My Inquiry
My Account
Diodes Incorporated AP7313-28SRG-7
- Part No.:
- AP7313-28SRG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7313-28SRG-7.pdf
- Description:
- IC REG LIN 2.8V 150MA SOT23R-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7313-28SRG-7 from Diodes Incorporated is a 150mA fixed-output (2.8V) low-dropout linear regulator in SOT23R package, featuring 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 AP7313-28SRG-7 datasheet, AP7313-28SRG-7 pinout, AP7313-28SRG-7 application, or AP7313-28SRG-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, and short-circuit protection.
Technical Context
The AP7313-28SRG-7 integrates a PMOS pass element, bandgap reference, error amplifier, and protection circuitry to deliver precise 2.8V output with ±2% accuracy over –40°C to +85°C ambient. Its low dropout (150mV typ. @ 150mA) enables operation down to VIN = 3.08V while maintaining regulation.
Designed for transient-heavy loads, it achieves excellent line/load regulation (≤0.20%/V and ±0.6%), sub-100µs start-up, and fast recovery from 0→150mA load steps - critical for GSM/EDGE baseband power rails and DSP supply domains where duty-cycled current demands require minimal output voltage deviation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% over –40°C to +85°C; eliminates external feedback network and simplifies PCB layout. |
| Max Output Current | 150mA continuous; sufficient for microcontrollers, sensors, and RF front-end biasing in compact portable systems. |
| Quiescent Current | 65µA typical at 150mA load; enables >1-year battery life in always-on IoT sensors powered by coin cells. |
| Dropout Voltage | 150mV typical at 150mA; allows operation from single Li-ion (3.0V min) or two alkaline cells (3.0V fresh) without brownout. |
| PSRR | 65dB at 100Hz; suppresses low-frequency ripple from switching DC/DC stages upstream, improving analog signal integrity. |
| Start-up Time | 80µs typical; supports rapid wake-from-sleep cycles in Bluetooth LE and NB-IoT modems without supply delay penalties. |
| Stability | Guaranteed with 1µF X7R/X5R ceramic output capacitor; reduces BOM count and board area vs. larger tantalum alternatives. |
Pinout & Package
SOT23R package: 3-pin, RoHS-compliant, green molding compound; footprint matches JEDEC TO-236AB with modified pin assignment (IN/GND/OUT → Pin 3/1/2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (GND) | Ground reference | Common return path for internal bandgap, error amp, and protection circuits; requires low-inductance connection to PCB ground plane. |
| Pin 2 (OUT) | Regulated output | Delivers stable 2.8V to load; must be bypassed with ≥1µF ceramic cap placed adjacent to pin to ensure transient response and stability. |
| Pin 3 (IN) | Input supply | Accepts 2–6V input; requires ≥1µF ceramic decoupling close to pin to suppress high-frequency noise and prevent oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA over full 2–6V input range and 0–150mA load - extends shelf life and runtime in energy-harvesting and battery-backed applications. |
| Fast transient response | Minimal overshoot/undershoot during 0→150mA load steps - maintains clean supply for high-speed ADCs and RF synthesizers without external compensation. |
| Integrated protection | Thermal shutdown (140°C trip, 125°C hysteresis), current limit (~300mA), and short-circuit clamp (~50mA) - eliminates need for external fault management circuitry. |
| Low-ESR capacitor compatibility | Stable with 10–200mΩ ESR ceramic capacitors - enables use of small, low-cost, high-reliability MLCCs instead of bulkier, aging-prone electrolytics. |
Applications
| Wireless Sensor Node | GSM Baseband Power Rail |
|---|---|
|
Use Scenario: Sub-1GHz LoRaWAN node powered by CR2032 coin cell, sampling temperature every 5 minutes and transmitting once per hour. IC Role / Device Role / Timing Role: Primary 2.8V supply for MCU, RF transceiver, and analog sensor interface - active only during brief transmission bursts. Use Value: 65µA IQ minimizes standby drain; 80µs startup ensures immediate regulation upon wake-up; 1µF output cap saves space in ultra-thin enclosure. |
Use Scenario: Powering digital baseband IC in dual-mode GSM/EDGE handset during TDMA transmit bursts (12.5% duty cycle). IC Role / Device Role / Timing Role: Local LDO supplying core logic and memory interface - must respond instantly to 100µA ↔ 150mA load transitions without voltage glitch. Use Value: Fast transient response prevents bit errors; 65dB PSRR rejects switching noise from main PMIC; SOT23R footprint fits tight RF module layout. |
| USB-Powered Peripheral | Industrial Data Logger |
|
Use Scenario: USB-C powered barcode scanner with embedded ARM Cortex-M0+ MCU and laser driver, operating from 5V USB bus via local regulation. IC Role / Device Role / Timing Role: Point-of-load regulator converting 5V USB to clean 2.8V for MCU I/O and sensor interface - subject to USB port voltage sag and ESD events. Use Value: 6kV HBM ESD rating protects against connector hot-plug; 150mV dropout ensures regulation even during USB cable voltage drop; thermal shutdown prevents damage during sustained high-current scan mode. |
Use Scenario: Battery-backed environmental logger deployed in remote field sites, recording temperature/humidity every 10 seconds using low-power MCU and flash memory. IC Role / Device Role / Timing Role: Main system regulator delivering 2.8V to MCU, ADC, and SPI flash - must operate reliably across –40°C to +85°C industrial temperature range. Use Value: Guaranteed ±2% output accuracy over full temp range ensures consistent ADC reference; -40°C to +85°C ambient rating eliminates derating concerns; RoHS/green compliance meets industrial certification requirements. |
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 |
|---|---|---|---|
| MCP1700-2802E/TO | 100mA max output, 2µA IQ, 600mV dropout @ 100mA; SOT23-3 package with standard pinout (IN-GND-OUT) | Better for ultra-low-power sleep modes but insufficient for 150mA peak loads; higher dropout limits usable input range | Select when IQ < 5µA is mandatory and peak load ≤100mA; avoid if fast transient response or 150mA capability required |
| Torex XC6206P282MR | 150mA, 1.0µA IQ, 350mV dropout @ 150mA; SOT23-3 with standard pinout; no short-circuit clamp (only current limit) | Superior IQ for multi-year battery life, but slower transient response and weaker fault protection than AP7313 | Select for longest possible battery life in low-duty-cycle applications; avoid in GSM/RF systems requiring robust short-circuit immunity |
Compared with MCP1700-2802E/TO and XC6206P282MR, the AP7313-28SRG-7 uniquely balances 150mA drive, 65µA IQ, 150mV dropout, and full fault protection - making it optimal for portable systems demanding both efficiency and robustness under dynamic load conditions.
Availability
AP7313-28SRG-7 is available at Aetrix Electronics and suitable for wireless sensor nodes, GSM baseband power rails, USB-powered peripherals, and industrial data loggers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP7313-28SRG-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 portfolio, engineered specifically for battery-constrained portable electronics where extended runtime, fast wake-up, and robust fault handling are non-negotiable design requirements.
FAQ
What is the minimum input voltage required for AP7313-28SRG-7 to maintain regulation at 150mA load?
The AP7313-28SRG-7 requires VIN ≥ VOUT + VDropout = 2.8V + 0.15V = 2.95V to sustain regulation at 150mA. With typical dropout of 150mV and maximum of 300mV, design margin should assume VIN ≥ 3.1V for reliable operation across temperature and process variation.
Can AP7313-28SRG-7 operate without an output capacitor?
No - an output capacitor is mandatory for stability and transient performance. The device is specified for stable operation with 1–4.7µF ceramic capacitors (X7R/X5R, 10–200mΩ ESR). Operation without COUT risks oscillation, excessive overshoot, and potential damage during load transients.
How does the SOT23R package differ electrically from standard SOT23 for AP7313?
SOT23R has identical electrical characteristics and thermal performance (θJA = 230°C/W) but uses reversed pinout: GND on Pin 1, OUT on Pin 2, IN on Pin 3 - versus standard SOT23 (IN-OUT-GND). This avoids PCB routing conflicts in dense layouts and improves thermal coupling to ground planes via Pin 1.
Does AP7313-28SRG-7 require a minimum load current to remain stable?
No - the AP7313-28SRG-7 is specified for stable operation from zero load to full 150mA. Its internal architecture maintains regulation and loop stability without any minimum load requirement, enabling use in intermittent-operation systems like wake-on-radio sensors.
AP7313-28SRG-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:
- SOT23R
AP7313-28SRG-7 FAQ
1.How can I place an order for AP7313-28SRG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7313-28SRG-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 AP7313-28SRG-7 reliable?
The price and inventory of AP7313-28SRG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-28SRG-7 is usually 5 days.
3.What payment methods are accepted for AP7313-28SRG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-28SRG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7313-28SRG-7?
AP7313-28SRG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7313-28SRG-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 AP7313-28SRG-7?
For technical support, including AP7313-28SRG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-28SRG-7 requirements.
6.How does Aetrix verify that AP7313-28SRG-7 is sourced from the original manufacturer or authorized distributors?
All AP7313-28SRG-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 AP7313-28SRG-7 meets industry standards.
7.What is the process for return or replacement of AP7313-28SRG-7?
All AP7313-28SRG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-28SRG-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 AP7313-28SRG-7 part is unused and in its original packaging.
Return procedure for AP7313-28SRG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7313-28SRG-7 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
