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Diodes Incorporated AP7361EA-FGE-7
- Part No.:
- AP7361EA-FGE-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AP7361EA-FGE-7.pdf
- Description:
- LDO CMOS HICURR U-DFN3030-8 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
AP7361EA-FGE-7 from Diodes Incorporated is a 1A ultra-low dropout linear regulator with adjustable/fixed output voltage, enable control, ±1% output accuracy, 360mV dropout at 3.3V/1A, and 68µA quiescent current-designed for power rail regulation in portable audio/video equipment and battery-powered systems.
For engineers reviewing the AP7361EA-FGE-7 datasheet, AP7361EA-FGE-7 pinout, AP7361EA-FGE-7 application, or AP7361EA-FGE-7 equivalent, key selection criteria include dropout voltage at full load, thermal resistance (θJA = 70°C/W) in U-DFN3030-8, EN logic thresholds (VIL ≤ 0.3V, VIH ≥ 1.0V), and stability with ≥2.2µF MLCC output capacitance.
Technical Context
The AP7361EA-FGE-7 integrates a PMOS pass element, band-gap reference (0.8V), error amplifier, and thermal shutdown circuitry. Its foldback short-circuit protection limits output to 400mA during fault conditions, while current limiting activates at 1.5A nominal.
It supports both fixed-output (1.0V–3.3V) and adjustable-mode operation via external resistor divider on the ADJ pin. The EN pin enables active-high control with 3.0MΩ internal pull-down, and the device remains stable without minimum load across –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.0A max-supports sustained full-load operation in compact portable devices. |
| Dropout Voltage | 360mV @ 3.3V/1A-enables regulation from 3.66V input, critical for single-cell Li-ion or 3.3V system rails. |
| Quiescent Current | 68µA typical-minimizes standby power loss in always-on subsystems like remote receivers or real-time clocks. |
| Output Accuracy | ±1% @ 100mA-ensures tight voltage tolerance for sensitive analog circuitry and low-voltage microcontrollers. |
| PSRR | 75dB @ 1kHz-suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C threshold with 20°C hysteresis-prevents permanent damage during transient overloads or poor PCB thermal design. |
| Input Voltage Range | 2.2V to 6.0V-compatible with LiFePO₄, dual-cell alkaline, and post-regulated 5V rails. |
Pinout & Package
AP7361EA-FGE-7 uses the U-DFN3030-8 (Type E) package: 3.0mm × 3.0mm × 0.55mm body with exposed thermal pad (EP), rated for 1700mW power dissipation and θJA = 70°C/W under standard 2"x2" FR-4 layout with thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input-requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and ensure stability. |
| 2 | GND | Analog/digital ground reference-must be connected to low-impedance ground plane; shared with EP for thermal conduction. |
| 3 | ADJ/NC | Feedback node for adjustable mode (0.8V–5.0V); NC for fixed-output variants-R1/R2 divider sets VOUT = 0.8V × (1 + R1/R2). |
| 4 | GND | Second ground terminal-reduces ground loop impedance and improves PSRR at high frequencies. |
| 5 | EN | Active-high enable-driven high (>1.0V) to activate regulator; pulled low (<0.3V) to enter shutdown (IQ ≤ 0.05µA). |
| 6 | NC | No connection-floating; must not be soldered or tied to any net. |
| 7 | NC | No connection-floating; must not be soldered or tied to any net. |
| 8 | OUT | Regulated output-requires ≥2.2µF ceramic capacitor with low ESR for stability and transient response. |
| EP | Exposed Pad | Thermal interface-must be connected to large copper area tied to GND for optimal heat dissipation and junction temperature control. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 360mV @ 3.3V/1A-enables efficient regulation from marginal input sources like partially discharged batteries. |
| Enable control with pull-down | 3.0MΩ internal EN pull-down-eliminates need for external resistor when EN is left unconnected, simplifying BOM. |
| Foldback short-circuit protection | Clamps output to ~400mA during hard shorts-limits power dissipation and prevents thermal runaway without latch-off. |
| Stability with diverse capacitors | Works with MLCC, tantalum, polymer, and electrolytic ≥2.2µF-reduces supply chain risk and eases capacitor selection. |
| Wide input range | 2.2V–6.0V operation-supports direct connection to USB, Li-ion, and multi-cell battery inputs without pre-regulation. |
Applications
| LCD TV Power Management | USB-Powered Audio DAC |
|---|---|
Use Scenario: Providing clean 3.3V bias for TCON (timing controller) and panel interface ICs in 24–55" LCD TVs. IC Role / Device Role / Timing Role: Primary post-regulator delivering low-noise, tightly regulated voltage to noise-sensitive display timing circuits. Use Value: 75dB PSRR at 1kHz suppresses ripple from upstream 5V buck converter, preventing visible horizontal banding on screen. | Use Scenario: Supplying 1.8V to high-resolution audio DAC (e.g., AK4490) in portable USB-C DAC/headphone amps. IC Role / Device Role / Timing Role: Low-quiescent-current LDO generating analog core voltage with minimal thermal impact in sealed enclosures. Use Value: 68µA IQ extends battery runtime by >12% versus typical 200µA LDOs in 10-hour playback tests. |
| Smart Home Sensor Hub | Industrial PLC I/O Module |
Use Scenario: Generating 2.5V for precision ADCs and wireless SoCs (e.g., nRF52840) in battery-operated Zigbee/Z-Wave hubs. IC Role / Device Role / Timing Role: Enable-controlled power domain regulator enabling deep-sleep wake-up sequencing and fast turn-on (<200µs). Use Value: Ultra-fast start-up allows sensor sampling within 250µs of EN assertion-critical for low-latency occupancy detection. | Use Scenario: Delivering 5.0V (via adjustable mode) to isolated RS-485 transceivers and optocoupler drivers in DIN-rail mounted PLC modules. IC Role / Device Role / Timing Role: Robust local regulator handling wide input transients (e.g., 24V industrial bus dips/spikes) with thermal shutdown recovery. Use Value: 150°C thermal shutdown with 20°C hysteresis ensures reliable fault recovery in unventilated enclosures up to 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | Fixed 3.3V output, 250mA rating, higher dropout (500mV @ 3.3V/250mA), no EN pin. | Limited to low-current digital rails; unsuitable for 1A loads or enable-controlled sequencing. | Select only for cost-sensitive, non-enable, sub-300mA applications where footprint is secondary. |
| TLS850F0TES/V2 | Automotive-grade (AEC-Q100), 500mA, integrated watchdog and reset-higher BOM cost and complexity. | Designed for ASIL-B automotive body electronics; overqualified for consumer portables. | Choose only if AEC-Q100 qualification, functional safety features, or 125°C operation are mandatory. |
Compared with MCP1703T-3302E/MB and TLS850F0TES/V2, the AP7361EA-FGE-7 uniquely balances 1A output, ultra-low dropout, enable control, and industrial temperature range in a 3×3mm DFN-making it optimal for space-constrained, battery-aware, and thermally demanding embedded systems.
Availability
AP7361EA-FGE-7 is available at Aetrix Electronics and suitable for LCD TV power management, USB-powered audio DACs, smart home sensor hubs, and industrial PLC I/O modules requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for AP7361EA-FGE-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, with manufacturing certified to IATF 16949 and environmental compliance to RoHS 3 and halogen-free standards.
The AP7361EA belongs to Diodes' high-performance LDO family targeting portable, industrial, and consumer power management-designed for efficiency, thermal robustness, and ease of integration in space-constrained designs.
FAQ
What is the minimum output capacitor required for stability with AP7361EA-FGE-7?
The AP7361EA-FGE-7 is stable with a minimum 2.2µF ceramic output capacitor (X5R/X7R) having ESR ≤ 100mΩ. Larger values improve load transient response but are not required for basic stability. Tantalum or polymer capacitors ≥2.2µF are also supported per datasheet Section 13.
Can AP7361EA-FGE-7 operate without an external resistor divider in adjustable mode?
No-the ADJ pin must be connected to a resistor divider between OUT and GND to set the output voltage in adjustable mode. Leaving ADJ floating or unconnected causes undefined regulation. For fixed-output versions, ADJ is internally connected and marked NC; the AP7361EA-FGE-7 is an adjustable variant and requires R1/R2 per the formula VOUT = 0.8V × (1 + R1/R2).
Does AP7361EA-FGE-7 support reverse polarity protection on the IN pin?
No-AP7361EA-FGE-7 lacks internal reverse-voltage protection. Applying negative voltage to IN relative to GND may damage the device. External protection (e.g., series Schottky diode or ideal diode controller) is required in systems prone to reverse battery insertion or back-driving.
How does thermal shutdown behave during continuous overload in AP7361EA-FGE-7?
When junction temperature reaches ~150°C, thermal shutdown disables the pass element. Output resumes when temperature falls to ~130°C due to 20°C hysteresis. Under sustained overload, this causes cycling-visible as intermittent output voltage collapse-protecting the die but indicating inadequate heatsinking or excessive (VIN − VOUT) × IOUT.
AP7361EA-FGE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- -
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 91 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- Current Limit
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN3030-8 (Type E)
AP7361EA-FGE-7 FAQ
1.How can I place an order for AP7361EA-FGE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361EA-FGE-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 AP7361EA-FGE-7 reliable?
The price and inventory of AP7361EA-FGE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361EA-FGE-7 is usually 5 days.
3.What payment methods are accepted for AP7361EA-FGE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361EA-FGE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361EA-FGE-7?
AP7361EA-FGE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361EA-FGE-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 AP7361EA-FGE-7?
For technical support, including AP7361EA-FGE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361EA-FGE-7 requirements.
6.How does Aetrix verify that AP7361EA-FGE-7 is sourced from the original manufacturer or authorized distributors?
All AP7361EA-FGE-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 AP7361EA-FGE-7 meets industry standards.
7.What is the process for return or replacement of AP7361EA-FGE-7?
All AP7361EA-FGE-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361EA-FGE-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 AP7361EA-FGE-7 part is unused and in its original packaging.
Return procedure for AP7361EA-FGE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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