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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.
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.
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Data Sheet
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An evaluation kit is available: MAX17112EVKIT
Key Features
- 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
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Applications/Uses
- LCD Monitor Panels
- Notebook Computer Displays
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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) |
Budgetary 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 |
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9.6 |
$0.62 @1k |
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See All Step-Up Switching Regulators (91)
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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 prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX17112ETB+
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Active |
TDFN-EP;10 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0061 (PDF)
Use pkgcode/variation: T1033+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX17112ETB+T
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Active |
TDFN-EP;10 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0061 (PDF)
Use pkgcode/variation: T1033+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * 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.
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Information Index
Document Ref.: 19-4393
Rev 0;
2009-02-20
This page last modified: 2009-07-08
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