Specifications
33| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply Voltage VIN | TA = +25°C; DC | min -0.3 · max 35 V | 4 |
| Supply Voltage VIN | TA = +25°C; 400ms | min -0.3 · max 40 V | 4 |
| Switch Node Voltage VSW | TA = +25°C; maximum VIN + 0.3 V | min -1 V | 4 |
| Feedback Voltage VFB | TA = +25°C | min -0.3 · max 6 V | 4 |
| Enable/UVLO Voltage VEN | TA = +25°C | min -0.3 · max 35 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 Mode HBM | max 2000 V | 4 | |
| Charge Device Model CDM | max 1000 V | 4 | |
| Junction to Ambient θJA | TSOT26; FR-4 substrate, single-layer PC board, 2oz copper, minimum recommended pad layout | typ 89 °C/W | 4 |
| Junction to Case θJC | TSOT26; FR-4 substrate, single-layer PC board, 2oz copper, minimum recommended pad layout | typ 39 °C/W | 4 |
| Supply Voltage VIN | TA = +25°C | min 3.8 · max 32 V | 4 |
| Operating Ambient Temperature Range TA | min -40 · max 85 °C | 4 | |
| Shutdown Supply Current ISHDN | VEN = 0V; TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | typ 1 · max 3 uA | 5 |
| Supply Current (Quiescent) IQ | AP63201; VEN = OPEN, VFB = 1.0V; TA = +25°C, VIN = 12V | typ 258 uA | 5 |
| VIN Under Voltage Threshold (Rising) UVLO | TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 3.3 · typ 3.5 · max 3.7 V | 5 |
| VIN Under Voltage Threshold Hysteresis UVLO | TA = +25°C, VIN = 12V | typ 440 mV | 5 |
| High-Side Switch On-Resistance (Note 8) RDS(ON)1 | TA = +25°C, VIN = 12V | typ 125 mΩ | 5 |
| Low-Side Switch On-Resistance (Note 8) RDS(ON)2 | TA = +25°C, VIN = 12V | typ 68 mΩ | 5 |
| HS Peak Current Limit (Note 8) IPEAK_LIMIT | TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 2.5 · typ 2.8 · max 3.1 A | 5 |
| LS Valley Current Limit (Note 8) IVALLEY_LIMIT | TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 2.5 · typ 3.2 · max 3.9 A | 5 |
| Oscillator Frequency fSW | AP63201; TA = +25°C, VIN = 12V | typ 500 kHz | 5 |
| Frequency Spread Spectrum FSS | TA = +25°C, VIN = 12V; typical ±6% | typ 6 % | 5 |
| Minimum On Time tON | TA = +25°C, VIN = 12V | typ 80 ns | 5 |
| Feedback Voltage VFB | CCM, AP63201; TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 792 · typ 800 · max 808 mV | 5 |
| EN Logic High VEN_H | TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 1.15 · typ 1.18 · max 1.23 V | 5 |
| EN Logic Low VEN_L | TA = +25°C, VIN = 12V; min/max across recommended temperature and input voltage ranges | min 1.05 · typ 1.1 · max 1.15 V | 5 |
| EN Input Current IEN | VEN = 1.5V; TA = +25°C, VIN = 12V | typ 5.5 uA | 5 |
| EN Input Current IEN | VEN = 1V; TA = +25°C, VIN = 12V | typ 1.5 uA | 5 |
| Soft-Start Period tSS | TA = +25°C, VIN = 12V | typ 4 ms | 5 |
| Thermal Shutdown (Note 8) TSD | VIN = 12V | typ 160 °C | 5 |
| Thermal Hysteresis (Note 8) THYS | VIN = 12V | typ 25 °C | 5 |
Pins, by the datasheet
6- 1 FB
- Output feedback sensing terminal; connect to the output resistive divider. · p. 2
- 2 EN
- Digital enable input; high enables and low disables. Attach to VIN or leave open for automatic startup; precision threshold permits UVLO programming. · p. 2
- 3 VIN
- Power input for the IC and converter switches; connect a 3.8V to 32V source and bypass to GND. · p. 2
- 4 GND
- Power Ground. · p. 2
- 5 SW
- Power switching output; connect the output LC filter to the load and a capacitor from SW to BST. · p. 2
- 6 BST
- High-side gate drive boost input; connect a 100nF capacitor from SW to BST. · p. 2
Parameters
19- Current Limit
- 2.8A
- Features
- Cycle-by-cycle current limiting
- Frequency - Switching
- 500kHz
- Function
- Step-down type
- Junction Temperature(Max)
- 160℃
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+85℃
- Output Current
- 2A
- Output Type
- Adjustable
- Quiescent Current
- 258uA
- Reference Voltage
- 800mV
- Standby Current
- 1uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- Yes
- Thermal Resistance(Junction to Ambient)
- 89℃/W
- Thermal Resistance(Junction to Case)
- 39℃/W
- Topology
- Buck
- Voltage - Supply
- 3.8V~32V
- Voltage - Supply(Absolute Max)
- 35V
Order codes
1- AP63201WU-7LCSC C2071044
Pinout
6| Pin | Name | Type |
|---|---|---|
| 1 | FB | Input |
| 2 | EN | Input |
| 3 | IN | Power in |
| 4 | GND | Power in |
| 5 | SW | Output |
| 6 | BST | Passive |
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Is there a KiCad symbol and footprint for the AP63201WU?
Yes. The symbol is Regulator_Switching:AP63201WU 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 AP63201WU?
TSOT-23-6, with 6 pins. Its footprint is drawn on this page.
Where is the AP63201WU datasheet?
Diodes Incorporated publishes it: the Datasheet link on this page opens it.
Where can I order the AP63201WU?
JLCPCB lists it as part C2071044, with 2,147 in stock; the sellers' links on this page open their listings.
What can replace the AP63201WU?
Parts like it in the library: the TPS562201DDC by Texas Instruments, the SX1308 by SX, the ETA8120S2G by etasolution and the LN2220PAR by NATLINEAR. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the AP63201WU?
13 boards in 10 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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