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Analog Devices Inc./Maxim Integrated MAX1896EUT#G16
- Part No.:
- MAX1896EUT#G16
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX1896EUT#G16.pdf
- Description:
- IC REG BST SEPIC ADJ 500MA SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:1,413
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Product details
Overview
MAX1896EUT#G16 from Maxim Integrated is a current-mode, fixed-frequency step-up DC-DC converter with integrated 0.7Ω N-channel MOSFET, 1.4MHz switching frequency, 2.6V–5.5V input range, and adjustable output up to 13V - designed for space-constrained portable power rails in LCD displays and PCMCIA cards.
For engineers reviewing the MAX1896EUT#G16 datasheet, MAX1896EUT#G16 pinout, MAX1896EUT#G16 application, or MAX1896EUT#G16 equivalent, key selection considerations include programmable soft-start timing, 0.01µA shutdown current, guaranteed 12V/120mA output from 5V input, and LT1613 pin compatibility for drop-in replacement in existing SOT23-6 layouts.
Technical Context
The MAX1896EUT#G16 employs current-mode PWM control with internal slope compensation to ensure loop stability at high duty cycles (up to 86%), enabling fast transient response and low-noise operation. Its 1.4MHz oscillator allows compact external components - including 10µH inductors and sub-100nF soft-start capacitors - while maintaining >90% efficiency across load ranges.
It integrates an error amplifier with 1.24V feedback reference, programmable soft-start via external capacitor (charged at 4µA), and shutdown logic that disables bias circuitry, reference, and MOSFET to achieve 0.01µA quiescent current. The LX pin supports peak switch currents up to 0.8A with 1Ω on-resistance and 10µA leakage at 12V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.4MHz typical - enables use of small 10µH inductors and ceramic output capacitors without compromising stability. |
| Input Voltage Range | 2.6V to 5.5V - supports single-cell Li+ (2.7–4.2V) and dual-cell alkaline/NiMH (2.6–3.6V) battery inputs. |
| Output Voltage Range | Adjustable up to 13V - set via external resistor divider on FB pin; regulated by 1.24V ±1% internal reference. |
| Shutdown Current | 0.01µA max - reduces system standby power in handheld devices during sleep mode. |
| Efficiency | >90% typical at 100mA load - achieved via low-RON (0.7Ω) integrated MOSFET and optimized current-mode control. |
| Soft-Start Control | Programmable via external capacitor - charges at 4µA to 0.5V, linearly ramping peak inductor current from 0A to full limit. |
| Undervoltage Lockout | 2.4V nominal with 50mV hysteresis - prevents erratic startup below minimum operating voltage. |
Pinout & Package
MAX1896EUT#G16 is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.0mm height - optimized for ultra-compact PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - LX | Power switch node | Connects directly to inductor and catch diode; requires shortest possible trace to minimize switching noise and EMI. |
| 2 - GND | Analog and power ground | Shared reference for error amplifier, soft-start, and shutdown; must be star-connected near IC to avoid ground bounce. |
| 3 - FB | Feedback input | Monitors output voltage via resistive divider; 1.24V regulation point sets VOUT = 1.24V × (1 + R1/R2). |
| 4 - SHDN | Enable/disable control | Active-low logic input; drives <50µA; must not float - tie to IN for automatic startup or microcontroller GPIO for sequencing. |
| 5 - SS | Soft-start programming | Accepts external capacitor to control inrush current ramp rate; open-circuit disables soft-start. |
| 6 - IN | Bias supply input | Internal regulator input; requires ≥1µF ceramic bypass capacitor placed adjacent to pin for stable bias generation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 0.7Ω N-MOSFET | Eliminates external high-side switch, reducing BOM count and layout area while maintaining 0.8A current limit capability. |
| 1.4MHz fixed-frequency PWM | Enables use of miniature 10µH inductors and low-ESR ceramic capacitors - cutting solution size by >40% vs. 300kHz converters. |
| Programmable soft-start | Prevents input voltage droop and output overshoot during power-up by controlling inductor current slew rate via CSS capacitor. |
| LT1613 pin compatibility | Allows direct PCB-level replacement in legacy designs using Linear Technology's step-up controller without layout changes. |
| 0.01µA shutdown current | Extends battery life in always-on portable systems by minimizing quiescent drain during deep-sleep states. |
Applications
| LCD Display Backlight Power | PCMCIA Card Voltage Boost |
|---|---|
|
Use Scenario: Driving white LED strings requiring 12–13V from a 3.3V or 5V host bus in notebook or industrial display modules. IC Role / Device Role / Timing Role: Primary step-up regulator generating stable, low-noise high-voltage rail for LED current sources. Use Value: Delivers >90% efficiency at 120mA output and supports ceramic output caps - eliminating bulky tantalum and reducing EMI filtering requirements. |
Use Scenario: Providing 5V or 12V auxiliary power from 3.3V PCMCIA slot for legacy peripherals like CompactFlash or SRAM cards. IC Role / Device Role / Timing Role: Standalone boost converter with fast transient response to handle burst-mode card access loads. Use Value: 1.4MHz switching minimizes inductor size and enables rapid load-step recovery (<100µs) critical for reliable card enumeration. |
| Notebook System Rail Generation | Hand-Held Medical Device Power |
|
Use Scenario: Generating 5V or 12V auxiliary rails from main battery in ultraportable notebooks where board space is constrained. IC Role / Device Role / Timing Role: High-efficiency DC-DC converter supporting dynamic load profiles during CPU/GPU activity bursts. Use Value: Soft-start prevents input sag during cold boot; 0.01µA shutdown extends shelf life of battery-backed systems. |
Use Scenario: Powering precision analog front-ends and low-power microcontrollers in portable glucose meters or pulse oximeters. IC Role / Device Role / Timing Role: Low-noise, low-quiescent boost source ensuring stable sensor bias and ADC reference voltages. Use Value: Current-mode control suppresses ripple-induced measurement errors; 1.24V FB reference enables accurate output calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1613CS5#TRMPBF | Pin-compatible but lacks integrated MOSFET - requires external 0.15Ω switch; higher efficiency at >200mA but larger solution size. | Preferred when higher output current (>250mA) or thermal headroom is required; not suitable for space-limited SOT23-only layouts. | Select LT1613CS5#TRMPBF only if external MOSFET integration is acceptable and peak load exceeds 120mA. |
| TPS61040DRVR | 2.5MHz switching, 0.5A switch, 1.8V–6V input - smaller inductor but 1.23V FB reference and no soft-start pin. | Better suited for ultra-low-input (1.8V) or high-frequency EMI-sensitive apps; soft-start must be implemented externally. | Choose TPS61040DRVR when input drops below 2.6V or when 2.5MHz operation is mandatory for EMI compliance. |
Compared with LT1613CS5#TRMPBF and TPS61040DRVR, the MAX1896EUT#G16 uniquely combines integrated 0.7Ω MOSFET, programmable soft-start, and LT1613 pinout in a 6-pin SOT23 - making it optimal for cost-sensitive, space-constrained upgrades of legacy boost designs without layout revision.
Availability
MAX1896EUT#G16 is available at Aetrix Electronics and suitable for notebook computers, LCD displays, PCMCIA cards, portable instrumentation, and hand-held medical devices requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for MAX1896EUT#G16 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, computing, and portable applications.
The MAX1896EUT#G16 belongs to Maxim's high-frequency step-up DC-DC converter product line - engineered specifically for compact, battery-powered systems needing efficient, low-noise, and easy-to-integrate voltage boosting solutions.
FAQ
What is the maximum output voltage supported by the MAX1896EUT#G16?
The MAX1896EUT#G16 supports an adjustable output voltage up to 13V, set via an external resistor divider connected to the FB pin. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables, where VOUT is specified as "up to 13V" under typical operating conditions with VIN ≥ 2.6V. Operation beyond 13V risks violating internal voltage limits on the LX pin (max 14V).
Does the MAX1896EUT#G16 require an external MOSFET?
No, the MAX1896EUT#G16 integrates a 0.7Ω N-channel MOSFET internally - eliminating the need for an external switch. This is explicitly stated in the General Description and confirmed in the Pin Description and Electrical Characteristics (RON = 0.7Ω typ). The LX pin connects directly to the inductor and rectifier, completing the power stage without additional active components.
What is the shutdown current specification for the MAX1896EUT#G16?
The MAX1896EUT#G16 specifies a shutdown supply current of 0.01µA maximum at TA = +25°C, as documented in the Electrical Characteristics table under "Shutdown Supply Current". At extended temperatures (–40°C to +85°C), the limit increases to 10µA. This ultra-low value enables multi-year battery life in always-off portable systems.
Is the MAX1896EUT#G16 pin-compatible with any other step-up controllers?
Yes, the MAX1896EUT#G16 is explicitly pin-compatible with the LT1613 - a Linear Technology (now Analog Devices) step-up controller. This is stated in the Features list and verified by identical 6-pin SOT23-6 pinout (IN, SHDN, FB, SS, GND, LX) and matching functional assignments per the Pin Description table.
What package type does the MAX1896EUT#G16 use?
The MAX1896EUT#G16 uses a 6-pin SOT23-6 package (JEDEC MO-178AA), measuring 1.3mm × 2.9mm with 1.0mm height. This is confirmed in the Ordering Information table ("6 SOT23-6"), Package Information section, and top-view diagram labeled "SOT23" in the datasheet.
MAX1896EUT#G16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.6V
- Voltage - Output (Max):
- 13V
- Current - Output:
- 500mA
- Frequency - Switching:
- 1.4MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX1896EUT#G16 FAQ
1.How can I place an order for MAX1896EUT#G16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1896EUT#G16 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 MAX1896EUT#G16 reliable?
The price and inventory of MAX1896EUT#G16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1896EUT#G16 is usually 5 days.
3.What payment methods are accepted for MAX1896EUT#G16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1896EUT#G16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1896EUT#G16?
MAX1896EUT#G16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1896EUT#G16 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 MAX1896EUT#G16?
For technical support, including MAX1896EUT#G16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1896EUT#G16 requirements.
6.How does Aetrix verify that MAX1896EUT#G16 is sourced from the original manufacturer or authorized distributors?
All MAX1896EUT#G16 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 MAX1896EUT#G16 meets industry standards.
7.What is the process for return or replacement of MAX1896EUT#G16?
All MAX1896EUT#G16 units undergo pre-shipment inspection (PSI). If there is an issue with MAX1896EUT#G16, 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 MAX1896EUT#G16 part is unused and in its original packaging.
Return procedure for MAX1896EUT#G16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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