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Diodes Incorporated AP7361C-12FGE-7
- Part No.:
- AP7361C-12FGE-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AP7361C-12FGE-7.pdf
- Description:
- IC REG LINEAR 1.2V 1A 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,226
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Product details
Overview
AP7361C-12FGE-7 from Diodes Incorporated is a 1A fixed-output (1.2V) ultra-low dropout linear regulator in U-DFN3030-8 (Type E) package with enable control, ±1% output accuracy, 360mV dropout at 1A (for 3.3V variant; 1.2V dropout is 600mV typ), and 60µA quiescent current - designed for power rail regulation in space-constrained portable electronics such as LCD-TV logic supplies and set-top-box SoC core rails.
For engineers reviewing the AP7361C-12FGE-7 datasheet, AP7361C-12FGE-7 pinout, AP7361C-12FGE-7 application, or AP7361C-12FGE-7 equivalent, key selection criteria include dropout voltage at 1.2V output, EN pin logic thresholds (VIH = 1.0V min), thermal resistance (θJA = 70°C/W), stability with ≥2.2µF MLCC output capacitors, and fold-back short-circuit protection limiting fault current to 400mA.
Technical Context
The AP7361C-12FGE-7 integrates a PMOS pass element, band-gap reference (0.8V), error amplifier, and thermal shutdown circuitry (trip at +150°C with 20°C hysteresis). Its fixed 1.2V output eliminates external resistor divider requirements while retaining full enable functionality.
It delivers regulated output under input voltages from 2.2V to 6.0V, supports load currents up to 1.0A, and maintains stability with ceramic, tantalum, or polymer capacitors ≥2.2µF on the output - enabling compact, low-noise power delivery in battery-powered and always-on consumer systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% - ensures precise core voltage for 1.2V I/O or processor domains without external feedback components. |
| Max Output Current | 1.0A continuous - sufficient for powering mid-power SoCs, FPGAs, or memory subsystems in consumer electronics. |
| Dropout Voltage | 600mV typical at 1.2V/300mA (per datasheet Table 1) - enables operation from 1.8V input, critical for single-cell Li-ion or Li-poly backup rails. |
| Quiescent Current | 60µA typical - minimizes standby power loss in always-on circuits like remote control receivers or HDMI hot-plug detection. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input, preserving analog/RF signal integrity. |
| Enable Threshold | VIH = 1.0V min, VIL = 0.3V max - compatible with 1.8V and 3.3V GPIOs without level-shifting, simplifying host MCU interface. |
| Thermal Shutdown | 150°C trip with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
U-DFN3030-8 (Type E) package: 3.0mm × 3.0mm × 0.55mm body, exposed thermal pad (Pin 4), matte tin-plated leads, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input; requires ≥1µF ceramic bypass capacitor close to pin to suppress supply noise and ensure stability. |
| 2 | GND | Power ground reference; must be connected to low-impedance PCB ground plane and tied directly to thermal pad. |
| 3 | OUT | Regulated 1.2V output; stable with ≥2.2µF MLCC; larger capacitance improves transient response for burst-load applications. |
| 4 | Thermal Pad | Internally connected to GND; mandatory for thermal performance - requires ≥4 thermal vias to inner/outer ground planes. |
| 5 | EN | Active-high enable; pulls up to IN or MCU GPIO; internal 3.0MΩ pull-down ensures default-off behavior if left floating. |
| 6,7,8 | NC | No connection; electrically isolated - must remain unconnected and un-bonded in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 600mV typ at 1.2V/300mA enables use with 1.8V input sources - extends battery runtime in portable devices. |
| Fold-back short-circuit protection | Limits fault current to ~400mA during OUT-to-GND shorts - prevents thermal runaway and allows safe auto-recovery. |
| Stable with small MLCCs | Guaranteed stability with ≥2.2µF ceramic output capacitors - eliminates need for bulky electrolytics, saving board space. |
| Low IQ with fast start-up | 60µA quiescent current + 150µs typical start-up time - balances ultra-low standby power with responsive wake-up in sleep-mode systems. |
| Robust protection suite | Integrated current limit (1.5A), thermal shutdown (+150°C), and ESD tolerance (>2kV HBM) - reduces need for external protection components. |
Applications
| Set-Top Box Power Rails | LCD-TV Logic Supply |
|---|---|
Use Scenario: Providing clean 1.2V core voltage to MPEG decoder SoCs and HDMI controller ICs in cost-sensitive consumer STBs. IC Role / Device Role / Timing Role: Primary post-regulator for DC-DC converter outputs, delivering low-noise, tightly regulated power with fast transient response. Use Value: PSRR of 75dB at 1kHz attenuates switching ripple from upstream buck converters, preventing video artifacts and audio noise. |
Use Scenario: Powering TCON (timing controller) and panel interface logic in 32–55" LCD TVs where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Fixed-output LDO supplying stable 1.2V to LVDS transmitter ICs and microcontroller peripherals. Use Value: U-DFN3030-8 package with 70°C/W θJA enables high-density layout without heatsinks, reducing BOM count and assembly cost. |
| Home Appliance MCU Core | Portable Media Player SoC |
Use Scenario: Regulating 1.2V for 32-bit ARM Cortex-M7 MCUs in smart washing machines and HVAC controllers operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Main system LDO with enable control synchronized to appliance sleep/wake cycles. Use Value: ±1% output accuracy and ±100ppm/°C tempco ensure consistent MCU clock stability and ADC reference integrity over temperature. |
Use Scenario: Delivering 1.2V to application processors in handheld media players with single-cell Li-ion batteries (2.8–4.2V range). IC Role / Device Role / Timing Role: Low-IQ LDO enabling >100-hour standby time while supporting rapid wake-from-sleep via EN pin. Use Value: 60µA IQ and 150µs start-up allow deep-sleep modes without sacrificing responsiveness - extending usable battery life by 12–18%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1202E/MB | 1.2V fixed, 250mA max, 6µA IQ, SOT-23-5 - lower current, much lower quiescent current, no thermal shutdown. | Suitable only for ultra-low-power microcontrollers (<250mA), not for SoC or FPGA cores requiring 1A. | Select when IQ <10µA is mandatory and load current ≤250mA; avoid for high-current digital loads. |
| Torex XC6210B122MR-G | 1.2V fixed, 1A, 12µA IQ, SOT-25 - same current rating but uses PNP pass transistor, higher dropout (1.1V at 1A), no EN pin. | Lacks enable control and has higher dropout - incompatible with 1.8V input or host-controlled power sequencing. | Choose only if enable functionality is unnecessary and input voltage ≥2.3V; verify thermal margin due to higher θJA. |
Compared with MCP1703T-1202E/MB and XC6210B122MR-G, the AP7361C-12FGE-7 uniquely combines 1A capability, 60µA IQ, active enable, and integrated thermal/current protection in a thermally optimized 3×3mm DFN - making it the only viable option for compact, robust, medium-power 1.2V regulation where both performance and safety are required.
Availability
AP7361C-12FGE-7 is available at Aetrix Electronics and suitable for LCD-TV logic supplies, set-top-box SoC rails, home appliance MCU cores, and portable media player SoC power domains requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP7361C-12FGE-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 consumer, industrial, and automotive markets.
The AP7361C belongs to Diodes' precision LDO regulator product line, engineered specifically for space-constrained, battery-sensitive applications demanding ultra-low dropout, low IQ, and comprehensive fault protection without external components.
FAQ
What is the minimum input voltage required for AP7361C-12FGE-7 to regulate 1.2V output?
The AP7361C-12FGE-7 requires a minimum input voltage of 2.2V per datasheet specifications. At 1.2V output, its typical dropout is 600mV at 300mA, meaning reliable regulation begins at VIN ≥ 1.8V - however, the absolute minimum specified VIN is 2.2V to guarantee all electrical characteristics including PSRR, load regulation, and thermal stability across temperature.
Can AP7361C-12FGE-7 operate without an output capacitor?
No. The AP7361C-12FGE-7 requires a minimum 2.2µF ceramic output capacitor connected between OUT and GND for stability, as confirmed in the Application Information section. Omitting it risks oscillation, poor transient response, and potential device failure under load changes - even though the device remains functional with no load, the capacitor is mandatory for regulation integrity.
Is the EN pin internally pulled down on AP7361C-12FGE-7?
Yes. The EN pin features an internal 3.0MΩ pull-down resistor (RENPD), ensuring the device remains disabled when the pin is left floating. This eliminates the need for an external pull-down in most designs, though tying EN directly to IN or a controlled GPIO is recommended for deterministic startup behavior in production systems.
Does AP7361C-12FGE-7 support adjustable output configurations?
No. The "-12" suffix denotes a factory-trimmed fixed 1.2V output version. Adjustable operation requires the "-ADJ" variant (e.g., AP7361C-ADJFGE-7), which uses the ADJ pin with external resistors. The -12FGE-7 has ADJ pin internally connected as NC and is not configurable - attempting to apply external feedback will not alter the output voltage.
AP7361C-12FGE-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:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.7V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN3030-8 (Type E)
AP7361C-12FGE-7 FAQ
1.How can I place an order for AP7361C-12FGE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361C-12FGE-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 AP7361C-12FGE-7 reliable?
The price and inventory of AP7361C-12FGE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361C-12FGE-7 is usually 5 days.
3.What payment methods are accepted for AP7361C-12FGE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-12FGE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361C-12FGE-7?
AP7361C-12FGE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361C-12FGE-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 AP7361C-12FGE-7?
For technical support, including AP7361C-12FGE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-12FGE-7 requirements.
6.How does Aetrix verify that AP7361C-12FGE-7 is sourced from the original manufacturer or authorized distributors?
All AP7361C-12FGE-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 AP7361C-12FGE-7 meets industry standards.
7.What is the process for return or replacement of AP7361C-12FGE-7?
All AP7361C-12FGE-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-12FGE-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 AP7361C-12FGE-7 part is unused and in its original packaging.
Return procedure for AP7361C-12FGE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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