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Analog Devices Inc./Maxim Integrated MAX38913AANC+T
- Part No.:
- MAX38913AANC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-XFBGA, WLBGA
- Datasheet:
-
MAX38913AANC+T.pdf
- Description:
- IC REG 1A DUAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,457
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Product details
Overview
MAX38913AANC+T from Analog Devices is a 1A ultra-low-noise LDO regulator with dual-level programmable output voltage, 4µVRMS output noise (10Hz–100kHz), ±1% output accuracy over line/load/temperature, and integrated pass-through mode. It delivers stable power to image sensors and portable sensor systems requiring dynamic voltage scaling between two regulated levels.
For engineers reviewing the MAX38913AANC+T datasheet, MAX38913AANC+T pinout, MAX38913AANC+T application, or MAX38913AANC+T equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and confirmed alternative options for dual-voltage LDO selection.
Technical Context
The MAX38913AANC+T implements a dual-mode control architecture using EN1/EN2 logic to select between MODE 1, MODE 2, pass-through, or shutdown - enabling dynamic switching between two precise output voltages without external sequencing. Its feedback loop incorporates BYP-pin-controlled slew rate (50µA/CBYP) for controlled transitions and soft-start.
It integrates active discharge (6Ω), reverse-current protection, thermal shutdown (165°C trip), and overcurrent limiting (1.4A typ). The TDFN-14 package supports optional POK and PORB outputs for system-level power sequencing - features absent in the WLP variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Noise | 4µVRMS (10Hz–100kHz): Enables clean analog supply for high-resolution image sensors without added filtering. |
| Output Accuracy | ±1% over line/load/temperature: Ensures consistent voltage delivery across industrial temperature range (−40°C to +125°C). |
| Max Output Current | 1A continuous: Supports demanding loads like CMOS image sensor arrays or multi-core microcontrollers. |
| Dropout Voltage | 28mV at 1A/5.0V input: Minimizes power loss and heat generation in low-VIN–VOUT margin applications. |
| PSRR | 75dB at 10kHz: Rejects high-frequency noise from noisy DC/DC converters upstream. |
| Quiescent Current | 1.37mA in regulation mode; 115µA in pass-through: Optimizes battery life in portable sensor nodes. |
| Active Discharge | 6Ω pull-down on OUT during shutdown: Ensures rapid, controlled discharge of up to 300µF output capacitance. |
Pinout & Package
MAX38913AANC+T is packaged in a 3mm × 3mm, 14-pin TDFN with exposed thermal pad (Package Code: T1433+2C). This full-featured variant includes POK and PORB pins not available in the WLP version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pins 1,14) | Input supply connection | Dual-pin configuration reduces IR drop and improves current handling for 1A load. |
| OUT (Pins 3,11) | Regulated output node | Dual-output pins lower impedance path to support fast transient response and reduce thermal stress. |
| GND (Pins 2,12) | Ground reference | Separate GND pins for IN and OUT paths minimize ground bounce in mixed-signal systems. |
| EN1 / EN2 (Pins 10,11) | Mode-select enable inputs | Logic combination (01/11/10/00) selects MODE 1 / MODE 2 / pass-through / shutdown - no external controller needed. |
| RSEL1 / RSEL2 (Pins 9,8) | Voltage-select resistor inputs | Accept ±1% resistors to set two independent output voltages (MAX38913 only); left floating for MAX38914 pre-programmed variants. |
| BYP (Pin 5) | Bypass capacitor node | Controls output slew rate (dV/dt = 50µA/CBYP) and filters reference noise - critical for smooth voltage transitions. |
| POK (Pin 6) | Power-OK open-drain output | Signals when VOUT reaches 91% of target - used for downstream power sequencing or fault detection. |
| PORB (Pin 7) | Power-on-reset open-drain output | Holds system in reset for ≥10ms after regulation is achieved - ensures reliable digital initialization. |
| OUTS (Pin 13) | Remote output sense | Compensates for PCB trace IR drop to maintain ±1% accuracy at point-of-load. |
Key Features
| Feature | Design Value |
|---|---|
| Two-level dynamic voltage scaling | Enables runtime optimization of sensor or processor core voltage (e.g., 3.3V active → 1.8V idle) without firmware intervention. |
| Pass-through mode with 0.06Ω RON | Bypasses LDO entirely to deliver near-zero-drop input-to-output path while retaining current limiting and thermal protection. |
| Integrated 6Ω active discharge | Guarantees safe, rapid discharge of large output caps (≤300µF) during shutdown - eliminates need for external circuitry. |
| 4µVRMS ultra-low noise | Meets stringent analog supply requirements for 12-bit+ image sensors and precision ADCs without additional LDO stages. |
| POK/PORB with 10ms delay | Provides hardware-based, glitch-immune power sequencing signals compatible with FPGA, ASIC, and microcontroller reset inputs. |
Applications
| Image Sensor Power | Portable Sensor Node |
|---|---|
Use Scenario: Powers high-resolution CMOS image sensors in surveillance cameras or medical endoscopes requiring low-noise bias for pixel readout circuits. IC Role / Device Role / Timing Role: Primary analog supply LDO delivering stable 3.3V or 1.8V with <4µVRMS noise and ±1% accuracy across temperature. Use Value: Prevents fixed-pattern noise and SNR degradation in raw image data by eliminating switching regulator coupling. | Use Scenario: Supplies MEMS accelerometers, gyroscopes, and environmental sensors in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Dual-voltage LDO enabling dynamic power management: 2.3V for active sensing, 2.0V for low-power standby. Use Value: Extends battery life via hardware-triggered voltage scaling - no MCU involvement required for mode transitions. |
| SD Memory Card Interface | Industrial Camera Module |
Use Scenario: Provides regulated I/O and core voltage to SD card controllers operating in UHS-I mode with strict voltage tolerance. IC Role / Device Role / Timing Role: Dual-rail LDO generating 3.3V for interface and 1.8V for internal logic, switched via EN1/EN2 control lines. Use Value: Eliminates need for discrete level shifters or multiple regulators - simplifies BOM and layout in space-constrained card slots. | Use Scenario: Powers machine vision camera modules with programmable exposure timing and on-board FPGA processing. IC Role / Device Role / Timing Role: High-accuracy LDO with POK/PORB outputs ensuring synchronized power-up of sensor, FPGA, and ISP blocks. Use Value: Guarantees deterministic boot sequence and prevents metastability in clock domain crossings during cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX38914AANC+T | Factory pre-programmed 2.3V/2.0V outputs; RSEL pins disabled and must float. | No external resistor network needed; fixed dual-voltage points simplify design-in for known use cases. | Select when dual-voltage values are fixed and flexibility is unnecessary - reduces BOM count and layout complexity. |
| TPL7407LPGEDR | 7-channel 200mA low-noise LDO array; no pass-through mode or POK/PORB; 15µVRMS noise. | Targeted at multi-rail, lower-current systems (e.g., sensor hubs); lacks dynamic voltage scaling capability. | Choose for distributed low-noise supplies across multiple peripherals where single-rail 1A capability is not required. |
Compared with MAX38913AANC+T, MAX38914AANC+T removes resistor programming overhead but sacrifices configurability, while TPL7407LPGEDR trades single-channel 1A performance for multi-rail integration at lower current and higher noise - making each suitable for distinct system partitioning strategies.
Availability
MAX38913AANC+T is available at Aetrix Electronics and suitable for image sensor power, portable sensor nodes, and SD memory card interfaces requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX38913AANC+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 series belongs to Analog Devices' precision power management portfolio, designed specifically for noise-sensitive, dynamically scalable applications in imaging, sensing, and portable electronics.
FAQ
What is the function of the BYP pin on the MAX38913AANC+T?
The BYP pin on the MAX38913AANC+T connects to a capacitor (10nF–100nF) that controls the output voltage slew rate during startup and mode transitions via dV/dt = 50µA/CBYP. It also filters reference and feedback noise, contributing directly to the device's 4µVRMS output noise specification. For MAX38913AANC+T, proper BYP capacitor selection ensures controlled voltage ramping and avoids inrush current issues.
Does the MAX38913AANC+T support remote voltage sensing?
Yes, the MAX38913AANC+T supports remote voltage sensing through the OUTS pin (Pin 13), which connects to the point of load to compensate for PCB trace resistance. This feature maintains ±1% output accuracy at the actual load location - critical for applications like high-resolution image sensors where even small IR drops degrade performance. The MAX38913AANC+T datasheet specifies OUTS as an essential connection for precision regulation.
How does the pass-through mode operate in the MAX38913AANC+T?
In pass-through mode (EN2=HIGH, EN1=LOW), the MAX38913AANC+T shorts the OUT pin directly to IN via a 0.06Ω switch, bypassing the LDO regulation path. Quiescent current drops to 115µA, and current limiting remains active at ~2A. The device retains thermal protection and monitors for overload - if tripped, it automatically reverts to regulated dropout mode. This mode is ideal for battery backup paths or low-loss power routing in MAX38913AANC+T designs.
What are the key differences between MAX38913AANC+T and MAX38914AANC+T?
The MAX38913AANC+T supports 33 programmable output voltage combinations via RSEL1/RSEL2 resistors, while the MAX38914AANC+T has factory-set 2.3V/2.0V outputs with RSEL pins disabled. Both share identical pinout, package, noise, accuracy, and pass-through functionality. The MAX38913AANC+T offers design flexibility; the MAX38914AANC+T reduces component count for fixed-voltage applications - both are drop-in compatible in TDFN-14 footprint.
Can the MAX38913AANC+T be used with ceramic output capacitors smaller than 10µF?
Yes - the MAX38913AANC+T is stable with ≥4µF effective output capacitance (e.g., a 4.7µF X7R MLCC). The datasheet guarantees stability down to 4µF with ESR <0.03Ω. However, 10µF is recommended for optimal transient response and PSRR. Using smaller capacitors may increase output ripple under load transients but remains within specification if effective capacitance meets the 4µF minimum - verified in MAX38913AANC+T characterization data.
MAX38913AANC+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:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 1.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.0642V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 2 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 50dB (1kHz ~ 1MHz)
- Control Features:
- Current Limit, Enable, Soft Start
- 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)
MAX38913AANC+T FAQ
1.How can I place an order for MAX38913AANC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX38913AANC+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 MAX38913AANC+T reliable?
The price and inventory of MAX38913AANC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX38913AANC+T is usually 5 days.
3.What payment methods are accepted for MAX38913AANC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX38913AANC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX38913AANC+T?
MAX38913AANC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX38913AANC+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 MAX38913AANC+T?
For technical support, including MAX38913AANC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX38913AANC+T requirements.
6.How does Aetrix verify that MAX38913AANC+T is sourced from the original manufacturer or authorized distributors?
All MAX38913AANC+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 MAX38913AANC+T meets industry standards.
7.What is the process for return or replacement of MAX38913AANC+T?
All MAX38913AANC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX38913AANC+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 MAX38913AANC+T part is unused and in its original packaging.
Return procedure for MAX38913AANC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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