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Diodes Incorporated AP61100QZ6-7
- Part No.:
- AP61100QZ6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-563, SOT-666
- Datasheet:
-
AP61100QZ6-7.pdf
- Description:
- IC REG BUCK ADJ 1A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:147,982
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Product details
Overview
AP61100QZ6-7 from Diodes Incorporated is an automotive-grade, 1A synchronous buck converter with integrated 110mΩ high-side and 80mΩ low-side MOSFETs, operating from 2.3V–5.5V input and delivering 0.6V–3.6V output. It uses Constant On-Time (COT) control for fast transient response and achieves up to 89% efficiency at 5mA light load in PFM mode. It is deployed in automotive infotainment power rails requiring AEC-Q100 Grade 1 compliance and stable 1.8V/3.3V point-of-load regulation.
For engineers reviewing the AP61100QZ6-7 datasheet, AP61100QZ6-7 pinout, AP61100QZ6-7 application, or AP61100QZ6-7 equivalent, key selection criteria include its 15μA quiescent current in PFM, 2.2MHz switching frequency at 5V/1.8V, -40°C to +125°C ambient operation, integrated OVP/UVLO/thermal shutdown, and SOT563 package suitability for space-constrained automotive PCB layouts.
Technical Context
The AP61100QZ6-7 implements a COT control architecture where on-time is inversely proportional to VIN and directly proportional to VOUT, enabling pseudo-fixed-frequency operation across input voltage variations. Its internal 0.6V ±2% reference sets output via external resistor divider, and soft-start is fixed at 0.5ms to limit inrush current.
It supports dual operation modes: PFM for ultra-low IQ (15μA) at light loads and PWM for consistent 2.2MHz switching regardless of load - selected by EN pin voltage relative to VIN. Protection includes valley-current limiting (1.9A typical), thermal shutdown at +160°C, and active discharge during UVLO/OVP events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.3V to 5.5V DC - supports direct connection to automotive 3.3V/5V distributed buses without pre-regulation. |
| IOUT Max | 1A continuous - sufficient for powering microcontrollers, display drivers, and sensor interfaces in clusters and telematics. |
| fSW | 2.2MHz typical at VIN=5V, VOUT=1.8V - enables use of compact 1μH inductors and reduces EMI filtering burden. |
| IQ (PFM) | 15μA typical - extends battery runtime in always-on automotive modules such as CAN gateways and body controllers. |
| RDS(ON) HS/LG | 110mΩ / 80mΩ - minimizes conduction loss and improves full-load efficiency without external MOSFETs. |
| Thermal Rating | TJ max = +150°C, θJA = 141°C/W (SOT563) - validated for under-hood ambient up to +125°C with standard PCB layout. |
| Feedback Ref | 0.6V ±2% - enables precise output setting from 0.6V to 3.6V using standard 1% resistors (e.g., 200kΩ/100kΩ for 1.8V). |
Pinout & Package
SOT563 package: 6-pin, 1.6mm × 1.6mm × 0.55mm, thermally enhanced leadframe, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB | Feedback sensing input | Monitors output voltage via resistive divider; deviation from 0.6V adjusts switching to maintain regulation. |
| GND | Power ground reference | Primary return path for high-current switching loop; must be connected to low-impedance ground plane. |
| VIN | Main power input | Supplies IC bias and power stage; requires local 10µF ceramic bypass capacitor to suppress switching noise. |
| SW | Switching node output | Drives external inductor; carries high di/dt current - requires short, wide trace to minimize EMI and voltage spikes. |
| EN | Enable and mode control | Logic-controlled startup/shutdown; voltage level relative to VIN selects PFM (high-Z) or forced PWM operation. |
| OUT | Output power rail | Delivers regulated DC output; connects directly to load capacitance and feedback divider; no PG function (AP61102Q variant only). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C ambient operation with HBM ±6kV and CDM ±1.5kV ESD robustness - meets automotive system-level reliability requirements. |
| Integrated power MOSFETs | 110mΩ HS + 80mΩ LS - eliminates external FETs and gate drivers, reducing BOM count and layout complexity for 1A PoL designs. |
| Programmable PFM/PWM mode | EN pin voltage threshold determines operation: >VIN−200mV → PFM; |
| Comprehensive protection suite | UVLO (1.84V fall), VIN OVP (6.3V rise), valley-current limit (1.9A), thermal shutdown (+160°C), and active output discharge - ensures fault-safe behavior in harsh automotive environments. |
| Low-noise COT control | Fixed 70ns min off-time and adaptive on-time - delivers <20mVpp output ripple at 1A and sub-10µs load transient recovery without external compensation. |
Applications
| Automotive Infotainment Power | Instrument Cluster Core Supply |
|---|---|
|
Use Scenario: Providing clean, regulated 1.8V and 3.3V rails to SoCs, audio codecs, and touch controllers in head units. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1A continuous current with fast load-step response to handle burst-mode DSP activity. Use Value: 2.2MHz switching allows small 1μH inductors and tight layout; 15μA IQ extends standby time during vehicle sleep mode. |
Use Scenario: Generating stable 2.5V/3.3V supplies for TFT LCD drivers and microcontroller peripherals in digital instrument clusters. IC Role / Device Role / Timing Role: Point-of-load DC-DC converter with integrated MOSFETs and thermal shutdown, placed near display subsystems. Use Value: AEC-Q100 Grade 1 rating ensures operation at +105°C ambient; 0.6V reference enables accurate scaling for multiple output voltages. |
| Telematics Control Unit (TCU) | ADAS Camera Module Supply |
|
Use Scenario: Powering LTE/CAN/V2X communication modules requiring low-noise, high-reliability 3.3V supply in connected car gateways. IC Role / Device Role / Timing Role: Main step-down regulator with UVLO/OVP protection to survive load-dump and cold-crank transients. Use Value: Active discharge during fault conditions prevents backfeed into upstream systems; SOT563 footprint fits dense TCU PCBs. |
Use Scenario: Delivering 1.2V/1.8V core and I/O supplies to image signal processors (ISPs) and MIPI interface blocks in surround-view cameras. IC Role / Device Role / Timing Role: Compact, high-efficiency buck converter mounted adjacent to camera module ASICs to minimize IR drop and noise coupling. Use Value: 89% efficiency at 5mA light load preserves battery during parking surveillance; COT control maintains regulation during rapid ISP clock gating. |
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 | 2.2V–17V input, 0.8A max, 2.2MHz, 25μA IQ, QFN-8 package | Wider VIN range but lower current; requires external compensation; larger footprint | Preferred when input may exceed 5.5V (e.g., 12V bus tapping); less suitable for space-constrained 1A 5V-rail designs. |
| TPS62097-Q1 | 2.5V–6V input, 1.2A max, 2.25MHz, 17μA IQ, 6-pin WSON | Higher current rating and tighter VFB tolerance (±1%), but no integrated OVP and higher RDS(ON) (140/90mΩ) | Chosen for higher accuracy or margin in current capability; requires external OVP circuitry for full automotive fault coverage. |
Compared with MPQ2171GJ-AEC1 and TPS62097-Q1, the AP61100QZ6-7 offers optimal balance of 1A capability, ultra-low 15μA PFM IQ, integrated OVP/UVLO, and minimal SOT563 footprint - making it uniquely suited for cost- and space-sensitive 5V automotive PoL applications where input stays within 2.3V–5.5V.
Availability
AP61100QZ6-7 is available at Aetrix Electronics and suitable for automotive infotainment, instrument cluster, and telematics applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for AP61100QZ6-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The AP61100Q/AP61102Q series belongs to Diodes' automotive-qualified DC-DC converter product line, designed specifically for robust, compact, and efficient point-of-load regulation in demanding vehicular environments including under-hood and cabin modules.
FAQ
What is the difference between AP61100QZ6-7 and AP61102Q?
The AP61100QZ6-7 is the AP61100Q variant in SOT563 packaging with OUT pin (Pin 6), while AP61102Q substitutes OUT with an open-drain Power-Good (PG) indicator. Both share identical electrical specs, control architecture, and protection features. The choice depends on whether system-level monitoring of output regulation status is required - PG provides fault signaling for safety-critical diagnostics.
Can AP61100QZ6-7 operate with a 3.3V input and 1.2V output?
Yes. With VIN = 3.3V and VOUT = 1.2V, the device operates within its 2.3V–5.5V input and 0.6V–3.6V output ranges. Using a 200kΩ/100kΩ resistor divider sets VOUT = 1.2V (FB = 0.6V). Efficiency exceeds 85% at 500mA load per datasheet curves, and COT control ensures stable regulation despite input/output ratio.
Does AP61100QZ6-7 require external compensation components?
No. The AP61100QZ6-7 uses Constant On-Time (COT) control with internal compensation, eliminating the need for external Type-II or Type-III compensation networks. Only input/output capacitors and the output inductor are required - simplifying design and reducing bill-of-materials for automotive-grade DC-DC stages.
How does the EN pin control operation mode?
The EN pin selects between PFM and forced PWM: applying a logic high ≥ VIN − 200mV enables PFM for lowest IQ at light loads; applying a logic high < VIN − 200mV forces continuous PWM regardless of load. This allows system firmware to dynamically optimize efficiency versus noise/EMI based on real-time operating conditions.
AP61100QZ6-7 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):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
AP61100QZ6-7 FAQ
1.How can I place an order for AP61100QZ6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP61100QZ6-7 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 AP61100QZ6-7 reliable?
The price and inventory of AP61100QZ6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP61100QZ6-7 is usually 5 days.
3.What payment methods are accepted for AP61100QZ6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP61100QZ6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP61100QZ6-7?
AP61100QZ6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP61100QZ6-7 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 AP61100QZ6-7?
For technical support, including AP61100QZ6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP61100QZ6-7 requirements.
6.How does Aetrix verify that AP61100QZ6-7 is sourced from the original manufacturer or authorized distributors?
All AP61100QZ6-7 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 AP61100QZ6-7 meets industry standards.
7.What is the process for return or replacement of AP61100QZ6-7?
All AP61100QZ6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP61100QZ6-7, 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 AP61100QZ6-7 part is unused and in its original packaging.
Return procedure for AP61100QZ6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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