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Diodes Incorporated AP7313-28SAG-7
- Part No.:
- AP7313-28SAG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7313-28SAG-7.pdf
- Description:
- IC REG LINEAR 2.8V 150MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
AP7313-28SAG-7 from Diodes Incorporated is a 150mA, fixed 2.8V output, low dropout linear regulator in SOT23 package with 65µA quiescent current, 150mV dropout at full load, and 65dB PSRR at 100Hz-designed for battery-powered portable devices requiring stable low-power voltage regulation.
For engineers reviewing the AP7313-28SAG-7 datasheet, AP7313-28SAG-7 pinout, AP7313-28SAG-7 application, or AP7313-28SAG-7 equivalent, key selection criteria include ultra-low IQ across load range, fast 80µs startup, stability with 1µF ceramic output capacitor, and built-in thermal shutdown, current limit, and short-circuit protection.
Technical Context
The AP7313-28SAG-7 integrates a PMOS pass element, precision band-gap reference, error amplifier, and protection circuitry (current limit, thermal shutdown, short-circuit clamp) in a single monolithic IC. Its architecture enables low dropout operation without external compensation.
It operates across 2V–6V input while maintaining ±2% output accuracy over –40°C to +85°C ambient, with line regulation of 0.01–0.20%/V and load regulation of ±0.6% from 1mA to 150mA-enabling reliable power delivery in dynamically loaded portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% - ensures precise biasing for 2.8V logic rails and RF front-end ICs. |
| Max Output Current | 150mA continuous - supports microcontrollers, sensors, and low-power transceivers in compact designs. |
| Quiescent Current | 65µA typical at 150mA - minimizes standby power loss in always-on battery applications. |
| Dropout Voltage | 150mV typical at 150mA - enables regulation from 2.95V input down to 2.8V output, extending battery runtime. |
| PSRR | 65dB at 100Hz - suppresses low-frequency ripple from switching DC/DC stages upstream. |
| Start-up Time | 80µs - allows rapid wake-up from deep-sleep modes in GSM/TDMA baseband systems. |
| Stability | With ≥1µF X7R/X5R ceramic capacitor - eliminates need for bulky tantalum or electrolytic output caps. |
Pinout & Package
AP7313-28SAG-7 is housed in a RoHS-compliant, lead-free SOT23-3 package (2.92mm × 1.3mm × 1.0mm), optimized for high thermal efficiency on FR-4 PCBs with 2oz copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2V–6V; requires ≥1µF ceramic bypass to GND near pin for noise immunity and stability. |
| 2 (OUT) | Regulated output | Delivers fixed 2.8V; connects directly to load and 1µF ceramic output capacitor adjacent to pin. |
| 3 (GND) | Ground reference | Common return path for IN and OUT; must be low-impedance with short, wide PCB trace to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA across full 0–150mA load range - extends shelf life and runtime in coin-cell and Li-ion portable systems. |
| Fast transient response | Stable under 0→150mA load steps with minimal overshoot/undershoot - critical for GSM TDMA burst-mode power delivery. |
| Integrated protection | Current limit (~300mA), short-circuit clamp (~50mA), and thermal shutdown (~140°C) - eliminates need for external fault management circuitry. |
| No minimum load requirement | Remains stable and regulated at zero load - simplifies design for intermittent-use peripherals and sleep-wake architectures. |
Applications
| Wireless Handsets | Portable Medical Sensors |
|---|---|
Use Scenario: Powering GSM baseband ICs during TDMA transmit/receive bursts with rapid 100µA ↔ 100mA load transitions. IC Role / Device Role / Timing Role: Primary LDO supplying 2.8V core voltage to DSP and RF transceiver with sub-100µs response. Use Value: Prevents voltage droop-induced bit errors and maintains RF output power stability during high-current pulses. | Use Scenario: Regulating power for wearable ECG/SpO₂ sensor nodes operating on CR2032 coin cells. IC Role / Device Role / Timing Role: Low-IQ 2.8V supply enabling multi-week battery life while supporting periodic ADC sampling and BLE transmission. Use Value: 65µA IQ reduces average current draw by >40% versus standard LDOs, directly extending operational duration. |
| USB-Powered Peripherals | Industrial IoT Edge Nodes |
Use Scenario: Providing clean 2.8V rail to USB-to-UART bridges and HID controllers in bus-powered dongles. IC Role / Device Role / Timing Role: Input-filtered LDO isolating sensitive logic from noisy USB VBUS, with 65dB PSRR rejecting switcher ripple. Use Value: Eliminates data corruption and enumeration failures caused by VBUS noise coupling into digital interfaces. | Use Scenario: Powering LoRaWAN node microcontrollers and environmental sensors in remote, unattended deployments. IC Role / Device Role / Timing Role: Primary regulator for 2.8V MCU core and analog front-end, operating across –40°C to +85°C industrial range. Use Value: Guaranteed ±2% output accuracy and thermal shutdown ensure functional safety and long-term reliability in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 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 burst loads. | Select when IQ <2µA is mandatory and peak current ≤50mA; avoid if 150mA sustained load required. |
| TPS78028DRVR | 200mA rating, 500nA IQ (ultra-low), but 200mV dropout at 200mA and requires 2.2µF output cap - larger footprint and higher BOM cost. | Better for energy-harvesting systems with µA-level average current; over-engineered for standard battery apps. | Choose only for nanoampere-quiescent designs with light, intermittent loads; not cost-effective for mainstream portable use. |
Compared with MCP1700T-2802E/TT and TPS78028DRVR, the AP7313-28SAG-7 delivers optimal balance of 150mA capability, 65µA IQ, 150mV dropout, and 1µF stability-making it the most practical choice for mid-power portable electronics where size, cost, and performance converge.
Availability
AP7313-28SAG-7 is available at Aetrix Electronics and suitable for wireless handsets, portable medical sensors, and USB-powered peripherals requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for AP7313-28SAG-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-dropout linear regulator product line, engineered specifically for space-constrained, battery-operated portable electronics demanding ultra-low quiescent current, fast transient response, and robust fault protection.
FAQ
What is the maximum input voltage for AP7313-28SAG-7?
The absolute maximum input voltage is 7V, but the recommended operating range is 2V to 6V. Exceeding 6V risks exceeding the device's power dissipation limits in SOT23 packaging, especially at elevated ambient temperatures or high load currents. Operation above 6V is not guaranteed per specifications and may trigger thermal shutdown.
Can AP7313-28SAG-7 operate without an output capacitor?
No-while the device remains stable with no minimum load current, an output capacitor is mandatory for stability and transient performance. The datasheet specifies ≥1µF X7R/X5R ceramic capacitor placed adjacent to the OUT and GND pins; omitting it causes oscillation, excessive noise, and potential failure under load transients.
Does AP7313-28SAG-7 support adjustable output voltage?
No-it is a fixed-output regulator with factory-trimmed 2.8V nominal voltage. There is no feedback pin or external resistor network option; the internal voltage reference and error amplifier are configured exclusively for 2.8V regulation. For adjustable outputs, consider Diodes' AP7361 series instead.
How does thermal shutdown behave under continuous overload?
When junction temperature reaches ~140°C, the output disables; it re-enables once temperature falls to ~125°C due to hysteresis. Under sustained overload, this results in thermal cycling-visible as intermittent output voltage collapse. This protects the die but indicates improper thermal design or excessive power dissipation beyond the SOT23's 600mW limit at 25°C ambient.
AP7313-28SAG-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):
- 2.8V
- 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
AP7313-28SAG-7 FAQ
1.How can I place an order for AP7313-28SAG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7313-28SAG-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 AP7313-28SAG-7 reliable?
The price and inventory of AP7313-28SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-28SAG-7 is usually 5 days.
3.What payment methods are accepted for AP7313-28SAG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-28SAG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7313-28SAG-7?
AP7313-28SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7313-28SAG-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 AP7313-28SAG-7?
For technical support, including AP7313-28SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-28SAG-7 requirements.
6.How does Aetrix verify that AP7313-28SAG-7 is sourced from the original manufacturer or authorized distributors?
All AP7313-28SAG-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 AP7313-28SAG-7 meets industry standards.
7.What is the process for return or replacement of AP7313-28SAG-7?
All AP7313-28SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-28SAG-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 AP7313-28SAG-7 part is unused and in its original packaging.
Return procedure for AP7313-28SAG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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