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Diodes Incorporated AP130-35RG-7
- Part No.:
- AP130-35RG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP130-35RG-7.pdf
- Description:
- IC REG LINEAR 3.5V 300MA SC59R
- Quantity:
- Payment:
- Shipping:
Inventory:5,115
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Product details
Overview
AP130-35RG-7 from Diodes Incorporated is a fixed 3.5V, 300mA low-dropout linear regulator in SC59R package with 400mV dropout at full load, ±2% output voltage accuracy, and 50µA quiescent current. It integrates PMOS pass element, thermal shutdown, and current-limit protection for battery-powered portable electronics requiring stable low-noise supply under light-to-full load.
For engineers reviewing the AP130-35RG-7 datasheet, AP130-35RG-7 pinout, AP130-35RG-7 application, or AP130-35RG-7 equivalent, key selection criteria include dropout performance at 300mA, SC59R thermal resistance (250°C/W), 3.5V output tolerance, fast transient response, and compatibility with 1µF input / 10µF output capacitor network.
Technical Context
The AP130-35RG-7 uses a PMOS pass transistor with 1.5Ω on-resistance, eliminating base drive current and enabling ultra-low quiescent current across load range. Its bandgap reference and error amplifier deliver tight DC regulation and high PSRR (58dB at 100Hz) without external compensation.
Internal current fold-back and thermal shutdown activate under overload or junction temperature >125°C. The device operates from 2.7V to 5.5V input and maintains regulation down to 3.9V input at 300mA load for 3.5V output - confirming true LDO behavior with <400mV headroom requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.5V ±2% - ensures stable core voltage for 3.3V-tolerant logic with 50mV margin. |
| Max Output Current | 300mA continuous - supports single-rail microcontroller or RF transceiver power domains. |
| Dropout Voltage | 400mV typ. at 300mA - enables operation from single Li-ion cell (3.0–4.2V) down to 3.9V input. |
| Quiescent Current | 50µA typ. at zero load - extends battery life in always-on sensor nodes or standby modes. |
| PSRR | 58dB at 100Hz - suppresses switching noise from upstream DC/DC converters feeding the LDO. |
| Line Regulation | 0.1–0.3%/V - maintains output stability despite input sag during pulsed loads. |
| Thermal Resistance θJA | 250°C/W (SC59R) - requires minimal PCB copper area for thermal management in space-constrained layouts. |
Pinout & Package
AP130-35RG-7 is packaged in SC59R - 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 mounting with recommended 1×MRP layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for error amplifier and thermal shutdown circuitry; must connect to low-impedance system ground plane. |
| 2 | OUT | Regulated 3.5V output; requires ≥10µF ceramic capacitor to ground for stability and transient response. |
| 3 | IN | Input supply (2.7–5.5V); needs ≥1µF bypass capacitor near pin to limit input impedance at high frequency. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS Pass Element | RON = 1.5Ω with zero gate drive current - eliminates base current loss, enabling 50µA IQ independent of load. |
| Current Limit + Fold-Back | 350–450mA limit with fold-back below 1.05V output - protects against short-circuit while limiting power dissipation. |
| Thermal Shutdown | Activates at TJ >125°C with hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
| Green Molding Compound | Halogen-free (no Br/Sb) - meets IPC-4101D/21 requirements for environmentally compliant industrial designs. |
| Fast Transient Response | Stabilizes within 10µs after 100mA step load - maintains voltage integrity for burst-mode wireless transceivers. |
Applications
| Wireless Sensor Node | USB Peripheral Power |
|---|---|
Use Scenario: Battery-powered Zigbee/Bluetooth LE sensor node operating 24/7 with periodic radio bursts. IC Role / Device Role / Timing Role: Primary 3.5V supply for MCU and RF IC; regulates voltage during 300mA TX current spikes. Use Value: 400mV dropout allows full 300mA delivery from 3.9V Li-ion minimum; 50µA IQ extends shelf life beyond 5 years. |
Use Scenario: Self-powered USB audio interface drawing up to 250mA from host VBUS. IC Role / Device Role / Timing Role: Post-regulator cleaning noisy 5V USB supply to clean 3.5V rail for ADC and codec. Use Value: 58dB PSRR at 100Hz rejects USB switcher ripple; ±2% accuracy ensures ADC reference stability. |
| Industrial Control I/O Module | Optical Drive Logic Supply |
Use Scenario: DIN-rail mounted PLC I/O module with isolated 3.3V logic powered from 5V backplane. IC Role / Device Role / Timing Role: Local 3.5V regulator for FPGA configuration and level-shifting buffers. Use Value: -40°C to +85°C ambient rating ensures reliability in uncontrolled cabinets; SC59R footprint saves board space. |
Use Scenario: CD/DVD-ROM drive requiring stable 3.5V for servo control and laser driver biasing. IC Role / Device Role / Timing Role: Dedicated LDO for analog front-end circuits sensitive to supply noise. Use Value: Good load regulation (±30mV over 1–300mA) prevents servo drift during disc spin-up current surges. |
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 |
|---|---|---|---|
| MCP1700T-3502E/TT | 250mA max output, 175mV dropout at 250mA, 1.8µA IQ - lower current, lower dropout, much lower IQ. | Suitable only for sub-250mA loads; insufficient for 300mA peak demands in RF modules. | Select when ultra-low IQ dominates over output current capability. |
| TPS7333QDBVRQ1 | 300mA, 3.3V fixed, 350mV dropout, automotive-grade (-40°C to +125°C), 220µA IQ. | Requires 3.3V output; higher IQ reduces battery runtime; AEC-Q100 qualified for automotive use. | Select for automotive infotainment or ADAS modules needing 3.3V and qualification. |
Compared with MCP1700T-3502E/TT and TPS7333QDBVRQ1, AP130-35RG-7 uniquely balances 300mA capability, 400mV dropout, and 50µA IQ in a cost-optimized industrial SC59R package - making it optimal for consumer and industrial portable devices where 3.5V is specified and thermal budget is constrained.
Availability
AP130-35RG-7 is available at Aetrix Electronics and suitable for battery-powered devices, PC peripherals, and wireless communication modules requiring stable component supply with consistent parametric performance and long-term manufacturability.
Supply support for AP130-35RG-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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP130 series belongs to Diodes' precision LDO portfolio designed specifically for space-constrained, battery-sensitive applications demanding low dropout, low IQ, and robust fault protection - with emphasis on SC59R and SOT23 footprints.
FAQ
What is the minimum input voltage required for AP130-35RG-7 to maintain regulation at 300mA?
The minimum input voltage is 3.9V: calculated as 3.5V output + 400mV typical dropout. At 300mA load and 25°C, regulation is maintained down to this headroom. Below 3.9V, output voltage drops linearly with input - confirmed by Figure 4 (Dropout vs. Load) in DS31027 Rev. 8-2.
Can AP130-35RG-7 be used with ceramic output capacitors?
Yes - the datasheet specifies stability with ≥10µF ceramic output capacitor (X5R/X7R). No ESR requirement is imposed, unlike older LDOs; the internal compensation is optimized for low-ESR ceramics, simplifying layout and reducing BOM count.
Does AP130-35RG-7 require an input capacitor, and if so, what value?
Yes - a minimum 1µF ceramic capacitor is required at the IN pin, placed as close as possible to the device. This limits high-frequency input impedance and prevents oscillation during fast load transients, as validated in the Typical Application Circuit on page 2 of DS31027.
Is AP130-35RG-7 compatible with lead-free reflow soldering profiles?
Yes - it is RoHS-compliant and rated for standard lead-free reflow (J-STD-020D), with peak temperature up to 260°C. The "G" suffix explicitly denotes green (halogen-free) molding compound and lead-free finish, verified per Diodes' AP02007 packaging specification.
AP130-35RG-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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.5V
- 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
AP130-35RG-7 FAQ
1.How can I place an order for AP130-35RG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP130-35RG-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 AP130-35RG-7 reliable?
The price and inventory of AP130-35RG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-35RG-7 is usually 5 days.
3.What payment methods are accepted for AP130-35RG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-35RG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP130-35RG-7?
AP130-35RG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP130-35RG-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 AP130-35RG-7?
For technical support, including AP130-35RG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-35RG-7 requirements.
6.How does Aetrix verify that AP130-35RG-7 is sourced from the original manufacturer or authorized distributors?
All AP130-35RG-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 AP130-35RG-7 meets industry standards.
7.What is the process for return or replacement of AP130-35RG-7?
All AP130-35RG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-35RG-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 AP130-35RG-7 part is unused and in its original packaging.
Return procedure for AP130-35RG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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