MAX25277

36V, 2.5A Mini Buck Converter with 3.5uA IQ

Best-in-Class Ultra-Low IQ Mini Buck Ideal for Automotive Applications


Please check latest availability status for a specific part variant.

Description

The MAX20077/MAX25277 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 2.5A (2.0A for the MAX20077ATCC/VY+ variant) with 3.5V to 36V input voltages while using only 3.5μA quiescent current at no load.

The device provides an accurate output voltage of ±2% within the normal 6V to 18V operation input range. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The device can operate in dropout by running at 99% duty cycle, making it ideal for automotive and industrial applications. The device offers two fixed 5V and 3.3V output voltages. In addition, the device can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. A 400kHz option is also offered to provide minimum switching losses and maximum efficiency. The device automatically enters skip mode at light loads with ultra-low 3.5μA quiescent current at no load. The device offers pin-enabled spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20077/MAX25277 variants are available in a small (3mm x 3mm), 12-pin, side-wettable TDFN package with an exposed pad, and require very few external components.

Key Features

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20077ATCA/VY+/B/D/E = 2.5A IOUT
    • MAX20077ATCC/VY+ = 2.0A IOUT
    • 3.5μA Quiescent Current when in Standby Mode
  • Small Solution Size Saves Space
    • 20ns Minimum On-Time
    • 2.1MHz or 400kHz Operating Frequency
    • Programmable 1V to 10V Output Voltages, or Fixed 5V/3.3V Options Available
    • Fixed 3.5ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V), or Externally Resistor Adjustable (1V to 10V) with ±1.5% FB Accuracy
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

Applications/Uses

  • Automotive
  • High-Voltage DC-DC Converters
  • Industrial
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX20077 NEW!3.540110
3.3
5
Preset
Resistor
2.5InternalYesYes1
400
2100
TDFN-CU/12
$1.09 @1k
MAX25277 NEW!3
TDFN-CU/12
-
See All Step-Down Switching Regulators (359)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX20077EVKIT: Evaluation Kit for the MAX20077

Quality and Environmental Data

Request Reliability Report for: MAX25277 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Related Resources


MAX38640A
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38640B
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38641A
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38641B
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38642A
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38642B
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38643A
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38643B
Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter

  • Extends Battery Life
  • Easy to Use – Addresses Popular Operation
  • Protects System in Multiple Use Cases

MAX38903C
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903D
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903A
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX38903B
1.7V—5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz

MAX20006
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20008
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20004
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20077EVKIT
Evaluation Kit for the MAX20077

  • 3.5V to 36V Input Supply Range
  • 5V or 3.3V Fixed Output Voltage, or Adjustable Between 1V and 10V
  • Delivers Up to 2.5A Output Current

MAX25277
36V, 2.5A Mini Buck Converter with 3.5uA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20077
36V, 2.5A Mini Buck Converter with 3.5uA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX77503
14V Input, 1.5A High-Efficiency Buck Converter with 9μA IQ

  • 1.5A Single Channel Buck Regulator
  • 3V to 14V Input Voltage Range
  • 0.8V to 99%VSUP Output Voltage Range

MAX17271
nanoPower Triple/Dual-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator

  • 3-Output/2-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator
  • 2.7V to 5.5V Input Voltage Range
  • Low-Power and Long Battery Life

MAX17270
nanoPower Triple/Dual-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator

  • 3-Output/2-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator
  • 2.7V to 5.5V Input Voltage Range
  • Low-Power and Long Battery Life

MAXM17900
4V to 24V, 100mA, Compact Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17552
4V to 60V, 100mA, Compact Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAX38888
2.5V–5.0V, 0.5A/2.5A Reversible Buck/Boost Regulator for Backup Power Applications

  • 2.5V to 5V System Output Voltage
  • 0.8V to 4.5V Cap Voltage Range
  • Up to 2.5A Peak Inductor Discharge Current

MAX17250
2.7V to 18V Input, Boost Converter with 0.1uA True Shutdown, Short Circuit Protection and Selectable Input Current Limit

  • Input Voltage Range 2.7V to 18V
  • Output Voltage Range 3V to 18V, > VIN
  • Integrated Power FETs

MAX17672
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX17671
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX17670
Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20098
Versatile 36V 2.2MHz Buck Controller with 3.5µA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX17633
4.5V to 36V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAXM17903
4.5V to 24V, 300mA Compact Step-Down Power Module

  • Easy to use
  • High Efficiency
  • Flexible Design

MAXM15064
4.5V to 60V, 300mA Compact Step-Down Power Module

  • Easy to use
  • High Efficiency
  • Flexible Design

MAX77680
3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ

  • Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
  • Compact, High-Efficiency Power Solution
  • Small Size

MAX77681
3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ

  • Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
  • Compact, High-Efficiency Power Solution
  • Small Size

MAX20416
2.2MHz Dual-Output, Low-Voltage Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX77278
Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs

  • Highly Integrated
  • Low Power
  • Charger Optimized for Small Battery Size

MAX20471
Low-Voltage Synchronous Boost Converter

  • Synchronous Boost Converter
  • 3.0V to 4.0V Operating Supply Voltage
  • True Output Shutdown
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
  • Robust for the Automotive Environment
    • Current-Mode Control, Forced-PWM, and Skip Operation
    • Overtemperature and Overcurrent Protection
    • 12-Pin (3mm × 3mm) TDFN

  • MAX20472
    Low-Voltage Synchronous Boost Converter

    • Synchronous Boost Converter
    • 3.0V to 4.0V Operating Supply Voltage
    • True Output Shutdown
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
  • Robust for the Automotive Environment
    • Current-Mode Control, Forced-PWM, and Skip Operation
    • Overtemperature and Overcurrent Protection
    • 12-Pin (3mm × 3mm) TDFN

  • MAX20473
    Low-Voltage Synchronous Boost Converter

    • Synchronous Boost Converter
    • 3.0V to 4.0V Operating Supply Voltage
    • True Output Shutdown
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
  • Robust for the Automotive Environment
    • Current-Mode Control, Forced-PWM, and Skip Operation
    • Overtemperature and Overcurrent Protection
    • 12-Pin (3mm × 3mm) TDFN

  •