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Diodes Incorporated AP2120Z-3.3TRG1
- Part No.:
- AP2120Z-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
AP2120Z-3.3TRG1.pdf
- Description:
- IC REG LINEAR 3.3V 150MA TO92
- Quantity:
- Payment:
- Shipping:
Inventory:1,337
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Product details
Overview
AP2120Z-3.3TRG1 from Diodes Incorporated is a high-speed, extremely low-noise CMOS-based LDO voltage regulator delivering a fixed 3.3V output with ±2% accuracy, 200mV typical dropout at 100mA, 25µA typical quiescent current, and 65dB typical PSRR at 1kHz - designed for noise-sensitive analog and RF power rails in portable battery-powered systems.
For engineers reviewing the AP2120Z-3.3TRG1 datasheet, AP2120Z-3.3TRG1 pinout, AP2120Z-3.3TRG1 application, or AP2120Z-3.3TRG1 equivalent, key selection criteria include ultra-low RMS noise (30µVrms), compatibility with 1µF ceramic output capacitors, guaranteed 150mA output current, and SOT-23 package thermal performance under 85°C junction operation.
Technical Context
The AP2120Z-3.3TRG1 integrates a precision voltage reference, error amplifier, and resistor network to maintain stable 3.3V regulation across input voltages from 3.8V to 6V. Its CMOS process enables low quiescent current and fast transient response without requiring external compensation.
It features internal current limiting (50mA short-circuit protection), thermal shutdown, and operates over –40°C to +85°C. The device achieves excellent line regulation (4mV typical) and load regulation (12mV typical), supporting clean power delivery in dynamic load environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±2% - ensures reliable logic-level compliance for 3.3V microcontrollers and interface ICs |
| Dropout Voltage | 200mV typical at 100mA - enables operation from 3.5V input while sustaining full rated load |
| Quiescent Current | 25µA typical - minimizes standby power loss in always-on battery applications |
| PSRR | 65dB typical at 1kHz - suppresses switching noise from upstream DC/DC converters |
| RMS Output Noise | 30µVrms (10Hz–100kHz) - preserves signal integrity in ADC reference and RF bias rails |
| Output Current | 150mA guaranteed - supports multiple low-power peripherals on a single rail |
| Input Voltage Range | 3.8V to 6V - compatible with single-cell Li-ion (fully charged) and dual-cell alkaline inputs |
Pinout & Package
SOT-23 (N package), 3-pin surface-mount, moisture sensitivity level 1 per J-STD-020, lead-free and RoHS compliant, 0.009g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground Reference | Low-impedance return path for regulator feedback and output current; must connect to solid ground plane |
| 2 VOUT | Regulated Output | Stable 3.3V supply node; requires ≥1µF ceramic capacitor placed within 3mm for stability |
| 3 VIN | Input Supply | Unregulated input (3.8–6V); requires ≥1µF ceramic decoupling capacitor adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Noise Regulation | 30µVrms output noise enables use in PLL/VCO biasing and high-resolution ADC references |
| Ceramic Capacitor Compatibility | Stable with ≥1µF X5R/X7R ceramics (ESR 0.01–100Ω), eliminating need for costly tantalum or electrolytic caps |
| High PSRR at Audio Frequencies | 65dB rejection at 1kHz allows co-location with noisy digital power stages without filtering |
| Precision Output Accuracy | ±2% tolerance over temperature and load ensures consistent I/O voltage margins for 3.3V logic families |
| Fast Load Transient Response | Minimal output voltage dip during 0→150mA step load - critical for burst-mode wireless transceivers |
Applications
| Mobile Phone Baseband Power | Wireless IoT Sensor Node Core Rail |
|---|---|
Use Scenario: Powering baseband processor core and memory interfaces in LTE/5G handsets with tight noise budgets. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying CPU I/O and DDR termination voltage. Use Value: 30µVrms noise prevents bit errors in high-speed serial links; 200mV dropout extends battery runtime during discharge. |
Use Scenario: Providing regulated 3.3V to BLE/Wi-Fi SoCs and environmental sensors in compact battery-operated nodes. IC Role / Device Role / Timing Role: Standby and active-mode power source enabling sub-10µA deep-sleep current. Use Value: 25µA quiescent current maximizes multi-year battery life; SOT-23 footprint saves PCB area in space-constrained designs. |
| Digital Camera Image Sensor Bias | Industrial Handheld Terminal Logic Rail |
Use Scenario: Delivering ultra-clean bias voltage to CMOS image sensor analog front-end and ADC reference. IC Role / Device Role / Timing Role: Low-noise auxiliary LDO for sensor analog supply, isolated from digital switching noise. Use Value: 65dB PSRR attenuates 1MHz DC/DC ripple; 30µVrms noise preserves SNR in 12-bit+ imaging pipelines. |
Use Scenario: Regulating 3.3V for barcode scanner ASICs, display drivers, and touch controllers in rugged handheld terminals. IC Role / Device Role / Timing Role: Main system rail supporting intermittent high-current pulses during scanning and communication bursts. Use Value: 150mA output capacity handles 100mA peak loads; robust -40°C to +85°C operation ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/TT | 250mV dropout at 250mA; 1.6µA quiescent current; no PSRR spec >10kHz | Better for ultra-low-IQ sleep modes but higher noise (90µVrms) and lower PSRR | Prefer when standby current dominates design; avoid for noise-critical analog rails |
| Torex XC6206P332MR-G | 200mV dropout at 100mA; 1µA IQ; 40dB PSRR at 1kHz; 40µVrms noise | Lower IQ and smaller SOT-23-3 footprint, but higher noise and weaker ripple rejection | Choose for minimal quiescent drain in coin-cell devices; not suitable for RF or precision ADC supplies |
Compared with MCP1700T-3302E/TT and XC6206P332MR-G, the AP2120Z-3.3TRG1 uniquely balances ultra-low noise (30µVrms), high PSRR (65dB), and moderate quiescent current (25µA), making it optimal for mixed-signal systems where both battery life and analog performance matter.
Availability
AP2120Z-3.3TRG1 is available at Aetrix Electronics and suitable for mobile phone baseband power, wireless IoT sensor node core rails, digital camera image sensor bias, and industrial handheld terminal logic rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP2120Z-3.3TRG1 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and quality systems aligned to AEC-Q100 for automotive-grade components.
The AP2120 series belongs to Diodes' high-performance LDO portfolio, engineered specifically for battery-powered portable electronics demanding ultra-low noise, high PSRR, and minimal dropout in space-constrained SOT-23 packages.
FAQ
What is the minimum input voltage required for stable 3.3V output at 100mA load?
The AP2120Z-3.3TRG1 requires a minimum input voltage of 3.5V to maintain regulation at 100mA, based on its 200mV typical dropout voltage (3.3V + 0.2V = 3.5V). Operation below this voltage causes output droop or dropout; the absolute minimum specified VIN is 3.8V per recommended operating conditions for full 150mA capability.
Can AP2120Z-3.3TRG1 be used with a 0.47µF output capacitor?
No - the datasheet specifies a minimum output capacitance of 1µF with ESR between 0.01Ω and 100Ω for stability. Using 0.47µF risks oscillation or poor transient response. Ceramic capacitors of 1µF X5R/X7R in 0603 or 0805 case sizes are validated and recommended.
Does AP2120Z-3.3TRG1 include thermal shutdown protection?
Yes - the device incorporates internal thermal shutdown that activates at +150°C junction temperature (absolute maximum rating). Recovery occurs once die temperature falls below the hysteresis threshold, enabling self-protection during sustained overload or high ambient conditions without external circuitry.
Is AP2120Z-3.3TRG1 qualified for automotive applications?
No - AP2120Z-3.3TRG1 is rated for industrial temperature range (–40°C to +85°C) and is not AEC-Q100 qualified. For automotive use, Diodes offers the AP7361 series (AEC-Q100 Grade 1) or contact their automotive team for PPAP-capable alternatives with IATF 16949 manufacturing.
AP2120Z-3.3TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (1kHz)
- Control Features:
- -
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92
AP2120Z-3.3TRG1 FAQ
1.How can I place an order for AP2120Z-3.3TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2120Z-3.3TRG1 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 AP2120Z-3.3TRG1 reliable?
The price and inventory of AP2120Z-3.3TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2120Z-3.3TRG1 is usually 5 days.
3.What payment methods are accepted for AP2120Z-3.3TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2120Z-3.3TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2120Z-3.3TRG1?
AP2120Z-3.3TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2120Z-3.3TRG1 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 AP2120Z-3.3TRG1?
For technical support, including AP2120Z-3.3TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2120Z-3.3TRG1 requirements.
6.How does Aetrix verify that AP2120Z-3.3TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2120Z-3.3TRG1 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 AP2120Z-3.3TRG1 meets industry standards.
7.What is the process for return or replacement of AP2120Z-3.3TRG1?
All AP2120Z-3.3TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2120Z-3.3TRG1, 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 AP2120Z-3.3TRG1 part is unused and in its original packaging.
Return procedure for AP2120Z-3.3TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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