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Diodes Incorporated AP61300QZ6-7
- Part No.:
- AP61300QZ6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-563, SOT-666
- Datasheet:
-
AP61300QZ6-7.pdf
- Description:
- IC REG BUCK ADJ 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,548
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Product details
Overview
AP61300QZ6-7 from Diodes Incorporated is an AEC-Q100 Grade 1 automotive-compliant synchronous buck converter delivering 3A continuous output current with 2.4V–5.5V input range, 0.6V–3.6V programmable output voltage, and 19μA quiescent current in PFM mode. It integrates 70mΩ high-side and 50mΩ low-side MOSFETs in a SOT563 package and targets power rails in instrument clusters and ADAS domain controllers.
For engineers reviewing the AP61300QZ6-7 datasheet, AP61300QZ6-7 pinout, AP61300QZ6-7 application, or AP61300QZ6-7 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade operating limits (–40°C to +125°C), real-world efficiency curves at 5mA/3A loads, and precise EN-mode selection thresholds for PFM/PWM operation.
Technical Context
The AP61300QZ6-7 employs Constant On-Time (COT) control with 70ns minimum on-time and 70ns minimum off-time, enabling fast transient response and stable loop behavior without external compensation. Its switching frequency is 2.2MHz at VIN=5V/VOUT=1.8V, and it supports both PFM (19μA IQ) and forced PWM (690μA IQ) modes via EN pin voltage thresholding relative to VIN.
It features integrated protection including UVLO (2.2V falling), VIN OVP (6.3V rising with 300mV hysteresis), peak/valley current limiting (5.5A/3.2A), thermal shutdown (+160°C), and soft-start (0.5ms). The feedback reference is tightly regulated at 0.600V ±2% across –40°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.4V to 5.5V DC - supports direct connection to automotive battery (cold-crank tolerant down to 2.4V) |
| IOUT Max | 3A continuous - sufficient for powering MCU cores, CAN transceivers, or display drivers in automotive ECUs |
| VFB Accuracy | 0.600V ±2% - enables precise output regulation (e.g., 1.8V ±36mV) without trimming resistors |
| IQ (PFM) | 19μA typical - extends battery runtime in always-on modules like telematics wake-up circuits |
| fSW | 2.2MHz typical at VIN=5V/VOUT=1.8V - allows use of compact 1μH inductors and reduces EMI filtering burden |
| RDS(ON) HS/LS | 70mΩ / 50mΩ - minimizes conduction loss at full load, supporting >84% efficiency at 5mA light load |
| Thermal Shutdown | +160°C with +30°C hysteresis - ensures safe operation under sustained overload or poor PCB heatsinking |
Pinout & Package
SOT563 package: 1.6mm × 1.6mm × 0.55mm body, 0.5mm pitch, thermally enhanced pad, RoHS-compliant, halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB | Feedback sensing input | Connects to resistor divider; regulates output by comparing divided VOUT to 0.6V internal reference |
| GND | Power ground reference | Primary return path for high-current switching loop; must be tied to low-inductance thermal pad |
| VIN | Main power input | Supplies IC bias and high-side/low-side MOSFETs; requires ≥22μF ceramic bypass capacitor |
| SW | Switching node output | Drives external LC filter; carries high di/dt; layout critical to minimize EMI and voltage spikes |
| EN | Enable and mode control | Digital input: logic high >0.91V enables device; voltage relative to VIN selects PFM (≥VIN–200mV) or forced PWM (<VIN–200mV) |
| OUT | Output power rail | Direct connection point for load; not internally connected to GND; may be left floating if feed-forward cap used |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in automotive power systems per IATF 16949 manufacturing |
| Programmable PFM/PWM operation | EN pin voltage thresholding enables automatic light-load efficiency optimization or fixed-frequency noise control |
| Integrated power-good signaling | Not applicable to AP61300QZ6-7 (PG function reserved for AP61302Q variant only) |
| Low-dropout (LDO) mode support | Enables regulation even when VIN approaches VOUT, improving system robustness during brown-out conditions |
| Comprehensive fault protection | UVLO, VIN OVP, peak/valley current limit, and thermal shutdown prevent damage during abnormal operating conditions |
Applications
| Automotive Instrument Clusters | ADAS Domain Controllers |
|---|---|
|
Use Scenario: Powering TFT LCD driver ICs and microcontroller subsystems in digital dashboards. IC Role / Device Role / Timing Role: Primary 3.3V/1.8V step-down regulator supplying core logic and display interface rails. Use Value: 2.2MHz switching enables small 1μH inductor footprint; 19μA IQ extends battery life during vehicle sleep mode. |
Use Scenario: Generating clean 1.2V core and 3.3V I/O supplies for radar processing SoCs. IC Role / Device Role / Timing Role: High-efficiency intermediate power stage converting 5V pre-regulator output to SoC supply rails. Use Value: COT control delivers <50mV load transient deviation at 2A→3A steps; AEC-Q100 qualification ensures reliability in safety-critical zones. |
| Automotive Telematics Units | Body Control Modules (BCM) |
|
Use Scenario: Supplying LTE modem, GNSS receiver, and secure MCU in connected car gateways. IC Role / Device Role / Timing Role: Always-on 3.3V rail generator with ultra-low quiescent current for cellular keep-alive functions. Use Value: 19μA IQ meets OEM requirements for <100μA total system sleep current; SOT563 footprint saves PCB area in space-constrained modules. |
Use Scenario: Powering LIN transceivers, sensor interfaces, and EEPROM in centralized body electronics. IC Role / Device Role / Timing Role: Secondary buck converter deriving 5V or 3.3V from main 12V battery rail via pre-regulator. Use Value: 2.4V minimum VIN supports cold-crank operation down to battery voltages of 6V; integrated OVP protects against jump-start surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ2171GJ-AEC1-P | 2.5V–5.5V VIN, 2A output, 1.2MHz fSW, 25μA IQ, QFN-8 (2mm×2mm) | Limited to 2A; lower switching frequency increases inductor size; higher IQ reduces battery life in always-on use | Select when 2A suffices and QFN thermal performance is preferred over SOT563 board-level assembly simplicity |
| TPS62130AQDGSRQ1 | 3V–17V VIN, 3A output, 2.5MHz fSW, 17μA IQ, WSON-10 (3mm×3mm) | Wider VIN range adds complexity for 5V-only systems; larger package increases PCB cost and footprint | Prefer when input voltage may exceed 5.5V (e.g., direct 12V tap) and higher thermal margin is required |
Compared with MPQ2171GJ-AEC1-P and TPS62130AQDGSRQ1, the AP61300QZ6-7 offers optimal balance of 3A capability, ultra-low 19μA IQ, compact SOT563 packaging, and strict 2.4V–5.5V automotive input compliance-making it ideal for space- and efficiency-constrained 5V-rail applications.
Availability
AP61300QZ6-7 is available at Aetrix Electronics and suitable for automotive instrument clusters, ADAS domain controllers, and telematics units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP61300QZ6-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets, with ISO/TS 16949-certified manufacturing.
The AP61300Q/AP61302Q series belongs to Diodes' automotive power management portfolio, designed specifically for high-reliability DC-DC conversion in AEC-Q100 Grade 1 environments such as infotainment, cluster, and ADAS subsystems.
FAQ
What is the difference between AP61300QZ6-7 and AP61302Q?
The AP61300QZ6-7 lacks the Power-Good (PG) open-drain output present on AP61302Q. Both share identical electrical specs, pinout, and SOT563 packaging, but AP61302Q adds PG monitoring for output voltage validation-critical in safety-critical domains where rail integrity must be externally verified.
How is PFM vs. PWM mode selected on AP61300QZ6-7?
Mode selection is controlled solely by EN pin voltage relative to VIN: applying EN ≥ VIN – 200mV enables automatic PFM at light loads; applying EN < VIN – 200mV forces continuous PWM regardless of load. No external components are needed-only the EN drive voltage level matters.
Can AP61300QZ6-7 operate with input voltage below 2.4V?
No. The absolute minimum VIN is 2.4V per datasheet specifications. Below this, undervoltage lockout (UVLO) activates at 2.2V falling threshold, disabling regulation. This ensures reliable startup after automotive cold-crank events where battery dips to ~6V-but does not support sub-2.4V operation.
What is the recommended output capacitor for AP61300QZ6-7 at 3A load?
Diodes recommends ≥22μF X5R/X7R ceramic output capacitance (e.g., two 10μF/0805 in parallel) with ≤5mΩ ESL to maintain <50mV output ripple and ensure stability under 3A load transients. Layout must minimize loop inductance between SW, OUT, and GND pins.
AP61300QZ6-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
AP61300QZ6-7 FAQ
1.How can I place an order for AP61300QZ6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP61300QZ6-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP61300QZ6-7 reliable?
The price and inventory of AP61300QZ6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP61300QZ6-7 is usually 5 days.
3.What payment methods are accepted for AP61300QZ6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP61300QZ6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP61300QZ6-7?
AP61300QZ6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP61300QZ6-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP61300QZ6-7?
For technical support, including AP61300QZ6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP61300QZ6-7 requirements.
6.How does Aetrix verify that AP61300QZ6-7 is sourced from the original manufacturer or authorized distributors?
All AP61300QZ6-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP61300QZ6-7 meets industry standards.
7.What is the process for return or replacement of AP61300QZ6-7?
All AP61300QZ6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP61300QZ6-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP61300QZ6-7 part is unused and in its original packaging.
Return procedure for AP61300QZ6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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