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Diodes Incorporated AP7313-12SAG-7
- Part No.:
- AP7313-12SAG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7313-12SAG-7.pdf
- Description:
- IC REG LINEAR 1.2V 150MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,892
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Product details
Overview
AP7313-12SAG-7 from Diodes Incorporated is a 150mA fixed-output (1.2V) low-dropout linear regulator in SOT23 package, featuring 65µA quiescent current, 150mV dropout at full load, and 65dB PSRR at 100Hz - designed for battery-powered portable devices requiring stable, ultra-low-power voltage regulation.
For engineers reviewing the AP7313-12SAG-7 datasheet, AP7313-12SAG-7 pinout, AP7313-12SAG-7 application, or AP7313-12SAG-7 equivalent, key selection criteria include fast 80µs startup, stability with 1µF ceramic output capacitor, thermal shutdown at 140°C, and compatibility with 2V–6V input range in space-constrained designs.
Technical Context
The AP7313-12SAG-7 integrates a PMOS pass element, bandgap reference, error amplifier, and protection circuitry (current limit, short-circuit, thermal shutdown) in a single-die architecture optimized for low-noise, fast-transient response in battery-supplied systems.
Its internal compensation enables stable operation with 1µF ±20% X7R/X5R ceramic output capacitors across –40°C to +85°C ambient, while the 207°C/W θJA (SOT23) supports up to 150mA continuous output without external heatsinking under typical PCB layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% over –40°C to +85°C; ensures precise core voltage for low-voltage microcontrollers and sensors. |
| Max Output Current | 150mA continuous; sufficient to power single-core MCUs, RF transceivers, or sensor signal chains. |
| Dropout Voltage | 150mV typical at 150mA; enables regulation from 1.35V input, extending usable battery life in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 65µA typical at full load; minimizes standby power loss in always-on IoT nodes and wearables. |
| PSRR | 65dB at 100Hz; suppresses ripple from noisy DC-DC converters or shared power rails in mixed-signal systems. |
| Start-up Time | 80µs typical; supports rapid wake-from-sleep transitions in duty-cycled applications like GSM baseband or BLE peripherals. |
| Thermal Shutdown | Triggers at 140°C junction temperature with 15°C hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT23-3 package (2.92mm × 1.3mm × 1.0mm), RoHS-compliant "Green" molding compound, lead-free finish, 3000-piece tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input voltage supply | Accepts 2V–6V; requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and ensure stability. |
| OUT (Pin 2) | Regulated output | Delivers fixed 1.2V; stable with 1µF–4.7µF X7R/X5R ceramic capacitor; no minimum load required. |
| GND (Pin 3) | Power ground reference | Common return path for IN and OUT; must connect to low-impedance ground plane to maintain PSRR and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ operation | 65µA across full 0–150mA load and 2–6V input range - reduces battery drain in multi-year IoT deployments. |
| Fast transient response | Stable <100mV undershoot/overshoot during 0→150mA load steps - critical for DSP/GSM burst-mode power delivery. |
| Low-ESR capacitor compatibility | Stable with 10mΩ–200mΩ ESR output capacitors - enables use of compact, low-cost 0603/0805 ceramic caps without external compensation. |
| Integrated fault protection | Current limit (~300mA), short-circuit clamp (~50mA), and thermal shutdown (140°C) - eliminates need for external protection circuitry. |
Applications
| Battery-Powered Wearables | USB-Powered Peripherals |
|---|---|
|
Use Scenario: Powering ultra-low-power MCU, accelerometer, and BLE radio in fitness tracker operating from coin-cell or single Li-ion battery. IC Role / Device Role / Timing Role: Primary 1.2V core regulator supplying digital logic and analog sensor interface. Use Value: 65µA IQ extends battery life beyond 12 months; 80µs startup enables sub-100ms wake-from-sleep cycles. |
Use Scenario: Regulating 1.2V supply for USB-to-serial bridge IC and EEPROM in compact dongle or adapter. IC Role / Device Role / Timing Role: Post-regulator stepping down 3.3V USB VBUS-derived rail to meet core voltage spec of bridge controller. Use Value: 65dB PSRR at 100Hz rejects switching noise from upstream DC-DC converter; SOT23 footprint saves board area. |
| Industrial Sensor Nodes | Portable Medical Monitors |
|
Use Scenario: Providing clean 1.2V bias for precision ADC and low-noise op-amps in wireless temperature/humidity node. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from digital subsystem via PSRR performance. Use Value: 150mV dropout allows operation down to 1.35V input - maximizes usable capacity of 2xAA alkaline stack. |
Use Scenario: Powering patient-monitor SoC and optical pulse oximetry front-end in handheld clinical device. IC Role / Device Role / Timing Role: Safety-critical regulated supply enabling reliable ADC sampling and real-time waveform processing. Use Value: Thermal shutdown and short-circuit protection prevent overheating during probe insertion or cable fault events. |
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, 2µA IQ, 600mV dropout at 100mA; SOT23-3 pinout identical but lower current capability. | Not suitable for 150mA peak loads (e.g., GSM transmit bursts); better for sub-100mA always-on sensors. | Select only if load current never exceeds 100mA and ultra-low IQ dominates design priority. |
| TPS70612DBVR | 150mA, 1.2V fixed, 1.7µA IQ, 220mV dropout at 150mA; requires 2.2µF min output capacitance. | Higher dropout limits usable input range; larger output cap increases BOM cost and board area. | Prefer when nanoscale IQ is mandatory and input voltage margin >220mV above 1.2V is guaranteed. |
Compared with MCP1700T-1202E/TT and TPS70612DBVR, the AP7313-12SAG-7 uniquely balances 150mA capability, 65µA IQ, and 150mV dropout in SOT23 - making it optimal for battery-fed systems needing both peak current headroom and multi-year standby life.
Availability
AP7313-12SAG-7 is available at Aetrix Electronics and suitable for battery-powered wearables, USB peripherals, and industrial sensor nodes requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for AP7313-12SAG-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 IoT applications where extended battery life, fast dynamic response, and minimal board space are critical design requirements.
FAQ
What is the minimum input voltage required for stable 1.2V output at 150mA?
The AP7313-12SAG-7 requires VIN ≥ VOUT + VDropout = 1.2V + 0.15V = 1.35V minimum for regulation at full load. However, the recommended operating range starts at 2.0V per datasheet specifications to ensure guaranteed performance across temperature and process variation.
Can the AP7313-12SAG-7 operate without an output capacitor?
No - an output capacitor is mandatory for stability and transient response. The device is designed for 1µF–4.7µF ceramic capacitors with 10mΩ–200mΩ ESR; operation without COUT risks oscillation, overshoot, and failure to regulate under load changes.
Does the AP7313-12SAG-7 have enable or shutdown control?
No - the AP7313-12SAG-7 lacks an enable pin and operates continuously when input voltage is applied within specification. It achieves ultra-low standby current (65µA) inherently, eliminating need for external control in always-on applications.
Is the SOT23 package thermally adequate for 150mA continuous operation?
Yes - with θJA = 207°C/W on standard FR-4 (2oz copper, recommended pad layout), power dissipation at 150mA and 2V dropout (300mW) results in ~62°C junction rise above ambient, well below the 125°C max operating TJ and 140°C thermal shutdown threshold.
AP7313-12SAG-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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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
AP7313-12SAG-7 FAQ
1.How can I place an order for AP7313-12SAG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7313-12SAG-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 AP7313-12SAG-7 reliable?
The price and inventory of AP7313-12SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-12SAG-7 is usually 5 days.
3.What payment methods are accepted for AP7313-12SAG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-12SAG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7313-12SAG-7?
AP7313-12SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7313-12SAG-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 AP7313-12SAG-7?
For technical support, including AP7313-12SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-12SAG-7 requirements.
6.How does Aetrix verify that AP7313-12SAG-7 is sourced from the original manufacturer or authorized distributors?
All AP7313-12SAG-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 AP7313-12SAG-7 meets industry standards.
7.What is the process for return or replacement of AP7313-12SAG-7?
All AP7313-12SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-12SAG-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 AP7313-12SAG-7 part is unused and in its original packaging.
Return procedure for AP7313-12SAG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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