My Inquiry
My Account
Diodes Incorporated AP7313-12SRG-7
- Part No.:
- AP7313-12SRG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7313-12SRG-7.pdf
- Description:
- IC REG LIN 1.2V 150MA SOT23R-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,792
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7313-12SRG-7 from Diodes Incorporated is a 150mA fixed-output (1.2V) low-dropout linear regulator in SOT23R package, featuring 65µA typical quiescent current, 150mV dropout at full load, and 65dB PSRR at 100Hz - optimized for battery-powered portable devices requiring stable low-voltage bias with fast transient response.
For engineers reviewing the AP7313-12SRG-7 datasheet, AP7313-12SRG-7 pinout, AP7313-12SRG-7 application, or AP7313-12SRG-7 equivalent, key selection criteria include ultra-low IQ across 2–6V input range, stability with 1µF ceramic output capacitor, thermal shutdown at 140°C, and SOT23R pin compatibility for space-constrained PCB layouts.
Technical Context
The AP7313-12SRG-7 integrates a PMOS pass element, bandgap reference, error amplifier, and protection circuitry (current limit, short-circuit, thermal shutdown) in a single monolithic IC. Its architecture enables fast start-up (80µs) and excellent load/line transient response without external compensation.
It operates over −40°C to +85°C ambient, supports no-load stability, and maintains ±2% output voltage accuracy across temperature and load. The SOT23R package provides 230°C/W junction-to-ambient thermal resistance and RoHS-compliant lead-free finish.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% - ensures precise biasing for 1.2V-core logic or low-voltage microcontrollers. |
| Max Output Current | 150mA continuous - sufficient for powering sensor interfaces, RF front-ends, or MCU peripherals. |
| Dropout Voltage | 150mV typical at 150mA - enables regulation from 1.35V input, extending battery runtime 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. |
| Start-up Time | 80µs - supports rapid wake-up from deep-sleep modes in energy-harvesting or duty-cycled applications. |
| Thermal Shutdown | 140°C threshold with 15°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
SOT23R package: 3-pin surface-mount, RoHS-compliant, "Green" molding compound, 230°C/W θJA, footprint per Diodes Inc. AP02001 pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Top View) | GND | Ground reference for internal circuitry and output feedback; requires low-inductance connection to PCB ground plane. |
| 2 (Top View) | OUT | Regulated 1.2V output; must be bypassed with ≥1µF X7R/X5R ceramic capacitor placed adjacent to pin. |
| 3 (Top View) | IN | Input supply (2–6V); requires ≥1µF ceramic decoupling capacitor close to pin to suppress high-frequency noise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA across full 2–6V input and 0–150mA load - extends battery life in coin-cell or primary-cell powered devices. |
| Fast transient response | Stable 0→150mA load step with minimal overshoot/undershoot - meets GSM/TDMA baseband supply requirements. |
| Minimal external components | Stable with 1µF ceramic output capacitor only - reduces BOM count and PCB area vs. traditional LDOs requiring >10µF. |
| Integrated protection | Current limit (~300mA), short-circuit clamp (~50mA), and thermal shutdown - eliminates need for external fault management circuitry. |
Applications
| Wireless Sensor Node | GSM Baseband Power |
|---|---|
|
Use Scenario: Sub-1GHz or BLE sensor node operating on CR2032 or two AA cells with intermittent 100ms transmit bursts. IC Role / Device Role / Timing Role: Primary 1.2V supply for ultra-low-power MCU and RF transceiver during active transmission. Use Value: 65µA IQ preserves battery capacity during 99% sleep time; 80µs start-up enables immediate response to wake-up events. |
Use Scenario: Powering digital baseband ASIC in TDMA-based cellular handsets with 12.5% duty cycle. IC Role / Device Role / Timing Role: Local LDO delivering clean 1.2V to DSP core during rapid 0→150mA load transitions. Use Value: Fast transient response and 65dB PSRR prevent logic errors caused by supply rail collapse or switching noise. |
| Portable Medical Monitor | Low-Power Industrial Controller |
|
Use Scenario: Battery-backed ECG or pulse oximeter with clinical-grade analog front-end and display driver. IC Role / Device Role / Timing Role: Precision 1.2V reference supply for ADC bias and op-amp rails. Use Value: ±2% output accuracy and low noise ensure measurement repeatability; thermal shutdown protects against enclosure overheating. |
Use Scenario: DIN-rail mounted PLC I/O module powered from 5V backplane with space-limited PCB layout. IC Role / Device Role / Timing Role: Local point-of-load regulator for 1.2V FPGA configuration or microcontroller core. Use Value: SOT23R footprint saves board area; 150mV dropout allows operation down to 1.35V input during brown-out conditions. |
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-1202E/TT | 150mA, 1.2V, 1.6µA IQ (lower), but 600mV dropout at 150mA (higher); SOT23-3 package with same pinout as SOT23 (not SOT23R). | Better for ultra-low-IQ standby, but less suitable for low-input-voltage operation below 1.8V due to higher dropout. | Select if system prioritizes nanowatt standby over wide VIN range or fast transient performance. |
| TPS70612DBVR | 150mA, 1.2V, 1.3µA IQ, 220mV dropout at 150mA, 60dB PSRR at 100Hz; SOT23-5 package with enable pin (extra pin). | Requires enable control and larger footprint; lower PSRR limits noise rejection in RF-sensitive designs. | Choose when system-level enable sequencing is required and IQ is more critical than transient response or PSRR. |
Compared with MCP1700T-1202E/TT and TPS70612DBVR, the AP7313-12SRG-7 uniquely balances ultra-low IQ (65µA), low dropout (150mV), high PSRR (65dB), and SOT23R footprint - making it optimal for compact, battery-driven systems needing rapid load response without sacrificing efficiency.
Availability
AP7313-12SRG-7 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, GSM baseband power supplies, and low-power industrial controllers requiring stable component supply with consistent parametric performance and long-term lifecycle support.
Supply support for AP7313-12SRG-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, designed specifically for energy-constrained portable and battery-operated applications demanding extended runtime, fast dynamic response, and robust fault protection.
FAQ
What is the minimum input voltage required for stable 1.2V output at 150mA?
The AP7313-12SRG-7 requires a minimum input voltage of 1.35V (1.2V + 150mV dropout) to maintain regulation at full load. Below this, output voltage drops linearly with input; operation down to 2.0V input is specified for guaranteed performance across temperature and process variation.
Can the AP7313-12SRG-7 operate without an output capacitor?
No - an output capacitor is mandatory for stability and transient response. The device is optimized for 1µF to 4.7µF ceramic capacitors with 10–200mΩ ESR. Operation without COUT risks oscillation and unregulated output, even though no minimum load current is required.
How does the thermal shutdown behave under continuous overload?
When junction temperature reaches ~140°C, the output disables; it re-enables once temperature falls to ~125°C. Under sustained overload, this causes thermal cycling - visible as intermittent output voltage. This protects the IC but indicates inadequate PCB copper area or excessive power dissipation.
Is the SOT23R pinout compatible with standard SOT23 footprints?
No - SOT23R has reversed pin assignment (Pin 1 = GND, Pin 2 = OUT, Pin 3 = IN) versus standard SOT23 (Pin 1 = IN, Pin 2 = OUT, Pin 3 = GND). Using the wrong footprint causes immediate functional failure; Diodes Inc. AP02001 specifies dedicated land patterns for each variant.
AP7313-12SRG-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:
- SOT23R
AP7313-12SRG-7 FAQ
1.How can I place an order for AP7313-12SRG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7313-12SRG-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 AP7313-12SRG-7 reliable?
The price and inventory of AP7313-12SRG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-12SRG-7 is usually 5 days.
3.What payment methods are accepted for AP7313-12SRG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-12SRG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7313-12SRG-7?
AP7313-12SRG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7313-12SRG-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 AP7313-12SRG-7?
For technical support, including AP7313-12SRG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-12SRG-7 requirements.
6.How does Aetrix verify that AP7313-12SRG-7 is sourced from the original manufacturer or authorized distributors?
All AP7313-12SRG-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 AP7313-12SRG-7 meets industry standards.
7.What is the process for return or replacement of AP7313-12SRG-7?
All AP7313-12SRG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-12SRG-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 AP7313-12SRG-7 part is unused and in its original packaging.
Return procedure for AP7313-12SRG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7313-12SRG-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.…
