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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Diodes Incorporated AP1119Y90L-13

Name: AP1119Y90L-13
Brand: Diodes Incorporated
SKU: AP1119Y90L-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP1119Y90L-13

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SOT-89-5/6

Datasheet:: AP1119Y90L-13.pdf

Description:: IC REG LINEAR 9V 500MA SOT89-5

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Inventory:3,951

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Product details

Overview

AP1119Y90L-13 from Anachip Corp. is a 0.5A positive low-dropout fixed-output linear regulator with TTL/CMOS-compatible enable input, delivering a stable 9.0V output, 1.3V max dropout at full load, and integrated thermal shutdown. It operates with input voltages up to 18V and is packaged in SOT89-5L for compact board space in low-voltage IC supply applications such as VGA cards and PC peripherals.

For engineers reviewing the AP1119Y90L-13 datasheet, AP1119Y90L-13 pinout, AP1119Y90L-13 application, or AP1119Y90L-13 equivalent, key selection considerations include dropout voltage under 0.5A load, EN logic polarity (low-enable), thermal resistance (θ_JA = 300°C/W), output accuracy (±2% over temperature), and minimum load requirement (5–10mA).

Technical Context

The AP1119Y90L-13 implements a PNP-based LDO architecture with internal current limiting and thermal foldback, enabling stable regulation even during transient load steps. Its enable pin features an internal ~100kΩ pull-down resistor, supporting direct TTL-level control without external biasing.

Designed for fixed-output operation only, it requires ≥10µF output capacitance (tantalum or ceramic) for stability and achieves 60–70dB ripple rejection at 120Hz. Dropout is guaranteed ≤1.3V at I_OUT = 0.5A and ΔV_OUT = 0.1×V_OUT, with line regulation of 0.2% and load regulation of 70–90mV across its 9.0V output range.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 9.0V ±2% (measured at 10mA, 25°C; ensures compatibility with 9V logic rails and analog subsystems)
Max Output Current	0.5A continuous (supports mid-power digital ICs and interface circuits without external pass devices)
Dropout Voltage	1.3V max at 0.5A (enables operation from 10.5V–18V input, critical for legacy 12V rail derating)
Enable Logic	Active-low, TTL/CMOS compatible with internal 100kΩ pull-down (simplifies power sequencing without external resistors)
Ripple Rejection	60–70dB at 120Hz (suppresses switching noise from upstream DC/DC converters feeding the LDO)
Thermal Resistance	θ_JA = 300°C/W (SOT89-5L, no heatsink; limits usable power dissipation to ~0.5W at 70°C ambient)
Minimum Load Current	5–10mA (prevents regulation loss during light-load standby modes; requires intentional bleed if system draws <5mA)

Pinout & Package

SOT89-5L package with exposed tab electrically connected to V_OUT; 5-pin configuration optimized for thermal performance and PCB layout simplicity in space-constrained designs.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Ground reference for regulator feedback and internal circuitry; must be low-impedance connection to minimize noise coupling
2	V_IN	Input supply pin; requires ≥1.3V headroom above V_OUT and local bulk capacitance (≥100µF) to sustain load transients
3	V_OUT	Regulated 9.0V output; tab is internally connected-must be soldered to copper pour for thermal management
4	EN	Enable input; logic low (≤0.8V) enables output, logic high (≥2.0V) disables; internal pull-down eliminates floating risk
5	NC	No-connect terminal; electrically isolated-must remain unconnected per datasheet to avoid malfunction

Key Features

Feature	Design Value
Fast transient response	Sub-100µs recovery from 50–500mA load steps, minimizing undershoot on sensitive 9V analog supplies
Built-in thermal shutdown	Activates at T_J > 150°C with automatic hysteresis, preventing permanent damage during sustained overload
Output current limiting	Guaranteed 0.6A foldback limit at 5V differential, protecting downstream circuitry during short-circuit events
Good noise rejection	60–70dB PSRR at 120Hz enables clean 9V supply for audio amplifiers and ADC references without extra filtering

Applications

VGA Graphics Card Power

PC Peripheral Interface

Use Scenario: Supplies 9V bias to analog video DACs and sync circuitry on legacy VGA add-in cards.

IC Role / Device Role / Timing Role: Primary 9V LDO providing low-noise, well-regulated analog supply independent of main 12V rail fluctuations.

Use Value: Maintains <±2% output accuracy and <90mV load regulation across 0–500mA, preserving color fidelity and timing stability.

Use Scenario: Powers USB hub controller logic and level-shifting circuitry in desktop peripheral enclosures.

IC Role / Device Role / Timing Role: Fixed 9V regulator with enable control for selective power gating of non-essential submodules.

Use Value: Enables zero-quiescent-current shutdown via EN pin, reducing system standby power by >15mW per port.

CD-ROM Drive Motor Control

Industrial Sensor Signal Conditioning

Use Scenario: Provides regulated 9V to motor driver ICs and laser diode bias circuits in optical disc drives.

IC Role / Device Role / Timing Role: High-reliability LDO with thermal foldback, sustaining intermittent 0.4A peak loads during spin-up.

Use Value: 1.3V dropout allows use of 12V supply with margin, while built-in current limit prevents latch-up during mechanical stall.

Use Scenario: Powers precision op-amps and bridge sensor excitation circuits in factory-floor instrumentation.

IC Role / Device Role / Timing Role: Low-drift 9V reference source with <0.5% temperature coefficient over –25°C to +125°C.

Use Value: Delivers <±2% total output variation across full industrial temperature range, eliminating need for post-regulation trimming.

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
MIC29501-9.0WT	Higher I_OUT (5A), lower dropout (0.4V typ.), TO-220 package	Requires heatsink; unsuitable for SOT89 footprint-constrained layouts	Choose when >0.5A load or <1V dropout is required; not drop-in compatible
LP2951ACM-9.0/NOPB	Adjustable/fixed option, 100mA max, SOIC-8 package, no EN pin	Lacks enable function and thermal shutdown; limited to low-power signal chains	Choose only for cost-sensitive, low-current (<100mA), non-sequenced applications

Compared with MIC29501-9.0WT and LP2951ACM-9.0/NOPB, the AP1119Y90L-13 uniquely balances 0.5A capability, SOT89-5L footprint, active-low EN, and thermal protection-making it optimal for mid-power embedded systems where board area and sequencing control are critical.

Availability

AP1119Y90L-13 is available at Aetrix Electronics and suitable for PC peripheral power, VGA card analog supply, CD-ROM drive bias, and industrial sensor conditioning requiring stable component supply and long-term sourcing continuity.

Supply support for AP1119Y90L-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 specializing in analog and mixed-signal power management ICs, with design focus on cost-effective, high-reliability solutions for consumer and industrial markets.

The AP1119 series belongs to Anachip's fixed-output LDO product line, engineered specifically for low-voltage IC supply in legacy computing and optical storage platforms where predictable thermal behavior and simple enable control are prioritized over ultra-low quiescent current.

FAQ

Is AP1119Y90L-13 lead-free and RoHS-compliant?

Yes. The "L" suffix in AP1119Y90L-13 explicitly denotes lead-free packaging per JEDEC J-STD-609, confirmed in Anachip's marking information table and package specification sheet. All solderable surfaces meet RoHS Directive 2011/65/EU requirements without exemptions.

What is the recommended output capacitor for stability?

Anachip specifies a minimum 10µF tantalum or ceramic capacitor directly at the V_OUT pin, with ESR between 0.1Ω and 1Ω. For best transient response and ripple suppression, a 100µF low-ESR tantalum capacitor (as shown in the Typical Circuit) is recommended, placed within 5mm of the device.

Can AP1119Y90L-13 be used with input voltage below 10.5V?

No. Per Absolute Maximum Ratings and Electrical Characteristics, the AP1119-9.0 variant requires V_IN ≥ 10.5V to maintain regulation at full load (0.5A). At lower inputs, dropout exceeds specification and output voltage collapses-minimum functional input is 10.5V under worst-case conditions.

Why does the datasheet state "Not Recommended for New Design"?

This designation reflects Anachip's strategic shift toward newer LDO families (e.g., AP1117 derivatives) with improved PSRR, lower IQ, and enhanced thermal performance. AP1119Y90L-13 remains fully qualified and supported for existing designs and legacy system refreshes, but lacks roadmap extension beyond current production cycles.

AP1119Y90L-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SOT-89-5/6

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):: 1.3V @ 500mA

Current - Output:: 500mA

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:: SOT-89-5

AP1119Y90L-13 FAQ

1.How can I place an order for AP1119Y90L-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP1119Y90L-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 AP1119Y90L-13 reliable?

The price and inventory of AP1119Y90L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1119Y90L-13 is usually 5 days.

3.What payment methods are accepted for AP1119Y90L-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1119Y90L-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP1119Y90L-13?

AP1119Y90L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP1119Y90L-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 AP1119Y90L-13?

For technical support, including AP1119Y90L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1119Y90L-13 requirements.

6.How does Aetrix verify that AP1119Y90L-13 is sourced from the original manufacturer or authorized distributors?

All AP1119Y90L-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 AP1119Y90L-13 meets industry standards.

7.What is the process for return or replacement of AP1119Y90L-13?

All AP1119Y90L-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1119Y90L-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 AP1119Y90L-13 part is unused and in its original packaging.

Return procedure for AP1119Y90L-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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