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DP2596 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 3A 150KHz Step-Down Voltage Regulator - DT-SEMI

भाग संख्या DP2596
समारोह 3A 150KHz Step-Down Voltage Regulator
मैन्युफैक्चरर्स DT-SEMI 
लोगो DT-SEMI लोगो 
पूर्व दर्शन
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<?=DP2596?> डेटा पत्रक पीडीएफ

DP2596 pdf
Block Diagram
DP2596
3A 150KHz Step-Down Voltage Regulator
Pin Descriptions
Symbol Pin No.
Description
VIN
Output
Ground
Feedback
ON/OFF
This pin is the positive input supply for the DP2596 Step-down switching regulator. In
1 order to minimize voltage transients and to supply the switching current needed by the
regulator, a suitable input bypass capacitor must be present.
This is the emitter of the internal switch. The saturation voltage VSAT of this output
2 switch is typically 1.5V. It should be kept in mind that the PCB area connected to this
pin should be kept to a minimum in order to minimize coupling to sensitive circuitry.
3 Circuit ground pin. See the information about the PCB layout.
This pin senses regulated output voltage to complete the feedback loop. The signal is
divided by the internal resistor divider network R2, R1 and applied to the
non-inverting input of the internal error amplifier. In the Adjustable version of the
4
DP2596 switching regulator this pin is the direct input of the error amplifier and the
resistor network R2, R1 is connected externally to allow programming of the output
voltage.
It allows the switching regulator circuit to be shut down using logic level signals, this
5 dropping the total input supply current to approximately 80mA. The threshold voltage
is typically 1.4V. Applying a voltage above this value(up to +VIN) shuts the regulator
REV : 1.0
2011-09-22
2 www.dt-semi.com

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