1. Products
  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Multiple Output Buck Regulators
  6. MAX17007A


Features and Benefits

  • Dual Quick-PWM with Fast Transient Response
  • Automatic Dynamic REFIN1 Detection and PGOOD1/Fault Blanking
  • Fixed and Adjustable Output Voltages
    • ±0.7% Output Accuracy Over Line and Load
    • OUT1: 0 to 2V Dynamic Output or Preset 1.05V
    • OUT2: 0.7V to 2V Range or Preset 1.5V
  • Resistor-Programmable Switching Frequency
  • Integrated BST Switches
  • Differential Current-Sense Inputs
    • Low-Cost DCR Sensing or Accurate Current-Sense Resistors
    • Internally Coupled Current-Sense Compensation
  • Combinable Mode Supports High-Current Dynamic Output Voltages
  • Selectable Forced-PWM, Pulse Skip, or Ultrasonic Mode Operation
  • 26V Maximum Input Voltage Rating
  • Independent Enable Inputs
  • Independent Power-Good Outputs
  • Overvoltage Protection (MAX17007A/MAX17007B Only)
  • Undervoltage/Thermal Protection
  • Voltage Soft-Start and Soft-Shutdown

Product Details

The MAX17007A/MAX17007B/MAX17008 are dual Quick-PWM™ step-down controllers intended for general power generation in battery-powered systems. The two switched-mode power supplies (SMPSs) can also be combined to operate in a two-phase single-output mode. Constant on-time Quick-PWM operation provides fast response to load transients and handles wide input/output (I/O) voltage ratios with ease, while maintaining a relatively constant switching frequency. The switching frequency can be individually adjusted between 200kHz and 600kHz with external resistors. Differential output current sensing allows output sense-resistor sensing for an accurate current limit, or lossless inductor direct-current resistance (DCR) current sensing for lower power dissipation while maintaining 0.7% output accuracy. Overvoltage (MAX17007A/MAX17007B only), undervoltage protection, and accurate user-selectable current limits (15mV, 30mV, 45mV, and 60mV) ensure robust operations.

The SMPS outputs can operate in skip mode or in ultrasonic mode for improved light-load efficiency. The ultrasonic mode eliminates audible noises by maintaining a minimum switching frequency of 25kHz in pulse-skipping mode.

The output voltage of SMPS1 can be dynamically adjusted by changing the voltage at the REFIN1 pin. The device includes a 0.5% accurate reference output that can be used to set the REFIN1 voltage. An external 5V bias supply is required to power the internal circuitry and its gate drivers.

Independent on/off controls with well-defined logic thresholds and independent open-drain power-good outputs provide flexible system configurations. To prevent current surges at startup, the internal voltage target is slowly ramped up from zero to the final target with a slew rate of 1.3mV/µs for SMPS1 at CSL1 and 0.65mV/µs for SMPS2 at FB2. To prevent the output from ringing off below ground in shutdown, the internal voltage target is ramped down from its previous value to zero with the same respective slew rates. Integrated bootstrap switches eliminate the need for external bootstrap diodes.

The MAX17007A/MAX17007B/MAX17008 are available in a space-saving, 28-pin, 4mm x 4mm, TQFN package with an exposed backside pad. The MAX17007B improves crosstalk performance over the MAX17007A.


  • 2 to 4 Li+ Cells Battery-Powered Devices
  • GPU Core Supplies
  • Low-Power I/O Supplies
  • Notebook Computers

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX17007AGTI+ Material Declaration Reliability Data Thin Quad Flatpack, No Leads
MAX17007AGTI+T Material Declaration Reliability Data Thin Quad Flatpack, No Leads
Wafer Fabrication Data MAX17007A Reliability Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.