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MAX17112
High-Performance, Step-Up, DC-DC Converter

High-Efficiency Boost Converter Provides Overvoltage Protection Up to 24V


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 380kB)
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Description
The MAX17112 is a high-performance, step-up, DC-DC converter that provides a regulated supply voltage for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). The MAX17112 incorporates current-mode, fixed-frequency (1MHz), pulse-width modulation (PWM) circuitry with a built-in, n-channel power MOSFET to achieve high efficiency and fast-transient response. The input overvoltage protection (OVP) function prevents damage to the MAX17112 from an input surge voltage (up to 24V).

The high switching frequency (1MHz) allows the use of ultra-small inductors and low-ESR ceramic capacitors. The current-mode architecture provides fast-transient response to pulsed loads. A compensation pin (COMP) gives users flexibility in adjusting loop dynamics. The internal MOSFET can generate output voltages up to 20V from an input voltage between 2.6V and 5.5V.

Soft-start slowly ramps the input current and is programmable with an external capacitor. The MAX17112 is available in a 10-pin TDFN package.

An evaluation kit is available:  MAX17112EVKIT  

Key Features   Applications/Uses
  • Input Overvoltage Protection
  • Adjustable Output from VIN to 20V
  • 2.6V to 5.5V Input Supply Range
  • Input Supply Undervoltage Lockout
  • 1MHz Fixed Switching Frequency
  • Programmable Soft-Start
  • Small 10-Pin, TDFN Package
  • Thermal-Overload Protection

 

Key Specifications:  Step-Up Switching Regulators
Part Number VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Output Adjust. Method DC-DC Outputs Oper. Freq.
(kHz)
Package/Pins Smallest Available Pckg.
(mm2)
Price
min max min max max w/pins See Notes
MAX17112  2.6 5.5 2.6 20 0.6 0.6 Resistor 1 1000
TDFN-EP/10
9.6 $0.95 @1k
See All Step-Up Switching Regulators (90)

Diagram
MAX17112: Typical Operating Circuit
Typical Operating Circuit

Evaluation Kits
  • MAX17112EVKIT

    Design Guides
  • Displays (PDF)

    Reliability Reports
  • Reliability Report: MAX17112.pdf
  • Show FIT data for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX17112 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX17112ETB+T    
    Active TDFN-EP;10 pin;9.6 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0061 (PDF)
    Use pkgcode/variation: T1033+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX17112ETB+  
    Active TDFN-EP;10 pin;9.6 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0061 (PDF)
    Use pkgcode/variation: T1033+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    Document Ref.: 19-4393; Rev 0; 2009-02-20
    This page last modified: 2009-07-08


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