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Diodes Incorporated AP1118D90L-13
- Part No.:
- AP1118D90L-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-6, DPAK (5 Leads + Tab)
- Datasheet:
-
AP1118D90L-13.pdf
- Description:
- IC REG LINEAR 9V 1A TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
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Product details
Overview
AP1118D90L-13 from Anachip Corp. is a 1A positive low-dropout linear regulator with fixed 9.0V output, TTL/CMOS-compatible enable function, ≤1.4V dropout at full load, and thermal shutdown protection. It delivers stable voltage for low-voltage ICs in PC peripherals and communication modules operating from up to 18V input.
For engineers reviewing the AP1118D90L-13 datasheet, AP1118D90L-13 pinout, AP1118D90L-13 application, or AP1118D90L-13 equivalent, key selection criteria include dropout voltage under 1A load, EN logic polarity, thermal resistance (102°C/W for TO252-5L), output accuracy (±2%), and lead-free SOP-8L package compatibility with automated assembly.
Technical Context
The AP1118D90L-13 uses internal PNP pass transistor architecture with built-in current limiting and thermal shutdown circuitry. Its enable pin features an internal ~100kΩ pull-down resistor, ensuring default-on operation when left floating.
Designed for fixed-output regulation only, it requires ≥10µF output capacitance for stability and supports input voltages from (VOUT + 1.3V) up to 18V. Load regulation is specified at 70–90mV across 0–1A output current at 12V input differential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 9.0V ±2% (8.82–9.18V) at 10mA, 25°C - ensures stable supply for 9V logic or analog subsystems |
| Dropout Voltage | ≤1.4V at 1A load - enables regulation from as low as 10.4V input, critical for battery-backed or wide-input systems |
| Output Current | 1A maximum continuous - sufficient for powering multiple ICs on a peripheral board without external boost |
| Enable Input Logic | TTL/CMOS compatible: <0.8V = ON, >1.6V = OFF - interoperable with standard microcontroller GPIOs |
| Ripple Rejection | 60–70dB at 120Hz - suppresses switching noise from upstream DC/DC converters feeding the LDO |
| Thermal Resistance θJA | 102°C/W (TO252-5L) - defines max power dissipation (≈1.5W at 50°C ambient) before thermal shutdown triggers |
Pinout & Package
AP1118D90L-13 is packaged in lead-free TO252-5L (DPAK) surface-mount format with exposed thermal pad. Pin 1 = Vin, Pin 2 = GND, Pin 3 = EN, Pin 4 = Vout (tab), Pin 5 = Vout (pin). Tab is electrically connected to Vout and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Vin) | Input supply connection | Must be ≥10.4V for regulation; requires bulk capacitor to prevent sag during 1A transients |
| Pin 2 (GND) | Ground reference | Low-impedance return path for all internal circuits; must connect directly to power plane |
| Pin 3 (EN) | Enable control input | Open or pulled low = output enabled; pulled high ≥1.6V = output disabled (high-Z) |
| Pins 4 & 5 (Vout) | Regulated output terminals | Both pins and metal tab deliver 9.0V; tab provides thermal conduction and current path |
Key Features
| Feature | Design Value |
|---|---|
| Fast transient response | Load step recovery within 200µs (100mA→1A), minimizing voltage dip on digital logic rails |
| Built-in thermal shutdown | Activates at ~150°C junction temperature, latching off until cool-down - prevents permanent damage during overload |
| Output current limiting | Guaranteed ≥1.1A foldback limit - protects against short-circuit while maintaining safe power dissipation |
| Good noise rejection | 70dB ripple suppression at 120Hz - maintains clean 9V supply for sensitive analog front-ends or PLLs |
Applications
| PC Peripheral Power | Communication Module Supply |
|---|---|
Use Scenario: Powering USB hub controller, SATA bridge IC, or PCIe switch on add-in cards. IC Role / Device Role / Timing Role: Primary 9V bias rail for level-shifting circuitry and interface buffers. Use Value: Low dropout allows use of 12V system rail without inefficient pre-regulation; EN pin enables hot-plug sequencing. |
Use Scenario: Supplying RS-232 transceivers, Ethernet PHYs, or modem line drivers in embedded gateways. IC Role / Device Role / Timing Role: Stable 9V source for analog signal conditioning and line-driver biasing. Use Value: High PSRR rejects noise from switching power supplies sharing the same 12V input bus. |
| VGA Card Voltage Reference | CD-ROM Drive Motor Control |
Use Scenario: Generating reference voltage for DACs and gamma correction circuits in legacy VGA graphics cards. IC Role / Device Role / Timing Role: Precision 9V reference for analog video signal scaling and amplification. Use Value: ±2% output tolerance ensures consistent color fidelity; thermal shutdown prevents overheating in confined PCB areas. |
Use Scenario: Biasing laser diode driver and spindle motor control ICs in optical disc drives. IC Role / Device Role / Timing Role: Dedicated 9V rail isolating analog motor control from noisy digital logic domains. Use Value: Fast transient response accommodates sudden current surges during disc spin-up without brownout. |
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 |
|---|---|---|---|
| MIC29302WU-9.0 | Higher dropout (0.4V typ. @ 1A), lower quiescent current (15mA), TO263-5 package | Better efficiency at light loads; less suitable for 10.4V min input due to higher dropout margin | Select if input headroom >10.8V and low IQ is critical |
| LD1085V90 | 1.5A rating, 1.3V dropout (max), TO220-3 package, no enable pin | Lacks EN control and thermal foldback; requires external shutdown circuitry for sequencing | Select if enable function is unnecessary and higher current headroom is needed |
Compared with MIC29302WU-9.0 and LD1085V90, AP1118D90L-13 uniquely combines TTL-compatible enable, 102°C/W thermal resistance in DPAK, and guaranteed ≤1.4V dropout - making it optimal for space-constrained, sequenced 9V rail designs where input voltage may dip near 10.4V.
Availability
AP1118D90L-13 is available at Aetrix Electronics and suitable for PC peripheral power, communication module supply, and VGA card voltage reference requiring stable component supply with lead-free compliance and long-term industrial availability.
Supply support for AP1118D90L-13 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
Anachip Corp. is a Taiwan-based semiconductor company founded in 1992, specializing in analog and mixed-signal power management ICs for consumer and industrial markets.
The AP1118 product line delivers cost-optimized, fixed-output LDO regulators targeting PC peripherals, optical storage, and communication interfaces where reliability, thermal robustness, and enable-controlled sequencing are essential.
FAQ
What is the minimum input voltage required for AP1118D90L-13 to regulate at 9.0V output?
The datasheet specifies that Vin must be at least 1.3V higher than Vout for proper regulation. For the 9.0V output version, this means Vin ≥ 10.3V. At full 1A load, dropout is guaranteed ≤1.4V, so 10.4V is the practical minimum to ensure regulation across temperature and tolerance.
Can AP1118D90L-13 be used without an external output capacitor?
No. The datasheet mandates a minimum 10µF capacitor from Vout to GND for stability. Omitting it risks oscillation or poor transient response. Tantalum or aluminum electrolytic capacitors are recommended; ceramic types require series ESR ≥30mΩ to avoid instability.
Is the metal tab on the TO252-5L package electrically isolated?
No. The tab is internally connected to the Vout pin and serves as both the primary output terminal and thermal conduction path. It must be soldered to a copper pour tied to the 9V net and not shorted to ground or other potentials.
Does the EN pin have internal pull-up or pull-down resistance?
The EN pin has an internal ~100kΩ pull-down resistor. When left unconnected (open), the pin defaults to logic low, enabling the output. A logic high (>1.6V) is required to disable the regulator; no external pull-up is needed for default-on operation.
AP1118D90L-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-6, DPAK (5 Leads + Tab)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-5
AP1118D90L-13 FAQ
1.How can I place an order for AP1118D90L-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1118D90L-13 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 AP1118D90L-13 reliable?
The price and inventory of AP1118D90L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1118D90L-13 is usually 5 days.
3.What payment methods are accepted for AP1118D90L-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1118D90L-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1118D90L-13?
AP1118D90L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1118D90L-13 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 AP1118D90L-13?
For technical support, including AP1118D90L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1118D90L-13 requirements.
6.How does Aetrix verify that AP1118D90L-13 is sourced from the original manufacturer or authorized distributors?
All AP1118D90L-13 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 AP1118D90L-13 meets industry standards.
7.What is the process for return or replacement of AP1118D90L-13?
All AP1118D90L-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1118D90L-13, 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 AP1118D90L-13 part is unused and in its original packaging.
Return procedure for AP1118D90L-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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