My Inquiry
My Account
Diodes Incorporated AS78L05RTR-G1
- Part No.:
- AS78L05RTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AS78L05RTR-G1.pdf
- Description:
- IC REG LINEAR 5V 100MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:340,071
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AS78L05RTR-G1 from Diodes Incorporated is a fixed-output +5V, 100mA positive voltage regulator in SOT-89 package with internal current limiting, thermal shutdown, and safe-area protection. It delivers stable local regulation for microprocessor power supplies and on-card applications, maintaining ±5% output accuracy over –40°C to +125°C with dropout voltage of 1.7V at 40mA load.
For engineers reviewing the AS78L05RTR-G1 datasheet, AS78L05RTR-G1 pinout, AS78L05RTR-G1 application, or AS78L05RTR-G1 equivalent, key selection criteria include input voltage range (up to 30V), quiescent current (3–5.5mA), PSRR (47–62dB at 120Hz), noise performance (40µV RMS), and thermal resistance (28.3°C/W).
Technical Context
This linear regulator uses a PNP pass transistor architecture with built-in short-circuit and thermal overload protection. Its internal safe-area compensation ensures reliable operation under transient overloads without external components.
Designed for low-noise, low-quiescent-current operation, it achieves 40µV output noise (10Hz–100kHz) and maintains regulation across 1mA–100mA load range while rejecting line ripple up to 62dB at 120Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±5% (guaranteed over full temperature and load range) |
| Max Output Current | 100mA (continuous, with adequate heatsinking) |
| Input Voltage Range | 7–30V (supports wide-input industrial and consumer rails) |
| Dropout Voltage | 1.7V at 40mA (enables operation from 6.7V minimum input) |
| PSRR | 47–62dB at 120Hz (effective rejection of rectified AC ripple) |
| Output Noise | 40µV RMS (10Hz–100kHz; suitable for noise-sensitive analog/microcontroller supplies) |
| Quiescent Current | 3–5.5mA (low standby power for battery-adjacent or always-on circuits) |
| Thermal Resistance θJC | 28.3°C/W (SOT-89 package enables >500mW dissipation with PCB copper) |
Pinout & Package
SOT-89 package: 3-pin surface-mount plastic package with exposed thermal pad (pin 2 is GND, providing primary thermal path). Dimensions: 4.6 × 2.6 × 1.6mm (L×W×H), lead pitch 1.5mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INPUT | Unregulated DC input (max 30V); connects to upstream filter capacitor |
| 2 | GND | Ground reference and primary thermal conduction path to PCB copper |
| 3 | OUTPUT | Stable +5V regulated output; requires 0.1µF ceramic capacitor per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Self-contained regulation with integrated pass element and protection circuitry |
| Internal thermal shutdown | Activates at ~150°C junction temperature to prevent permanent damage during overload |
| Safe-area protected output transistor | Prevents secondary breakdown under simultaneous high-voltage/high-current stress |
| ±5% output voltage tolerance | Tight regulation maintained across –40°C to +125°C ambient without trimming |
| Lead-free and green compliant | G1 suffix indicates RoHS-compliant, halogen-free packaging per Diodes Inc. standards |
Applications
| Microprocessor Power Supply | Consumer Audio Front-End |
|---|---|
|
Use Scenario: Providing clean 5V rail to 8-bit/16-bit microcontrollers in smart home sensors and remote controls. IC Role / Device Role / Timing Role: Local point-of-load regulator replacing bulk supply for logic core and I/O peripherals. Use Value: Low 40µV noise prevents ADC conversion errors and digital glitching; 3mA quiescent current extends battery life in intermittently active devices. |
Use Scenario: Powering op-amps, DACs, and headphone drivers in portable Bluetooth speakers and soundbars. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from noisy digital subsystems. Use Value: 62dB PSRR suppresses switching noise from Class-D amplifiers; ±5% accuracy ensures consistent audio gain staging. |
| Industrial PLC I/O Module | USB Peripheral Hub Logic |
|
Use Scenario: Regulating 5V for isolated digital I/O buffers and level translators in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Input-tolerant local regulator handling wide 7–30V field bus inputs. Use Value: 30V max input withstands industrial transients; thermal shutdown protects against enclosure overheating during extended operation. |
Use Scenario: Generating 5V for USB 2.0 hub controller ICs and status LEDs in compact docking stations. IC Role / Device Role / Timing Role: Compact, low-profile supply for space-constrained Type-A/C hub PCBs. Use Value: SOT-89 footprint saves board area vs. TO-92; 28.3°C/W θJC allows full 100mA delivery without heatsink in 4-layer boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar +5V linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78L05ACZ-TR | Higher quiescent current (5.5–8mA), wider VOUT tolerance (±6%), TO-92 only | Limited thermal performance (θJA = 180°C/W); unsuitable for >50mA continuous loads in compact layouts | Choose when legacy TO-92 compatibility is mandatory and power density is not constrained. |
| MCP1700T-5002E/MB | Lower IQ (1.6µA), but only 250mA max; no internal short-circuit protection; requires external capacitor | Optimized for ultra-low-power sleep modes, not robust industrial load transients | Prefer for battery-powered IoT nodes where standby current dominates lifetime; avoid for mains-powered systems with surge risk. |
Compared with LM78L05ACZ-TR and MCP1700T-5002E/MB, AS78L05RTR-G1 balances moderate quiescent current (3–5.5mA), robust protection (thermal + short-circuit + safe-area), and SOT-89 thermal performance-making it optimal for cost-sensitive, thermally constrained 5V local regulation in industrial and consumer edge devices.
Availability
AS78L05RTR-G1 is available at Aetrix Electronics and suitable for microprocessor power supplies, consumer audio front-ends, and industrial PLC I/O modules requiring stable component supply, RoHS compliance, and SOT-89 thermal efficiency.
Supply support for AS78L05RTR-G1 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, automotive, and consumer markets.
The AS78LXX series targets cost-effective, robust local regulation in space- and thermal-constrained applications-designed to replace legacy 78Lxx regulators with improved thermal performance and tighter output tolerance.
FAQ
What is the maximum allowable input voltage for AS78L05RTR-G1?
The absolute maximum input voltage is 36V, but the recommended operating range is 7–30V for AS78L05. Exceeding 30V risks exceeding the 750mW power dissipation limit at full load and elevated ambient temperatures, potentially triggering thermal shutdown.
Does AS78L05RTR-G1 require input and output capacitors?
Yes: a 0.33µF ceramic capacitor on the input and a 0.1µF ceramic capacitor on the output are required per the datasheet to ensure stability and transient response. The 0.01µF minimum load capacitance recommendation applies only for high-frequency noise suppression beyond standard operation.
How does the SOT-89 package improve thermal performance over TO-92?
The SOT-89's θJC of 28.3°C/W-versus TO-92's 40°C/W-reduces junction-to-case temperature rise by ~30% at 100mA. Combined with its exposed thermal pad soldered to PCB copper, it enables sustained 100mA operation without external heatsinks in typical 4-layer designs.
Is AS78L05RTR-G1 suitable for automotive applications?
No: while rated for –40°C to +125°C junction temperature, it lacks AEC-Q100 qualification, automotive-grade screening, and extended reliability testing. It is intended for industrial and consumer applications-not safety-critical or automotive power domains.
AS78L05RTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.8V @ 100mA (Typ)
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 5.5 mA
- Current - Supply (Max):
- -
- PSRR:
- 62dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AS78L05RTR-G1 FAQ
1.How can I place an order for AS78L05RTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AS78L05RTR-G1 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 AS78L05RTR-G1 reliable?
The price and inventory of AS78L05RTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AS78L05RTR-G1 is usually 5 days.
3.What payment methods are accepted for AS78L05RTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AS78L05RTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AS78L05RTR-G1?
AS78L05RTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AS78L05RTR-G1 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 AS78L05RTR-G1?
For technical support, including AS78L05RTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AS78L05RTR-G1 requirements.
6.How does Aetrix verify that AS78L05RTR-G1 is sourced from the original manufacturer or authorized distributors?
All AS78L05RTR-G1 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 AS78L05RTR-G1 meets industry standards.
7.What is the process for return or replacement of AS78L05RTR-G1?
All AS78L05RTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AS78L05RTR-G1, 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 AS78L05RTR-G1 part is unused and in its original packaging.
Return procedure for AS78L05RTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AS78L05RTR-G1 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
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.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
