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Diodes Incorporated AP7315-12W5-7
- Part No.:
- AP7315-12W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315-12W5-7.pdf
- Description:
- IC REG LINEAR 1.2V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,938
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Product details
Overview
AP7315-12W5-7 from Diodes Incorporated is a 150mA low-dropout linear regulator with fixed 1.2V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It features enable control, operates from 1.7V to 5.25V input, and is optimized for RF supply rails in portable wireless communication devices.
For engineers reviewing the AP7315-12W5-7 datasheet, AP7315-12W5-7 pinout, AP7315-12W5-7 application, or AP7315-12W5-7 equivalent, key selection criteria include dropout voltage at 150mA (0.50V typ for 1.2V VOUT), EN logic thresholds (0.5V max low, 1.3V min high), thermal performance in SOT25, and compatibility with 0.47µF ceramic input/output capacitors.
Technical Context
The AP7315-12W5-7 implements a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit protection. Its non-discharge configuration maintains output isolation during shutdown, avoiding unintended discharge of downstream capacitance.
It delivers stable 1.2V regulation across –40°C to +85°C ambient, with line regulation of 0.02%/V and load regulation of 0.5%/A. The device achieves 75dB ripple rejection at 1kHz while sustaining full 150mA output under worst-case dropout conditions (VIN ≥ 1.7V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% - ensures precise biasing for low-voltage RF ICs and baseband processors |
| Max Output Current | 150mA - supports moderate-power RF modules and sensor interfaces without thermal derating in SOT25 |
| Input Voltage Range | 1.7V to 5.25V - compatible with single-cell Li-ion, Li-poly, and 3.3V/5V system rails |
| PSRR @ 1kHz | 75dB - suppresses switching noise from DC-DC converters feeding adjacent analog circuitry |
| Output Noise | 60µVrms (10Hz–100kHz) - minimizes phase noise impact on VCOs and RF receivers |
| Quiescent Current | 35µA typ - enables ultra-low-power standby modes in battery-operated handheld equipment |
| Dropout Voltage | 0.50V typ @ 150mA - allows operation down to VIN = 1.7V while maintaining regulated 1.2V output |
Pinout & Package
The AP7315-12W5-7 is housed in a RoHS-compliant SOT25 (5-pin) package with exposed thermal pad. Pin 1 = VIN, Pin 2 = GND, Pin 3 = EN, Pin 4 = NC (not connected), Pin 5 = VOUT. The NC pin must be tied to GND for optimal thermal dissipation and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 1.7–5.25V; requires 0.47µF ceramic capacitor placed adjacent to minimize input impedance |
| GND (Pin 2) | Ground reference | Primary return path for load current and internal bias; connects to PCB ground plane for stability |
| EN (Pin 3) | Enable control | Active-high logic: >1.3V enables regulation; <0.5V disables output and reduces IQ to 0.01µA |
| NC (Pin 4) | No-connect terminal | Internally unconnected; recommended to tie to GND to maximize copper area for thermal conduction |
| VOUT (Pin 5) | Regulated output | Delivers 1.2V ±1% to load; requires 0.47µF ceramic capacitor placed within 2mm of pin for transient response |
Key Features
| Feature | Design Value |
|---|---|
| High PSRR | 75dB at 1kHz - rejects noise from shared power rails in dense RF front-end layouts |
| Ultra-low noise | 60µVrms (10Hz–100kHz) - preserves signal integrity in sensitive analog/RF blocks |
| Low quiescent current | 35µA - extends battery life in always-on wireless adapters and IoT sensors |
| Precision output accuracy | ±1% over temperature - eliminates need for external trimming in production calibration |
| Thermal-enhanced SOT25 | Exposed thermal pad - enables 400mW power dissipation with proper PCB copper area (GND-connected) |
Applications
| RF Power Amplifier Bias | Wireless Adapter Core Supply |
|---|---|
Use Scenario: Providing clean, low-noise 1.2V bias to GaAs or SiGe RF power amplifiers in 2.4GHz/5GHz Wi-Fi modules. IC Role / Device Role / Timing Role: Primary LDO regulator delivering stable VCC to PA driver stages, rejecting switching noise from buck converters. Use Value: 60µVrms noise and 75dB PSRR prevent AM-to-PM distortion and maintain EVM compliance under dynamic load. | Use Scenario: Powering the baseband processor and transceiver core in USB-based Bluetooth/Wi-Fi dongles. IC Role / Device Role / Timing Role: Fixed-output LDO supplying 1.2V to digital logic and PLL circuits requiring tight voltage tolerance. Use Value: ±1% output accuracy ensures reliable clock generation and memory interface timing margins. |
| Camera Sensor Interface | Portable Media Player Audio Codec |
Use Scenario: Regulating 1.2V for CIS image sensor analog front-end and column ADC drivers. IC Role / Device Role / Timing Role: Low-noise local regulator isolating sensor analog supply from noisy digital domains. Use Value: 60µVrms noise prevents fixed-pattern noise and improves SNR in low-light imaging. | Use Scenario: Supplying 1.2V to stereo audio codec DSP cores in MP3/MP4 players. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling power gating during playback pause or standby. Use Value: 35µA quiescent current and 0.01µA shutdown current extend battery runtime by >15% in idle states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 100mA max output, 6µA IQ, no enable pin, SOT23-3 package | Lacks EN control and thermal pad; unsuitable for 150mA RF loads or fast enable sequencing | Select only for space-constrained, ultra-low-IQ applications below 100mA with no enable requirement |
| Torex XC6219B122MR-G | 150mA, 1.2V, 25µA IQ, SOT25, but only 60dB PSRR @ 1kHz and 120µVrms noise | Higher output noise degrades RF receiver sensitivity; lower PSRR increases susceptibility to DC-DC coupling | Acceptable only if system-level noise budget permits 2× higher output noise and 15dB lower PSRR |
Compared with MCP1700T-1202E/TT and XC6219B122MR-G, the AP7315-12W5-7 uniquely balances 150mA capability, 75dB PSRR, 60µVrms noise, and active enable control in a thermally robust SOT25 - making it the only option meeting stringent RF supply requirements in compact wireless designs.
Availability
AP7315-12W5-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, wireless adapter core supply, and camera sensor interface applications requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for AP7315-12W5-7 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 power management, signal integrity, and connectivity applications.
The AP7315 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive RF and portable communication systems where clean, efficient, and compact voltage regulation is critical.
FAQ
What is the minimum input voltage required for AP7315-12W5-7 to regulate 1.2V at 150mA?
The AP7315-12W5-7 requires a minimum input voltage of 1.7V to sustain 150mA output at 1.2V. At this condition, the typical dropout voltage is 0.50V, meaning VIN must be ≥1.7V to maintain regulation. Below 1.7V, output voltage drops proportionally per the dropout curve in the datasheet.
Can the NC pin (Pin 4) be left floating in the SOT25 package?
No - Pin 4 is internally not connected but must be tied to GND on the PCB. This maximizes copper area for thermal conduction from the exposed thermal pad and reduces EMI susceptibility. Leaving it floating degrades thermal performance and may increase radiated emissions in RF-dense layouts.
Does AP7315-12W5-7 include short-circuit protection?
Yes - the device incorporates fold-back current limiting that clamps output current to approximately 55mA when VOUT is shorted to GND. This protects the regulator from thermal damage during fault conditions and is specified across –40°C to +85°C ambient temperature.
Is AP7315-12W5-7 qualified for automotive applications?
No - AP7315-12W5-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP7315Q series) with PPAP capability and IATF 16949 manufacturing, but this specific part number is intended for commercial portable electronics and industrial applications only.
AP7315-12W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.64V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7315-12W5-7 FAQ
1.How can I place an order for AP7315-12W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315-12W5-7 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 AP7315-12W5-7 reliable?
The price and inventory of AP7315-12W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-12W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315-12W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-12W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315-12W5-7?
AP7315-12W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315-12W5-7 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 AP7315-12W5-7?
For technical support, including AP7315-12W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-12W5-7 requirements.
6.How does Aetrix verify that AP7315-12W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315-12W5-7 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 AP7315-12W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315-12W5-7?
All AP7315-12W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-12W5-7, 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 AP7315-12W5-7 part is unused and in its original packaging.
Return procedure for AP7315-12W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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