Multiple-Output Power-Supply Controllers Generate All the Supply Rails for Thin-Film Transistor (TFT) Liquid-Crystal Display (LCD) Monitors
Description | ||||||
The MAX1530/MAX1531 include soft-start functions to limit inrush current during startup. An internal step-down converter current-limit function and a versatile overcurrent shutdown protect the power supplies against fault conditions. The MAX1530/MAX1531 use a current-mode control architecture, providing fast load transient response and easy compensation. An internal linear regulator provides MOSFET gate drive and can be used to power small external loads. The MAX1530/MAX1531 can operate from inputs as high as 28V and are well suited for LCD monitor and TV applications running directly from AC/DC wall adapters. Both devices are available in a small (5mm x 5mm), ultra-thin (0.8mm), 32-pin QFN package and operate over the -40°C to +85°C temperature range. |
An evaluation kit is available: MAX1531EVKIT
Key Features | Applications/Uses | |
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Key Specifications: Multifunction PMICs | ||||||||||||||||||||||||||||||
Part Number | Primary Topology | Monitor/Control Features | DC-DC/Power Features | LCD/LED/Flash/CCD Features | VIN (V) |
VIN (V) |
VOUT (V) |
VOUT (V) |
Max. IOUT (A) |
Max. IOUT (A) |
Oper. Freq. (kHz) |
Package/Pins | Smallest Available Pckg. (mm2) |
Price | ||||||||||||||||
min | max | min | max | ≥ | ≤ | max w/pins | See Notes | |||||||||||||||||||||||
MAX1530 | Step-Down |
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TFT Bias | 4.5 | 28 | 1.25 | 16.5 | 1.5 | 1.5 | 500 |
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26 | - | ||||||||||||||||
MAX1531 |
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$2.20 @1k | ||||||||||||||||||||||||||||
See All Multifunction PMICs (83) |
Diagram |
Typical Operating Circuit |
source:ShenZhen henlito electronic co.,ltd.
web:www.henlito.com