LX1673-06CPW Microsemi Analog Mixed Signal Group, LX1673-06CPW Datasheet
LX1673-06CPW
Specifications of LX1673-06CPW
Related parts for LX1673-06CPW
LX1673-06CPW Summary of contents
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... EAO PACKAGE ORDER INFO Plastic TSSOP Switching PW 20-Pin Frequency (kHz) RoHS Compliant / Pb-free 300 LX1673-03CPW 600 LX1673-06CPW 900 LX1673-09CPW Microsemi Integrated Products Division LX1673 D S ATA HEET Two Independently Regulated Outputs Outputs As Low As 0.8V Generated From An Internal 1% Reference Integrated High Current MOSFET ...
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... High Frequency PWM Regulator . , θ A 90°C/W MBIENT JA , θ A 35°C/W MBIENT θ Microsemi Integrated Products Division LX1673 RODUCTION ATA HEET LDGD 1 LDFB LDDIS DGND AGND ACKAGE (Top View) N.C. – No Internal Connection N/U – Not Used RSVD – Do Not Use ...
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... ESCRIPTION 1K Ω 20K resistor and the external capacitor set the time constant for soft-start Ω 100K Microsemi Integrated Products Division LX1673 D S RODUCTION ATA HEET must be in series with this pin. exceeds the UVLO threshold. CC pull down resistor. Ω 80K pull down resistor. ...
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... Static and Dynamic CC I LDVCC T =25 ° 0°C ≤ T ≤ 70°C A 3000pF Load 2 Volt Level All Frequencies LX1673-03 Load = 3000pF LX1673-06 Load = 3000pF LX1673-09 Load = 3000pF V Common Mode Voltage = 1V OS UGBW V I Source = 2mA Sink = 10uA OL Input Offset Voltage < 20mV 0 and 3.5 V Common Mode Voltage ...
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... Threshold DIS Internal Pull down Resistance Threshold LDDIS Internal Pull down Resistance I = 3mA Microsemi Integrated Products Division LX1673 D S RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1673 Min Typ Max 4.0 4.0 4.25 4.5 0 2.5 100 0.4 ...
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... Oscillator LDVCC S FAULT TEMP SS1 DIS PWGD Figure 1 – Block Diagram of PWM Phase LDGD V REF - LDFB +5V LDDIS Figure 2 – LDO Controller Block Diagram Microsemi Integrated Products Division LX1673 RODUCTION ATA HEET I SET Vin (5V) VC1 C IN TDRV L1 ESR C BDRV OUT PGND +5V VCCL +5V VCC 5 ...
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... LDVCC PWGD VC1 TDRV PGND 1 15 LDGD BDRV 2 14 LDFB VCCL + LX1673 LDDIS VCC 4 12 DGND AGND CS DIS SS EA+ EA- EAO Figure 4 – Schematic for 5 Volt only Input Microsemi Integrated Products Division LX1673 D S ATA HEET PWM Vout PWM Vout Page 7 ...
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... NDER OLTAGE OCKOUT At power up, the LX1673 monitors the supply voltage for VCC, VCCL, LDVCC and VC1 (there is no requirement for sequencing the supplies). Before all supplies reach their under- voltage lock-out (UVLO) thresholds, the soft-start (SS) pin is held low to prevent soft-start from beginning, the oscillator is disabled and all MOSFETs are held off. There is an internal delay that will filter out transients less that 1.5µ ...
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... The output voltage will follow the voltage at the SS pin if the required inductor current does not exceed the maximum allowable current for the inductor. Microsemi Integrated Products Division LX1673 RODUCTION ATA ...
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... O D UTPUT ISABLE The LX1673 PWM MOSFET driver outputs are shut off by pulling the disable (DIS) pin above 1.2V. There is a down resistor on this input. The LDO voltage regulator has its own Disable pin (LDDIS) for control of this output voltage. Pulling this pin above 3 V disables the LDO ...
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... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® High Frequency PWM Regulator P RODUCTION current limit is not used connect the VS and VC pins together and to VCC. Do not leave them floating. A floating VS pin will result in operation resembling a hiccup condition. Microsemi Integrated Products Division LX1673 D S ATA HEET Page 11 ...
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... High Frequency PWM Regulator Dim Dim Θ1 *LC solder coverage. Microsemi Integrated Products Division LX1673 RODUCTION ATA HEET M I ILLIMETERS NCHES MIN MAX MIN A 0.80 1.00 0.031 0 0.05 0 0.25 REF 0.010 b 0.23 0.38 0.009 D 5.00 BSC 0.197 1.25 3.25 0.050 E 5.00 BSC ...
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... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2004 Rev 1.0, 3/18/2005 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® High Frequency PWM Regulator P RODUCTION Microsemi Integrated Products Division LX1673 D S ATA HEET Page 13 ...