Microchip MIC45404 Bruksanvisning
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2015-2017 Microchip Technology Inc.DS20005478B-page 1
MIC45404
Features
•Input Voltage Range: 4.5V to 19V
•Output Current: Up to 5A
•82% Peak Efficiency at 12 VIN, 0.9 VOUT
•Pin-Selectable Output Voltages: 0.7V, 0.8V, 0.9V,
1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• ±1% Output Voltage Accuracy
•Supports Safe Pre-Biased Start-Up
•Pin-Selectable Current Limit
•Pin-Selectable Switching Frequency
•Internal Soft Start
•Thermal Shutdown
•Hiccup Mode Short-Circuit Protection
•Available in a 54-Lead 6 mmx10 mm QFN
Package
•Ultra-Low Profile: 2.0 mm Height
•-40°C to +125°C Junction Temperature Range
Applications
•Servers, Data Storage, Routers and Base Stations
•FPGAs, SSD, DSP and Low-Voltage ASIC Power
General Description
The MIC45404 device is an ultra-low profile, synchro-
nous step-down regulator module, featuring a unique
2.0 mm height. The module incorporates a DC-to-DC
regulator, bootstrap capacitor, high-frequency input
capacitor and an inductor in a single package. The
module pinout is optimized to simplify the Printed
Circuit Board (PCB) layout process.
This highly-integrated solution expedites system
design and improves product time to market. The inter-
nal MOSFETs and inductor are optimized to achieve
high efficiency at low output voltage. Due to the fully
optimized design, MIC45404 can deliver up to 5A
current with a wide input voltage range of 4.5V to 19V.
The MIC45404 is available in a 54-lead 6 mm x
10mmx 2.0 mmQFN package with a junction operat-
ing temperature range from -40C to +125C, which
makes an excellent solution for systems in which PCB
real-estate and height are important limiting factors,
and air flow is restricted.
Typical Application
VIN
OUT
VIN
4.5V to 19V
FREQ
VDDA
VOSET1
PG
GND
GND
VOSET0
COMP
EN/DLY
OUTSNS
MIC45404
V
DDA
Power-Good
Enable
VDDA
VDDA
Output
Voltage
Selection
VDDA
Frequency
Selection
ILIM
VDDA
Current Limit
Selection
VOUT
MIC45404 12V 5A DC-to-DC Converter
19V 5A Ultra-Low Profile DC-to-DC Power Module
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | MIC45404 |
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