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2.5V to 36V, 2.5MHz, PWM Boost Controller with 4μA Shutdown Current and Reduced EMI

High-Voltage Boost Controller Enables Small Solution Size

产品详情

主要特征

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.5
VIN (V) (max) 36
VOUT1 (V) (min) 4
VOUT1 (V) (max) 36
IOUT1 (A) (max) 50
Switch Type External
Output Adjust. Method Resistor
Power Good Signal Yes
ICC (mA) (typ) 1.25
Shutdown Mode Supply Current (µA) (typ) 4
Shutdown Mode Supply Current (µA) (max) 7
# DC-DC Outputs 1
Switching Frequency (kHz) 1000-2500
Design Tools EE-Sim
Package/Pins TQFN-CU/12
UMAX/10
Budgetary
Price (See Notes)
1.89
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参量

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.5
VIN (V) (max) 36
VOUT1 (V) (min) 4
VOUT1 (V) (max) 36
IOUT1 (A) (max) 50
Switch Type External
Output Adjust. Method Resistor
Power Good Signal Yes
ICC (mA) (typ) 1.25
Shutdown Mode Supply Current (µA) (typ) 4
Shutdown Mode Supply Current (µA) (max) 7
# DC-DC Outputs 1
Switching Frequency (kHz) 1000-2500
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=6425', '')
Package/Pins TQFN-CU/12
UMAX/10
Budgetary
Price (See Notes)
1.89

主要特征

  • Reduces Solution Size and Cost
    • All-Ceramic Capacitor Solution Allows Ultra-Compact Solution Size
    • 100kHz to 1MHz (MAX17290) and 1MHz to 2.5MHz (MAX17292) Switching-Frequency with External Synchronization
  • Increases Design Flexibility
    • Bootstrapped Mode Allows Input Voltage to be 2.5V
    • Adjustable Slope Compensation
  • Reduces Power Dissipation
    • >90% Peak Efficiency
    • Low 4μA (typ.) Shutdown Current
  • Operates Reliably
    • 42V Input Voltage Transient Protection
    • Fixed 9ms Internal Software Start Reduces Input Inrush Current
    • PGOOD Output and Hiccup Mode for Enhanced System Protection
    • Overtemperature Shutdown
    • Reduced EMI Emission with Spread-Spectrum Control

应用/用途

  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • Offline Power Supplies
  • Telecom Hardware

描述

The MAX17290/MAX17292 high-efficiency, synchronous step-up DC-DC controllers operate over a 4.5V to 36V input voltage range with 42V input transient protection. The input operating range can be extended to as low as 2.5V in Bootstrapped mode.

The MAX17290 and MAX17292 use a constant-frequency, pulse-width modulating (PWM), peak current-mode control architecture. There are multiple versions of the devices offering one or more of the following functions: a synchronization output (SYNCO) for 180° out-of-phase operation, an overvoltage protection function using a separate input pin (OVP), and a reference input pin (REFIN) to allow on-the-fly output voltage adjustment.

The MAX17290 and MAX17292 operate in different frequency ranges. All versions can be synchronized to an external master clock using the FSET/SYNC input.

The devices are available in a compact 12-pin (3mm x 3mm) TQFN and 10-pin μMAX packages. Both packages have exposed pads. -40°C to +85°C Operation.

简化框图

MAX17290, MAX17292: Functional Diagram MAX17290, MAX17292: Functional Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心