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Diodes Incorporated AP130-18RL-7
- Part No.:
- AP130-18RL-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP130-18RL-7.pdf
- Description:
- IC REG LINEAR 1.8V 300MA SC59
- Quantity:
- Payment:
- Shipping:
Inventory:1,795
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Product details
Overview
AP130-18RL-7 from Diodes Incorporated is a fixed 1.8V, 300mA low-dropout linear regulator in SC59R package with 400mV dropout at full load, 50µA quiescent current, and ±2% output voltage accuracy. It integrates PMOS pass element, thermal shutdown, and current-limit protection for battery-powered portable electronics requiring stable low-noise supply.
For engineers reviewing the AP130-18RL-7 datasheet, AP130-18RL-7 pinout, AP130-18RL-7 application, or AP130-18RL-7 equivalent, key selection criteria include dropout performance at 300mA, SC59R footprint compatibility, thermal resistance (θJA = 250°C/W), and guaranteed 1.8V output stability across –40°C to +85°C ambient.
Technical Context
The AP130-18RL-7 uses an internal PMOS pass transistor with 1.5Ω RON, eliminating base drive current and enabling ultra-low quiescent current (50µA typ). Its error amplifier and bandgap reference deliver fast transient response and tight load regulation (±30mV over 1–300mA).
Protection circuitry includes fold-back short-circuit current limiting (150–300mA) and thermal shutdown triggered above +125°C junction temperature. Input voltage range is 2.7V to 5.5V, supporting single-cell Li-ion, Li-polymer, and 3.3V/5V rail regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% - ensures compatible logic-level supply for 1.8V microcontrollers and memory interfaces |
| Max Output Current | 300mA - supports moderate-power peripherals like USB PHYs, sensors, and RF front-ends |
| Dropout Voltage | 400mV @ 300mA - enables operation down to 2.2V input, critical for end-of-battery-life operation |
| Quiescent Current | 50µA typ - minimizes standby power loss in always-on battery systems |
| PSRR | 58dB @ 100Hz - suppresses ripple from noisy switching supplies feeding the LDO input |
| Thermal Resistance θJA | 250°C/W (SC59R) - defines maximum power dissipation (≈360mW) before thermal shutdown at 85°C ambient |
| Line Regulation | 0.1–0.3%/V - maintains output stability despite input rail variation (e.g., Li-ion discharge curve) |
Pinout & Package
AP130-18RL-7 is housed in SC59R package - a lead-free, RoHS-compliant 3-pin SOT-23 variant with reversed pinout (GND–OUT–IN, top view). Thermal pad not present; standard FR-4 PCB layout required per AP02001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for error amplifier and thermal shutdown comparator; must connect to low-impedance ground plane |
| 2 | OUT | Regulated 1.8V output; requires ≥10µF ceramic capacitor to ground for stability and transient response |
| 3 | IN | Input supply (2.7–5.5V); needs local 1µF bypass capacitor near pin to reduce high-frequency noise |
Key Features
| Feature | Design Value |
|---|---|
| PMOS Pass Element | RON = 1.5Ω with zero gate-drive current - eliminates base current loss, enabling true 50µA IQ across load range |
| Fast Transient Response | Stabilizes within <10µs after 100mA step load - prevents brownout in digital core domains during burst activity |
| Short-Circuit Fold-Back | Limits output current to 150–300mA under fault - reduces power dissipation and avoids thermal runaway |
| Green Molding Compound | Halogen-free (no Br/Sb) - meets IPC-4101D and JEDEC J-STD-020 reflow compliance for industrial reliability |
Applications
| Battery-Powered IoT Sensor Node | USB-C Peripheral Power Rail |
|---|---|
Use Scenario: Compact environmental sensor node powered by CR2032 or single-cell Li-ion, operating intermittently with BLE radio bursts. IC Role / Device Role / Timing Role: Primary 1.8V supply for MCU, ADC, and BLE transceiver; regulates down from 3.0–3.6V battery voltage. Use Value: 400mV dropout extends usable battery life by >15% versus higher-dropout regulators; 50µA IQ preserves shelf life. |
Use Scenario: USB-C powered dongle with integrated USB 2.0 interface and LED indicators, drawing up to 250mA peak. IC Role / Device Role / Timing Role: Post-regulator for clean 1.8V I/O supply derived from noisy 5V USB VBUS via buck converter. Use Value: 58dB PSRR at 100Hz attenuates switching ripple from upstream DC/DC, preventing data corruption on USB lines. |
| Industrial PLC Digital I/O Module | Wi-Fi 6 Edge Router Baseband |
Use Scenario: DIN-rail mounted PLC module with isolated 3.3V/1.8V rails for FPGA configuration and level-shifting logic. IC Role / Device Role / Timing Role: Local 1.8V LDO for FPGA I/O banks and level translators; supplied from isolated 3.3V secondary rail. Use Value: ±2% output accuracy ensures reliable signal integrity across –40°C to +85°C industrial temperature range. |
Use Scenario: Low-profile Wi-Fi 6 access point with dual-band RF and baseband SoC requiring tightly regulated 1.8V core supply. IC Role / Device Role / Timing Role: Point-of-load regulator for SoC I/O domain; placed adjacent to BGA package for minimal trace inductance. Use Value: SC59R's compact footprint (2.9×2.8mm) fits dense RF layout; thermal shutdown prevents damage during sustained TX bursts. |
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-1802E/TT | 250mA max output, 175mV dropout @ 250mA, 1.8µA IQ - lower IQ but reduced current capability | Suitable only for sub-250mA loads; insufficient for 300mA peak demands in USB or RF apps | Select if ultra-low standby power dominates over current headroom |
| TPS73118DBVR | 300mA output, 120mV dropout @ 300mA, 400µA IQ - lower dropout but 8× higher quiescent current | Better for high-efficiency mid-load operation; unsuitable for long-duration battery use | Select when input voltage margin is tight (<2.5V) and battery runtime is secondary to regulation precision |
Compared with MCP1700T-1802E/TT and TPS73118DBVR, AP130-18RL-7 uniquely balances 300mA delivery, 400mV dropout, and 50µA IQ - making it optimal for space-constrained, battery-sensitive designs where both peak current and standby efficiency matter.
Availability
AP130-18RL-7 is available at Aetrix Electronics and suitable for battery-powered IoT sensor nodes, USB-C peripheral power rails, and industrial PLC digital I/O modules requiring stable component supply with consistent SC59R packaging and RoHS/Green compliance.
Supply support for AP130-18RL-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 AP130 series targets cost-sensitive, space-constrained portable electronics needing robust, low-IQ LDO regulation - designed specifically for battery longevity and thermal resilience in unheatsinked SC59R/SOT23 footprints.
FAQ
What is the minimum input voltage required for AP130-18RL-7 to maintain regulation at 300mA?
The AP130-18RL-7 requires VIN ≥ VOUT + VDROP = 1.8V + 0.4V = 2.2V to sustain 300mA output. Per datasheet, input voltage must be ≥2.7V for guaranteed operation across temperature and process variation - below that, dropout behavior is not characterized.
Can AP130-18RL-7 be used without an output capacitor?
No. The datasheet mandates a minimum 10µF ceramic capacitor from OUT to GND for stability. Omitting it causes oscillation and output voltage overshoot during load transients, risking downstream logic malfunction or latch-up.
Is AP130-18RL-7 compatible with lead-free reflow profiles?
Yes. AP130-18RL-7 is RoHS-compliant and qualified for standard lead-free reflow (J-STD-020D), with peak temperature up to 260°C. Its SC59R package uses matte-tin plating and green molding compound meeting IPC-4101D halogen-free requirements.
How does thermal shutdown behave under continuous short-circuit condition?
Under sustained short-circuit, AP130-18RL-7 activates thermal shutdown at ~125°C junction temperature, latching off until die cools to ~110°C (typical hysteresis). During this cycle, fold-back current limiting holds power dissipation below destructive levels in SC59R package.
AP130-18RL-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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- -
- PSRR:
- 58dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59R
AP130-18RL-7 FAQ
1.How can I place an order for AP130-18RL-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP130-18RL-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 AP130-18RL-7 reliable?
The price and inventory of AP130-18RL-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-18RL-7 is usually 5 days.
3.What payment methods are accepted for AP130-18RL-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-18RL-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP130-18RL-7?
AP130-18RL-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP130-18RL-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 AP130-18RL-7?
For technical support, including AP130-18RL-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-18RL-7 requirements.
6.How does Aetrix verify that AP130-18RL-7 is sourced from the original manufacturer or authorized distributors?
All AP130-18RL-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 AP130-18RL-7 meets industry standards.
7.What is the process for return or replacement of AP130-18RL-7?
All AP130-18RL-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-18RL-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 AP130-18RL-7 part is unused and in its original packaging.
Return procedure for AP130-18RL-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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