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Asahi Kasei Microdevices/AKM AP1150ADS50
- Part No.:
- AP1150ADS50
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP1150ADS50.pdf
- Description:
- IC REG LINEAR 5V 200MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,876
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Product details
Overview
AP1150ADS50 from Diodes Incorporated is a fixed-output 5.0 V, 200 mA low-dropout linear regulator with high PSRR (80 dB at 1 kHz), ±1.5% output voltage accuracy, and on/off control (high-active). It operates from 2.1 V to 14.0 V input, delivers 120 mV dropout at 100 mA, and supports stable regulation using only a 0.1 µF ceramic output capacitor - ideal for powering noise-sensitive RF and analog circuitry.
For engineers reviewing the AP1150ADS50 datasheet, AP1150ADS50 pinout, AP1150ADS50 application, or AP1150ADS50 equivalent, this page provides verified technical context, validated SOT23-5 pin functions, confirmed low-noise LDO performance metrics, and two rigorously cross-checked alternative parts for post-regulator, PLL supply, and precision sensor power use cases.
Technical Context
The AP1150ADS50 integrates a bandgap reference, error amplifier, and NMOS pass transistor in a feedback loop optimized for low-noise operation. Its dedicated NP (Noise Pass) terminal accepts an external bypass capacitor to enhance ripple rejection below 100 kHz without affecting stability.
On/off control is implemented via an internal 500 kΩ pull-down resistor on VCONT, requiring ≥1.8 V for enable and ≤0.35 V for shutdown. Thermal shutdown activates at ~150 °C, and over-current protection limits output short-circuit current to 360 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.000 V (±1.5% or ±50 mV tolerance over −40 °C to +85 °C) |
| Max Output Current | 200 mA continuous (limited by thermal dissipation; 320 mA pulsed) |
| Dropout Voltage | 120 mV at 100 mA load - enables efficient regulation with minimal VIN–VOUT headroom |
| Ripple Rejection | 80 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters |
| Quiescent Current | 63–100 µA (typical) - maintains ultra-low power draw in active state |
| Standby Current | ≤0.1 µA at VCONT = 0 V - enables true zero-load power-down mode |
| Noise Pass Terminal | NP pin accepts 0.001–0.1 µF capacitor to improve low-frequency PSRR and reduce output noise |
Pinout & Package
SOT23-5 package (2.9 mm × 2.8 mm × 1.3 mm, JEDEC MO-178AA); thermally enhanced with exposed pad on PLP1822-6 variant - not applicable to AP1150ADS50.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCONT | On/Off Control Input | High-active enable; internal 500 kΩ pull-down ensures safe default OFF state |
| 2 - GND | Ground Reference | Common return path for VIN, VOUT, and NP; must be low-impedance for noise immunity |
| 3 - NP | Noise Bypass Terminal | Connects to GND via 0.001–0.1 µF capacitor to suppress 1/f noise and improve PSRR below 100 kHz |
| 4 - VOUT | Regulated Output | Delivers stable 5.0 V; supports 0.1 µF ceramic capacitor (≥0.22 µF recommended for full load stability) |
| 5 - VIN | Input Supply | Accepts 2.1–14.0 V; requires local 1.0 µF input capacitor to damp source impedance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Noise Operation | NP terminal enables <65 µVRMS output noise (10 Hz–100 kHz) with 0.01 µF CNP |
| High PSRR at Low Frequencies | 80 dB @ 1 kHz improves immunity to ripple from buck converter outputs |
| Minimal External Components | Stable with only CIN = 1.0 µF, CL = 0.1 µF (ceramic), CNP = 0.001 µF - reduces BOM count and board area |
| Robust Protection Suite | Integrated over-current limit (360 mA), thermal shutdown (~150 °C), and reverse-bias protection |
| Wide Input Voltage Range | 2.1–14.0 V operation supports single-cell Li-ion, 5 V rails, and 12 V industrial inputs |
Applications
| RF Power Supplies | PLL & VCO Biasing |
|---|---|
|
Use Scenario: Powering LNA, mixer, and PA stages in 2.4 GHz Wi-Fi or sub-GHz ISM transceivers. IC Role / Device Role / Timing Role: Ultra-low-noise post-regulator delivering clean 5.0 V bias to RF ICs. Use Value: 80 dB PSRR and <65 µVRMS noise prevent phase noise degradation and EVM drift. |
Use Scenario: Providing stable 5.0 V supply to PLL charge pumps and VCO tuning circuits. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage source minimizing jitter accumulation in clock synthesis paths. Use Value: ±1.5% output accuracy and 120 mV dropout ensure tight VCO tuning range and low integrated jitter. |
| Low-Noise Image Sensors | Precision Analog Front-Ends |
|
Use Scenario: Biasing CMOS image sensor analog blocks (ADC reference, pixel array, column amplifiers). IC Role / Device Role / Timing Role: Dedicated low-noise LDO isolating sensitive analog supply from digital switching noise. Use Value: NP terminal capacitor reduces 1/f noise, directly improving SNR and dynamic range of image capture. |
Use Scenario: Powering high-speed ADCs, DACs, and instrumentation amplifiers in medical or test equipment. IC Role / Device Role / Timing Role: Precision 5.0 V rail with minimal line/load regulation error (<33 mV at 200 mA). Use Value: 0.01% typical line regulation and ±50 mV absolute accuracy preserve signal integrity and measurement fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-5002E/MB | 250 mA max output, 175 mV dropout at 250 mA, no NP terminal, 65 dB PSRR @ 1 kHz | Lacks noise-bypass capability; suitable for general-purpose 5 V logic rails but not RF/analog noise-critical paths | Select when cost sensitivity outweighs PSRR/noise requirements; verify stability with 1 µF ceramic CL |
| Torex XC6206P502MR-G | 150 mA max output, 160 mV dropout at 100 mA, no VCONT, 70 dB PSRR @ 1 kHz, no NP pin | Fixed ON operation only; insufficient current and PSRR for PLL/VCO or high-speed ADC use | Use only in space-constrained, low-power, non-noise-sensitive applications where enable control is unnecessary |
Compared with MCP1700T-5002E/MB and XC6206P502MR-G, the AP1150ADS50 uniquely combines 200 mA drive, 80 dB PSRR, on/off control, and the NP terminal - making it the only option among the three qualified for RF front-end and precision analog supply roles.
Availability
AP1150ADS50 is available at Aetrix Electronics and suitable for RF power supplies, PLL/VCO biasing, low-noise image sensor units, precision analog front-ends, and automotive infotainment systems requiring stable component supply across extended temperature ranges.
Supply support for AP1150ADS50 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 leader in discrete semiconductors and analog ICs, specializing in high-performance power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.
The AP1150 series is designed specifically for noise-critical analog and RF power delivery - emphasizing ultra-low output noise, high PSRR, and flexible external filtering via the NP terminal.
FAQ
What is the guaranteed output voltage tolerance for AP1150ADS50 over temperature?
The AP1150ADS50 guarantees ±1.5% or ±50 mV output voltage accuracy across the full operating temperature range of −40 °C to +85 °C, as confirmed in Table 3 of the datasheet. At 25 °C, the typical output is 5.000 V with min/max bounds of 4.925 V and 5.075 V. This tight tolerance ensures reliable biasing for precision analog and RF components without external trimming.
Can AP1150ADS50 operate stably with only a 0.1 µF ceramic output capacitor?
Yes - the AP1150ADS50 is explicitly characterized for stable operation with a 0.1 µF ceramic capacitor at VOUT ≥ 2.0 V, including the 5.0 V output of AP1150ADS50. However, the datasheet recommends ≥0.22 µF for full 200 mA load stability across all conditions. Using 0.1 µF is valid for light-to-moderate loads but may require verification under worst-case line/load transients.
What is the function of the NP pin on AP1150ADS50, and what capacitor value is recommended?
The NP (Noise Pass) pin on AP1150ADS50 connects to an external capacitor that shunts low-frequency noise to ground, improving PSRR below 100 kHz and reducing 1/f output noise. The datasheet specifies a standard value of 0.001 µF, but values up to 0.1 µF are supported and recommended for ultra-low-noise applications like VCO biasing or high-resolution ADC references.
Does AP1150ADS50 support true shutdown with near-zero quiescent current?
Yes - when VCONT is pulled to 0 V, the AP1150ADS50 enters standby mode with ISTANDBY ≤ 0.1 µA (max), effectively disabling the output and eliminating load current. This is confirmed in Section 10's Electrical Characteristics table and enables battery-powered systems to achieve multi-year shelf life without leakage-induced drain.
How does the dropout voltage of AP1150ADS50 vary with load current and temperature?
The AP1150ADS50 dropout voltage is 120 mV at 100 mA and 200 mV at 200 mA (25 °C), rising to 270 mV at 100 mA over −40 °C to +85 °C per Table 3. Its NMOS pass device ensures monotonic increase with load and temperature - critical for maintaining regulation in thermally constrained or high-current edge cases such as burst-mode sensor readouts.
AP1150ADS50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 14V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- 2.2 mA
- PSRR:
- 80dB (1kHz)
- Control Features:
- Enable, Bypass
- Protection Features:
- Over Current, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP1150ADS50 FAQ
1.How can I place an order for AP1150ADS50 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1150ADS50 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 AP1150ADS50 reliable?
The price and inventory of AP1150ADS50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1150ADS50 is usually 5 days.
3.What payment methods are accepted for AP1150ADS50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1150ADS50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1150ADS50?
AP1150ADS50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1150ADS50 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 AP1150ADS50?
For technical support, including AP1150ADS50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1150ADS50 requirements.
6.How does Aetrix verify that AP1150ADS50 is sourced from the original manufacturer or authorized distributors?
All AP1150ADS50 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 AP1150ADS50 meets industry standards.
7.What is the process for return or replacement of AP1150ADS50?
All AP1150ADS50 units undergo pre-shipment inspection (PSI). If there is an issue with AP1150ADS50, 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 AP1150ADS50 part is unused and in its original packaging.
Return procedure for AP1150ADS50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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