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Analog Devices Inc./Maxim Integrated MAX38914AANC+T
- Part No.:
- MAX38914AANC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-XFBGA, WLBGA
- Datasheet:
-
MAX38914AANC+T.pdf
- Description:
- MAX38914AANC+T
- Quantity:
- Payment:
- Shipping:
Inventory:1,033
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Product details
Overview
MAX38914AANC+T from Analog Devices is a 1A ultra-low-noise LDO voltage regulator with factory-preprogrammed dual-output voltages (2.3V and 2.0V), 4µVRMS output noise (10Hz–100kHz), ±1% output accuracy over line/load/temperature, and integrated pass-through mode for zero-drop bypass operation. It serves as a precision power supply for image sensors and portable sensor systems requiring dynamic voltage scaling without external programming resistors.
For engineers reviewing the MAX38914AANC+T datasheet, MAX38914AANC+T pinout, MAX38914AANC+T application, or MAX38914AANC+T equivalent, this page delivers verified electrical specs, TDFN-14 package terminal mapping, real-world use cases in SD memory card power sequencing and low-noise imaging rails, and two validated alternative parts with documented functional trade-offs.
Technical Context
The MAX38914AANC+T implements a dual-mode control architecture: regulation mode uses internal feedback to maintain precise 2.3V/2.0V outputs across 1.8V–5.5V input, while pass-through mode activates a low-RON (0.06Ω) switch to directly connect IN to OUT. Its 47nF BYP capacitor sets output slew rate at 5V/ms, enabling controlled voltage transitions between modes without overshoot.
It integrates active discharge (6Ω), overcurrent protection (1.4A typ), thermal shutdown (165°C), and open-drain POK/PORB status outputs-available only in the 3mm×3mm TDFN-14 package. The device achieves 75dB PSRR at 10kHz and maintains stability with ≥4µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Pre-programmed 2.3V (MODE 1) and 2.0V (MODE 2); no external RSEL required. |
| Output Noise | 4.05µVRMS (10Hz–100kHz); enables clean power for CMOS image sensors and ADCs. |
| Load Current | Up to 1A continuous; supports high-current portable sensor subsystems. |
| Dropout Voltage | 28mV at 1A/5.0V input (WLP); 48mV at 1A/3.6V input (TDFN); ensures efficiency in low-VIN–VOUT margin designs. |
| PSRR | 75dB at 10kHz; suppresses switching noise from upstream DC/DC converters. |
| Operating Temp | -40°C to +125°C junction; qualified for automotive and industrial embedded environments. |
| Quiescent Current | 1.37mA in regulation mode; 115µA in pass-through mode; extends battery life in duty-cycled systems. |
Pinout & Package
MAX38914AANC+T is packaged in a 3mm × 3mm, 14-pin TDFN with exposed thermal pad (Package Code: T1433+2C). This RoHS-compliant package supports high-power dissipation (θJA = 41°C/W on 4-layer board) and includes dedicated POK and PORB pins for system-level power sequencing.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 13, 14 | IN | Input supply rail (1.8V–5.5V); requires ≥4µF ceramic capacitor to GND for stability. |
| 3, 12 | OUT | Main regulated output (2.3V/2.0V); delivers up to 1A with ±1% accuracy. |
| 4 | POK | Open-drain Power-OK signal; asserts high after VOUT reaches 91% of target and remains valid during regulation. |
| 5 | PORB | Open-drain Power-on-Reset; holds downstream logic in reset for ≥10ms after VOUT stabilizes. |
| 6 | BYP | Bypass capacitor node (10nF–100nF to OUT); controls output slew rate and reduces reference noise. |
| 7 | OUTS | Output voltage sense point; connects to load for remote sensing to compensate trace IR drop. |
| 8, 11 | EN1, EN2 | Mode-select inputs: [01]=MODE1 (2.3V), [11]=MODE2 (2.0V), [10]=pass-through, [00]=shutdown. |
| 9, 10 | RSEL1, RSEL2 | No-connect (NC) for MAX38914; internally pre-programmed-must be left floating. |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-output voltage selection | Factory-set 2.3V and 2.0V outputs eliminate external resistor networks and layout complexity. |
| Pass-through mode | 0.06Ω ON-resistance bypass path reduces dropout to near-zero and cuts quiescent current to 115µA. |
| Active discharge | 6Ω internal pull-down rapidly discharges output capacitors (≤300µF) during shutdown for safe sequencing. |
| Low-noise regulation | 4.05µVRMS noise and 75dB PSRR at 10kHz enable direct powering of noise-sensitive analog front-ends. |
| Status signaling | Dedicated open-drain POK and PORB outputs simplify multi-rail power sequencing in compact PCBs. |
Applications
| Image Sensor Power | SD Memory Card Interface |
|---|---|
|
Use Scenario: Supplying dual-voltage rails (2.3V analog core, 2.0V I/O) to high-resolution CMOS image sensors in mobile cameras. IC Role / Device Role / Timing Role: Precision LDO providing dynamically switched low-noise bias with sub-1% regulation accuracy and fast transient response. Use Value: Eliminates need for discrete voltage dividers or secondary regulators; 4µVRMS noise prevents image fixed-pattern noise (FPN). |
Use Scenario: Powering SD card controller and flash memory interface in portable data loggers with battery-backed operation. IC Role / Device Role / Timing Role: Dual-mode regulator delivering 2.3V for controller logic and 2.0V for I/O signaling, synchronized via EN1/EN2 control. Use Value: Reduces BOM count by replacing two separate LDOs; pass-through mode enables direct battery-to-card power during high-speed write bursts. |
| Portable Sensor Hub | Industrial Camera Module |
|
Use Scenario: Powering MEMS inertial sensors and environmental sensors (e.g., humidity, temperature) in wearable health monitors. IC Role / Device Role / Timing Role: Low-quiescent-current LDO supplying stable 2.0V/2.3V rails with active discharge for rapid power cycling. Use Value: 115µA pass-through mode extends battery life; ±1% accuracy ensures sensor ADC reference stability across temperature. |
Use Scenario: Providing regulated power to FPGA-based camera modules operating in extended temperature (-40°C to +85°C ambient). IC Role / Device Role / Timing Role: High-reliability LDO with thermal shutdown (165°C) and overcurrent protection (1.4A) for harsh industrial environments. Use Value: TDFN-14 package with exposed pad ensures robust thermal performance; POK/PORB signals coordinate FPGA configuration timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX38913AANC+T | Programmable RSEL1/RSEL2 inputs support 33 voltage combinations per mode; requires external 1% resistors. | Suitable when flexible voltage selection (0.6V–5.0V) is needed instead of fixed 2.3V/2.0V. | Select MAX38913AANC+T only if design requires field-configurable outputs; MAX38914AANC+T simplifies layout and eliminates resistor tolerance errors. |
| TPL7407LADGQR | Single-output 500mA LDO with 15µVRMS noise; no pass-through mode or dual-voltage capability. | Limited to single-rail, lower-current applications; lacks POK/PORB and active discharge. | Choose TPL7407LADGQR only for cost-sensitive, single-voltage systems where noise <15µVRMS and 500mA load are sufficient. |
Compared with MAX38914AANC+T, MAX38913AANC+T trades fixed-voltage simplicity for programmability, while TPL7407LADGQR sacrifices dual-mode operation, noise performance, and system-level features (POK/PORB, active discharge) to reduce cost and footprint.
Availability
MAX38914AANC+T is available at Aetrix Electronics and suitable for image sensor power, SD memory card interfaces, and portable sensor hubs requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for MAX38914AANC+T 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX38913/MAX38914 product line was designed specifically for low-noise, dynamically scalable power delivery in imaging, sensor, and memory subsystems-emphasizing ultra-low noise, dual-voltage flexibility, and integrated system-level functions like POK and active discharge.
FAQ
What are the factory-programmed output voltages of the MAX38914AANC+T?
The MAX38914AANC+T has fixed output voltages of 2.3V in MODE 1 (EN2=LOW, EN1=HIGH) and 2.0V in MODE 2 (EN2=HIGH, EN1=HIGH). These values are laser-trimmed at wafer test and require no external components-RSEL1 and RSEL2 pins must remain unconnected.
Does the MAX38914AANC+T support pass-through mode, and what is its ON-resistance?
Yes, the MAX38914AANC+T supports pass-through mode when EN2=HIGH and EN1=LOW. In this state, the internal switch exhibits 0.06Ω typical ON-resistance, enabling near-zero dropout operation and reducing quiescent current to 115µA while maintaining current limiting at ~2A.
Can the MAX38914AANC+T be used with ceramic output capacitors smaller than 10µF?
Yes-the MAX38914AANC+T is stable with as little as 4µF effective output capacitance (e.g., a 10µF X7R MLCC derated at bias). However, using ≥10µF improves transient response and reduces output ripple, especially under 1A load steps.
What is the function of the BYP pin on the MAX38914AANC+T, and what capacitor value is recommended?
The BYP pin connects to a capacitor (10nF–100nF) between BYP and OUT to filter reference noise and control output slew rate. A 47nF capacitor yields a 5V/ms slew rate, balancing startup speed and inrush current; larger values slow transitions to minimize stress on upstream supplies.
Are POK and PORB pins available on all MAX38914AANC+T packages?
No-POK and PORB are exclusive to the 14-pin TDFN package (MAX38914AANC+T). They are not present in the WLP variant. These open-drain outputs require external pull-up resistors (10kΩ–200kΩ) and provide power-good indication and configurable reset timing for system sequencing.
MAX38914AANC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Programmable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2V, 2.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 2 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 50dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLP (1.93x1.34)
MAX38914AANC+T FAQ
1.How can I place an order for MAX38914AANC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX38914AANC+T 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 MAX38914AANC+T reliable?
The price and inventory of MAX38914AANC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX38914AANC+T is usually 5 days.
3.What payment methods are accepted for MAX38914AANC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX38914AANC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX38914AANC+T?
MAX38914AANC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX38914AANC+T 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 MAX38914AANC+T?
For technical support, including MAX38914AANC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX38914AANC+T requirements.
6.How does Aetrix verify that MAX38914AANC+T is sourced from the original manufacturer or authorized distributors?
All MAX38914AANC+T 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 MAX38914AANC+T meets industry standards.
7.What is the process for return or replacement of MAX38914AANC+T?
All MAX38914AANC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX38914AANC+T, 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 MAX38914AANC+T part is unused and in its original packaging.
Return procedure for MAX38914AANC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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