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Diodes Incorporated AP7313-25SAG-7
- Part No.:
- AP7313-25SAG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7313-25SAG-7.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,802
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Product details
Overview
AP7313-25SAG-7 from Diodes Incorporated is a 150mA fixed-output (2.5V) low-dropout linear regulator in SOT23 package, featuring 65µA quiescent current, 150mV dropout at full load, and 65dB PSRR at 100Hz - optimized for battery-powered portable devices requiring stable low-power voltage regulation.
For engineers reviewing the AP7313-25SAG-7 datasheet, AP7313-25SAG-7 pinout, AP7313-25SAG-7 application, or AP7313-25SAG-7 equivalent, key selection criteria include ultra-low IQ across input range (2–6V), fast 80µs startup, stability with 1µF ceramic output capacitor, and integrated thermal shutdown/current limit protection.
Technical Context
The AP7313-25SAG-7 integrates a PMOS pass element, bandgap reference, error amplifier, and protection circuitry to deliver precise 2.5V output with ±2% accuracy over –40°C to +85°C ambient. Its low 150mV typical dropout enables operation down to VIN = 2.65V while sustaining 150mA load.
Designed for transient-sensitive loads, it achieves excellent line/load regulation (≤0.2%/V and ±0.6%), sub-100µs response to 1mA–150mA load steps, and maintains stability without minimum load - all enabled by internal compensation and compatibility with low-ESR ceramic capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% over temperature and load - eliminates external feedback network and ensures consistent rail for logic or analog circuitry. |
| Max Output Current | 150mA continuous - sufficient for microcontrollers, sensors, and RF front-ends in space-constrained portable designs. |
| Quiescent Current | 65µA typical at 150mA load - extends battery life in always-on or duty-cycled applications like IoT endpoints. |
| Dropout Voltage | 150mV typical at 150mA - allows operation from single-cell Li-ion (3.0V min) or two-cell alkaline (2.65V min) with margin. |
| PSRR | 65dB at 100Hz - suppresses low-frequency power supply noise from switching converters or noisy digital domains. |
| Start-up Time | 80µs - enables rapid wake-up from deep-sleep states in battery-powered systems without voltage droop. |
| Stability | Guaranteed with 1µF X7R/X5R ceramic output capacitor - reduces BOM count and PCB area vs. larger tantalum or electrolytic solutions. |
Pinout & Package
SOT23-3 package (2.92mm × 1.3mm × 1.0mm), RoHS-compliant, green molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2V–6V DC; requires ≥1µF ceramic bypass to GND close to pin for noise immunity and stability. |
| 2 (OUT) | Regulated output | Delivers stable 2.5V; connects directly to load and 1µF ceramic capacitor to GND for transient response. |
| 3 (GND) | Ground reference | Common return path for IN and OUT; must be low-impedance with short, wide PCB traces to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA at full 150mA load - preserves battery capacity during standby and active modes in wearables and remote sensors. |
| Fast transient response | Sub-100µs recovery from 1mA↔150mA load steps - sustains clean supply for GSM/EDGE baseband ICs and fast-switching MCUs. |
| Integrated protection | Current limit (~300mA), short-circuit clamp (~50mA), and thermal shutdown (140°C trip) - eliminates need for external fault management circuitry. |
| No minimum load requirement | Stable regulation from 0mA to 150mA - simplifies design for variable-load systems like sensor nodes with intermittent transmission. |
| Low-ESR capacitor support | Stable with 10–200mΩ ESR ceramic caps - enables use of compact, high-reliability MLCCs instead of bulkier alternatives. |
Applications
| Battery-Powered Portable Devices | GSM/EDGE Baseband Power Supply |
|---|---|
|
Use Scenario: Powering Bluetooth LE modules, fitness trackers, and smart tags operating from coin-cell or single Li-ion batteries. IC Role / Device Role / Timing Role: Primary 2.5V LDO supplying MCU core, BLE radio, and analog sensors. Use Value: 65µA IQ and no-minimum-load stability extend operational lifetime between charges or battery replacements. |
Use Scenario: Regulating power for TDMA-based GSM transceivers where load jumps from 100µA (idle) to 150mA (transmit burst). IC Role / Device Role / Timing Role: Fast-transient LDO delivering clean 2.5V to RF ICs during high-current transmit pulses. Use Value: 80µs startup and controlled overshoot/undershoot prevent RF desense and digital logic errors during mode transitions. |
| USB-Powered Peripherals | Industrial Sensor Nodes |
|
Use Scenario: Providing regulated 2.5V rail for USB HID devices (keyboards, mice) drawing up to 150mA from 5V bus. IC Role / Device Role / Timing Role: Post-regulator converting 5V USB to precision 2.5V for ADC references and op-amp biasing. Use Value: 65dB PSRR at 100Hz rejects USB switcher ripple; 150mV dropout ensures headroom even under USB port voltage sag. |
Use Scenario: Powering low-power industrial temperature/humidity sensors in DIN-rail or field-mounted enclosures. IC Role / Device Role / Timing Role: Local 2.5V regulator for signal conditioning circuitry and low-energy wireless transmitters. Use Value: –40°C to +85°C operation and thermal shutdown ensure reliability in uncontrolled ambient environments. |
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 |
|---|---|---|---|
| MCP1700-2502E/TO | 250mA rating, 1.6µA IQ (lower), but 300mV dropout at 250mA - higher dropout limits usable input range. | Preferred for ultra-low-power sensor nodes where load <50mA; less suitable for 150mA bursts. | Select when IQ <2µA is critical and peak load ≤50mA; avoid if 150mA sustained current required. |
| TPS78025DRVR | 200mA rating, 500nA IQ (ultra-low), but requires 2.2µF output cap and has slower 150µs startup - higher BOM cost and latency. | Better for multi-year battery life in metering; not optimal for fast-wake applications like remote controls. | Choose for >10-year battery life with light loads; reject if fast startup (<100µs) or 1µF cap compatibility is mandatory. |
Compared with MCP1700-2502E/TO and TPS78025DRVR, AP7313-25SAG-7 uniquely balances 150mA capability, 65µA IQ, 80µs startup, and 1µF stability - making it optimal for mid-duty-cycle portable electronics where performance, size, and cost must coexist.
Availability
AP7313-25SAG-7 is available at Aetrix Electronics and suitable for battery-powered portable devices, GSM/EDGE baseband supplies, and USB-powered peripherals requiring stable component supply with guaranteed long-term sourcing.
Supply support for AP7313-25SAG-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 industrial, computing, and consumer markets.
The AP7313 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for energy-constrained portable and wireless applications demanding minimal standby power and robust transient behavior.
FAQ
What is the maximum input voltage for AP7313-25SAG-7?
The absolute maximum input voltage is 7V, but recommended operating range is 2V to 6V per datasheet specifications. Exceeding 6V risks violating absolute maximum ratings and may trigger thermal shutdown or reduce long-term reliability, especially at elevated ambient temperatures.
Can AP7313-25SAG-7 operate without an output capacitor?
No - an output capacitor is mandatory for stability and transient response. The device is specified to be stable only with 1µF to 4.7µF ceramic capacitors (X7R/X5R, 10–200mΩ ESR). Omitting it causes oscillation, output overshoot, and potential damage to downstream circuitry.
Does AP7313-25SAG-7 require a minimum load current?
No - the regulator remains stable and fully regulated from 0mA to 150mA output current. This eliminates the need for dummy loads or bleeder resistors, reducing power waste and simplifying design for intermittent-load applications like sensor wake-up cycles.
How does thermal shutdown behave under continuous overload?
When junction temperature reaches ~140°C, output is disabled; it re-enables once temperature falls to ~125°C. Under sustained overload, this causes on/off cycling - limiting average power dissipation but potentially disrupting load operation. Proper PCB copper area and thermal vias are essential to avoid triggering.
AP7313-25SAG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- 85 µA
- PSRR:
- 65dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AP7313-25SAG-7 FAQ
1.How can I place an order for AP7313-25SAG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7313-25SAG-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 AP7313-25SAG-7 reliable?
The price and inventory of AP7313-25SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-25SAG-7 is usually 5 days.
3.What payment methods are accepted for AP7313-25SAG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-25SAG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7313-25SAG-7?
AP7313-25SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7313-25SAG-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 AP7313-25SAG-7?
For technical support, including AP7313-25SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-25SAG-7 requirements.
6.How does Aetrix verify that AP7313-25SAG-7 is sourced from the original manufacturer or authorized distributors?
All AP7313-25SAG-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 AP7313-25SAG-7 meets industry standards.
7.What is the process for return or replacement of AP7313-25SAG-7?
All AP7313-25SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-25SAG-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 AP7313-25SAG-7 part is unused and in its original packaging.
Return procedure for AP7313-25SAG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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