AP623XX
Synchronous Buck ConverterThe AP623XX is a synchronous buck converter from Diodes Incorporated. View the full AP623XX datasheet below including key specifications, absolute maximum ratings.
Manufacturer
Diodes Incorporated
Category
Synchronous Buck Converter
Key Specifications
| Parameter | Value |
|---|---|
| Output Current | 3A |
| Switching Frequency | 750kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 |
| Packaging | MouseReel |
| Standard Pack Qty | 3000 |
| Supplier Device Package | TSOT-26 |
| Supplier Device Package | TSOT-26 |
| Supplier Device Package | TSOT-26 |
| Synchronous Rectifier | Yes |
| Topology | Buck |
| Input Voltage (Max) | 18V |
| Input Voltage (Min) | 4.2V |
| Output Voltage (Max) | 7V |
| Output Voltage | 0.763V |
Overview
Part: AP62300/AP62301/AP62300T — Diodes Incorporated
Type: Synchronous Buck Converter
Description: A 4.2–18 V input, 3 A synchronous buck converter with integrated 75 mΩ high-side and 45 mΩ low-side power MOSFETs, featuring Constant On-Time (COT) control for fast transient response and optimized for EMI reduction.
Operating Conditions:
- Supply voltage: 4.2–18 V
- Operating ambient temperature: -40 to 85 °C
- Operating junction temperature: -40 to 125 °C
- Output voltage: 0.8–7 V
Absolute Maximum Ratings:
- Max supply pin voltage: +20.0 V (DC)
- Max switch pin voltage: VIN + 0.3 V (DC)
- Max junction temperature: +160 °C
- Max storage temperature: -65 to +150 °C
Key Specs:
- Continuous output current: 3 A
- High-side MOSFET On-Resistance: 75 mΩ
- Low-side MOSFET On-Resistance: 45 mΩ
- LS Valley Current Limit: 3.2 A (min) to 4.2 A (max)
- Switching frequency: 750 kHz (Typ, VIN = 12V, VOUT = 5V, CCM)
- Quiescent supply current (AP62300/AP62300T): 155 μA (Typ, VFB = 0.85V)
- Feedback voltage (AP62300/AP62301): 0.784 V (Min) to 0.816 V (Max, CCM)
- Soft-start time: 2.5 ms (Typ)
Features:
- 0.8V ± 1% Reference Voltage (AP62300 and AP62301, TA = +25°C)
- 0.763V ± 1% Reference Voltage (AP62300T, TA = +25°C)
- Up to 83% Efficiency at 5mA Light Load (PFM)
- Proprietary Gate Driver Design for EMI Reduction
- Undervoltage Lockout (UVLO)
- Cycle-by-Cycle Valley Current Limit
- Thermal Shutdown
Applications:
- 5V and 12V Distributed Power Bus Supplies
- Flat Screen TV Sets and Monitors
- White Goods and Small Home Appliances
- FPGA, DSP, and ASIC Supplies
- Home Audio
- Network Systems
- Gaming Consoles
- Consumer Electronics
- General Purpose Point of Load
Package:
- SOT563
- TSOT26
Features
- VIN: 4.2V to 18V
- Output Voltage (VOUT): 0.8V to 7V
- 3A Continuous Output Current
- 0.8V ± 1% Reference Voltage (TA = +25° C)
- AP62300 and AP62301
- 0.763V ± 1% Reference Voltage (TA = +25° C)
- AP62300T
- 155μA Low Quiescent Current (Pulse Frequency Modulation)
- 750kHz Switching Frequency (VIN = 12V, VOUT = 5V)
- Up to 83% Efficiency at 5mA Light Load
- Proprietary Gate Driver Design for Best EMI Reduction
- Protection Circuitry
- Undervoltage Lockout (UVLO)
- Cycle-by-Cycle Valley Current Limit
- Thermal Shutdown
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. 'Green' Device (Note 3)
- For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
Applications
- 5V and 12V Distributed Power Bus Supplies
- Flat Screen TV Sets and Monitors
- White Goods and Small Home Appliances
- FPGA, DSP, and ASIC Supplies
- Home Audio
- Network Systems
- Gaming Consoles
- Consumer Electronics
- General Purpose Point of Load
Pin Configuration
Absolute Maximum Ratings
| Symbol | Parameter | Rating | Unit |
|---|---|---|---|
| VIN | Supply Pin Voltage | -0.3 to +20.0 (DC) | V |
| VIN | Supply Pin Voltage | -0.3 to +22.0 (400ms) | V |
| V SW | Switch Pin Voltage | -1.0 to VIN + 0.3 (DC) | V |
| V SW | Switch Pin Voltage | -2.5 to VIN + 2.0 (20ns) | V |
| V BST | Bootstrap Pin Voltage | V SW - 0.3 to V SW + 6.0 | V |
| V EN | Enable/UVLO Pin Voltage | -0.3 to +6.0 | V |
| V FB | Feedback Pin Voltage | -0.3 to +6.0 | V |
| T ST | Storage Temperature | -65 to +150 | ° C |
| T J | Junction Temperature | +160 | ° C |
| T L | Lead Temperature | +260 | ° C |
| ESD Susceptibility (Note 5) | ESD Susceptibility (Note 5) | ESD Susceptibility (Note 5) | ESD Susceptibility (Note 5) |
| HBM | Human Body Model | ±2000 | V |
| CDM | Charged Device Model | ±500 | V |
Recommended Operating Conditions
| Symbol | Parameter | Min | Max | Unit |
|---|---|---|---|---|
| VIN | Supply Voltage | 4.2 | 18 | V |
| VOUT | Output Voltage | 0.8 | 7 | V |
| T A | Operating Ambient Temperature | -40 | 85 | ° C |
| T J | Operating Junction Temperature | -40 | 125 | ° C |
Note:
- The device function is not guaranteed outside of the recommended operating conditions.
Electrical Characteristics (@ TJ = +25° C, VIN = 12V, unless otherwise specified. Min/Max limits apply across the recommended operating junction temperature range, -40° C to +125° C, and input voltage range, 4.2V to 18V, unless otherwise specified.)
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| I SHDN | Shutdown Supply Current | V EN = 0V | - | 1.5 | - | μA |
| I Q | Quiescent Supply Current | AP62300/AP62300T: V FB = 0.85V | - | 155 | - | μA |
| I Q | Quiescent Supply Current | AP62301: V FB = 0.85V | - | 275 | - | μA |
| POR | VIN Power-on Reset Rising Threshold | - | - | 3.9 | 4.15 | V |
| UVLO | VIN Undervoltage Lockout Falling Threshold | - | - | 3.6 | - | V |
| R DS(ON)1 | High-Side Power MOSFET On-Resistance (Note 8) | - | - | 75 | - | mΩ |
| R DS(ON)2 | Low-Side Power MOSFET On-Resistance (Note 8) | - | - | 45 | - | mΩ |
| I VALLEY_LIMIT | LS Valley Current Limit (Note 8) | From source to drain | 3.2 | 3.7 | 4.2 | A |
| f SW | Oscillator Frequency | VOUT = 5V, CCM | - | 750 | - | kHz |
| t ON_MIN | Minimum On-Time | - | - | 90 | - | ns |
| t OFF_MIN | Minimum Off-Time | - | - | 220 | - | ns |
| V FB | Feedback Voltage | AP62300/AP62301: T A = +25° C, CCM | 0.792 | 0.8 | 0.808 | V |
| V FB | Feedback Voltage | AP62300/AP62301: CCM | 0.784 | 0.8 | 0.816 | V |
| V FB | Feedback Voltage | AP62300T: T A = +25° C, CCM | 0.755 | 0.763 | 0.770 | V |
| V FB | Feedback Voltage | AP62300T: CCM | 0.747 | 0.763 | 0.778 | V |
| V EN_H | EN Logic High Threshold | - | - | 1.2 | 1.25 | V |
| V EN_L | EN Logic Low Threshold | - | 1.04 | 1.1 | - | V |
| I EN | EN Input Current | V EN = 1.5V | - | 7 | - | μA |
| I EN | EN Input Current | V EN = 1V | 1.0 | 1.5 | 2.0 | μA |
| t SS | Soft-Start Time | - | - | 2.5 | - | ms |
| T SD | Thermal Shutdown (Note 8) | - | - | 160 | - | ° C |
| T Hys | Thermal Shutdown Hysteresis (Note 8) | - | - | 20 | - | ° C |
Note: 8. Compliance to the datasheet limits is assured by one or more methods: production test, characterization, and/or design.
Typical Performance Characteristics (AP62300/AP62301/AP62300T @ TA = +25° C, VIN = 12V, VOUT = 5V, unless otherwise specified.)
Figure 5. Power MOSFET RDS(ON) vs. Temperature
Figure 5. Power MOSFET RDS(ON) vs. Temperature
Figure 7. Feedback Voltage vs. Temperature, AP62300T
Figure 9. VIN Power-On Reset and UVLO vs. Temperature
Figure 6. Feedback Voltage vs. Temperature, AP62300/AP62301
Figure 8. ISHDN vs. Temperature
Typical Performance Characteristics (AP62300/AP62301/AP62300T @ TA = +25° C, VIN = 12V, VOUT = 5V, unless otherwise specified.) (continued)
Figure 12. Output Short Protection, IOUT = 3A
Figure 13. Output Short Recovery, IOUT = 3A
Thermal Information
| Symbol | Parameter | Rating | Rating | Unit |
|---|---|---|---|---|
| θ JA | Junction to Ambient | SOT563 | 110 | ° C/W |
| θ JA | Junction to Ambient | TSOT26 | 70 | ° C/W |
| θ JC | Junction to Case | SOT563 | 8 | ° C/W |
| θ JC | Junction to Case | TSOT26 | 12 | ° C/W |
Note: 6. Test condition for SOT563/TSOT26: Device mounted on FR-4 substrate, two-layer PCB, 2oz copper, with minimum recommended pad layout.
Typical Application
VIN = 12V, VOUT = 5V, L = 3.3μH VIN = 12V, VOUT = 3.3V, L = 3.3μH
Figure 2. Efficiency vs. Output Current, AP62300/AP62300T
VIN = 12V, VOUT = 5V, L = 3.3μH VIN = 12V, VOUT = 3.3V, L = 3.3μH
Figure 3. Efficiency vs. Output Current, AP62301
Package Information
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT563
TSOT26
| SOT563 | SOT563 | SOT563 | SOT563 |
|---|---|---|---|
| Dim | Min | Max | Typ |
| A | 0.55 | 0.60 | 0.60 |
| b | 0.15 | 0.30 | 0.20 |
| c | 0.10 | 0.18 | 0.11 |
| D | 1.50 | 1.70 | 1.60 |
| E | 1.55 | 1.70 | 1.60 |
| E1 | 1.10 | 1.25 | 1.20 |
| e | - | - | 0.50 |
| e1 | 0.90 | 1.10 | 1.00 |
| L | 0.10 | 0.30 | 0.20 |
| a | 8 ° | 9 ° | 7 ° |
| All Dimensions inmm | All Dimensions inmm | All Dimensions inmm | All Dimensions inmm |
| TSOT26 | TSOT26 | TSOT26 | TSOT26 |
|---|---|---|---|
| Dim | Min | Max | Typ |
| A | - | 1.00 | - |
| A1 | 0.010 | 0.100 | - |
| A2 | 0.840 | 0.900 | - |
| D | 2.800 | 3.000 | 2.900 |
| E | 2.800 BSC | 2.800 BSC | 2.800 BSC |
| E1 | 1.500 | 1.700 | 1.600 |
| b | 0.300 | 0.450 | - |
| c | 0.120 | 0.200 | - |
| e | 0.950 BSC | 0.950 BSC | 0.950 BSC |
| e1 | 1.900 BSC | 1.900 BSC | 1.900 BSC |
| L | 0.30 | 0.50 | - |
| L2 | 0.250 BSC | 0.250 BSC | 0.250 BSC |
| θ | 0° | 8° | 4° |
| θ1 | 4° | 12° | - |
| All Dimensions inmm | All Dimensions inmm | All Dimensions inmm | All Dimensions inmm |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| AP62300 | Diodes Incorporated | — |
| AP62300T | Diodes Incorporated | — |
| AP62300TWU-7 | Diodes Incorporated | SOT-23-6 Thin, TSOT-23-6 |
| AP62300WU-7 | Diodes Incorporated | — |
| AP62300Z6-7 | Diodes Incorporated | — |
| AP62301 | Diodes Incorporated | — |
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