MSP1250
Power Converter 150kHz 3A
Step-down Voltage Regulator
General Description
The MSP1250 series of regulators are monolithic integrated circuits that provide all the
active functions for a step-down (buck) switching regulator, capable of driving a 3A load
with excellent line and load regulation. These devices are avail-able in fixed output voltages
of 3.3V, 5V, 12V, and an adjust-able output version.
Requiring a minimum number of external components, these regulators are simple to use
and include internal frequency compensation鈥? and a fixed-frequency oscillator.
The MSP1250 series operates at a switching frequency of 150 kHz thus allowing smaller
sized filter components than what would be needed with lower frequency switching
regulators. Available in a standard 5-lead TO-220 package with several different lead bend
options, and a 5-lead TO-263 surface mount package. A standard series of inductors are
available from several different manufacturers optimized for use with the MSP1250 series.
This feature greatly simplifies the design of switch-mode power supplies.
Other features include a guaranteed 鹵4% tolerance on output voltage under specified input
voltage and output load conditions, and 鹵15% on the oscillator frequency. External
shutdown is included, featuring typically 80 碌A(chǔ) standby current. Self-protection features
include a two stage frequency reducing current limit for the output switch and an over tem
perature shutdown for complete protection under fault conditions.
Features
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3.3V, 5V, 12V, and adjustable output versions
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Adjustable version output voltage range, 1.2V to 37V鹵4% max over line and load
conditions
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Available in TO-220 and TO-263 packages
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Guaranteed 3A output load current
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Input voltage range up to 40V
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Requires only 4 external components
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Excellent line and load regulation specifications
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150 kHz fixed frequency internal oscillator
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TTL shutdown capability
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Low power standby mode, I
Q
typically 80 碌A(chǔ)
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High efficiency
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Uses readily available standard inductors
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Thermal shutdown and current limit protection
Applications
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Simple high-efficiency step-down (buck) regulator
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On-card switching regulators
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Positive to negative converter
MSP1250相關(guān)型號PDF文件下載
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英文版
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英文版
Thick Film Resistor Networks Single-In-Line, Molded SIP 01, ...
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英文版
Thick Film Resistor Networks Single-In-Line, Molded SIP 01, ...
VISAY [Vis...
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英文版
Thick Film Resistor Networks Single-In-Line, Molded SIP 01, ...
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英文版
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1 Amp Schottky Rectifier
MICROSEMI
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1 Amp Schottky Rectifier
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英文版
1 Amp Schottky Rectifier
MICROSEMI
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英文版
1 Amp Schottky Rectifier
MICROSEMI ...
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英文版
1 Amp Schottky Rectifier
MICROSEMI
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英文版
1 Amp Schottky Rectifier
MICROSEMI ...
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英文版
Power Converter 150kHz 3A Step-down Voltage Regulator
ETC
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英文版
Power Converter 150kHz 3A Step-down Voltage Regulator
ETC [ETC]
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英文版
Pushbutton Switch SPST-NC Standard Panel Mount, Rear
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英文版
Pushbutton Switch SPST-NO Standard Panel Mount, Rear
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英文版
RES ARRAY 9 RES 100K OHM 10SIP
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英文版
RES ARRAY 9 RES 10K OHM 10SIP
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英文版
RES ARRAY 9 RES 1K OHM 10SIP
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英文版
RES ARRAY 9 RES 20K OHM 10SIP
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