LT8642-1 | 18V, 10A Synchronous Step-Down Silent Switcher
Analog Devices Inc.
Demonstration circuit 3162A is a 18V, 10A synchronous step-down Silent Switcher® with spread spectrum frequency modulation featuring the LT8642-1. The demo board is designed for 1.2V output from a 2.8V to 18V input. The LT8642-1 is a compact, low emission, high efficiency, and high speed synchronous monolithic stepdown switching regulator. Special Silent Switcher architecture minimizes EMI emissions. Selectable spread spectrum mode can further improve EMI performance. Fast minimum on-time of 20ns enables high VIN to low VOUT conversion at high frequency.
The LT8642-1 switching frequency can be programmed either via a resistor or external clock over a 200kHz to 3MHz range. The default frequency of demo circuit 3162A is 2MHz. The LT8642-1 SYNC/MODE pin on the demo board is grounded (JP1 at BURST position) by default for low ripple Burst Mode® operation. Spread spectrum mode and forced continuous mode can be selected respectively by moving JP1 shunt. To synchronize to an external clock, move JP1 to FCM/SYNC and apply the external clock to the SYNC terminal.
The LT8642-1 data sheet gives a complete description of the part, operation, and application information. The data sheet must be read in conjunction with this demo manual for demo circuit 3162A. The LT8642-1 is assembled in a 3mm × 4mm LQFN package with exposed pads for low thermal resistance. The layout recommendations for low EMI operation and maximum thermal performance are available in the data sheet section Low EMI PCB Layout and Thermal Considerations.
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-DC3162A-ND | 3 | 1 | $79.87 | $79.87 | $79.87 | $79.87 | $79.87 | $79.87 |
| Analog Devices Inc | DC3162A | 0 | $66.88 | $66.88 | $66.88 | $66.88 | $66.88 | $66.88 | |
| element14 APAC | DC3162A | 5 | 1 | * $73.91 | * $73.91 | * $73.91 | * $73.91 | * $73.91 | * $73.91 |
| Farnell | DC3162A | 5 | 1 | * $71.54 | * $71.54 | * $71.54 | * $71.54 | * $71.54 | * $71.54 |
| Mouser Electronics | 584-DC3162A | 13 | 1 | $69.56 | $69.56 | $69.56 | $69.56 | $69.56 | $69.56 |
| Newark | DC3162A | 5 | 1 | $80.26 | $80.26 | $80.26 | $80.26 | $80.26 | $80.26 |
| Verical Marketplace | DC3162A | 10 | 1 | $76.43 | $76.43 | $76.43 | $76.43 | $76.43 | $76.43 |
Manufacturer Page
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-HMC409LP4ETR-ND | 0 | 500 | $28.40 | $24.80 | $23.55 | $21.84 | $20.10 | $20.10 |
| Analog Devices Inc | HMC409LP4E | 0 | $25.06 | $23.13 | $21.20 | $19.60 | $19.28 | $19.28 | |
| Arrow North American Components | HMC409LP4E | 0 | 35 | ||||||
| element14 APAC | HMC409LP4E | 19 | 1 | * $32.34 | * $28.24 | * $26.82 | * $24.87 | * $23.71 | * $23.71 |
| Farnell | HMC409LP4E | 19 | 1 | * $31.86 | * $27.83 | * $26.43 | * $24.43 | * $23.35 | * $23.35 |
| Mouser Electronics | 584-HMC409LP4E | 35 | 1 | $30.14 | $27.06 | $24.97 | $21.79 | $19.10 | $18.61 |
| Newark | HMC409LP4E | 20 | 1 | $28.40 | $24.81 | $22.67 | $22.67 | $22.67 | $22.67 |
| Verical Marketplace | HMC409LP4E | 2760 | 46 | $15.36 | $15.36 | $15.36 | $15.36 | ||
| Win Source | HMC409LP4E | 2940 | 6 | $15.36 | $12.71 | $12.71 | $12.71 | $12.71 |
EVAL-ADXRS623Z
Analog Devices Inc.
The ADXRS623 is a complete angular rate sensor (gyroscope)that uses the Analog Devices, Inc. surface-micromachiningprocess to create a functionally complete and low cost angularrate sensor integrated with all required electronics on one chip.The manufacturing technique for this device is the same highvolume BiMOS process used for high reliability automotiveairbag accelerometers.The ADXRS623 is an automotive grade gyroscope. Automotive grade gyroscopes have more extensive guaranteed min/max specifications due to automotive testing.The output signal, RATEOUT (1B, 2A), is a voltageproportional to the angular rate about the axis that is normal tothe top surface of the package. The output is ratiometric withrespect to a provided reference supply. A single externalresistor between SUMJ and RATEOUT can be used to lowerthe scale factor. An external capacitor sets the bandwidth. Otherexternal capacitors are required for operation.A temperature output is provided for compensation techniques.Two digital self-test inputs electromechanically excite thesensor to test proper operation of both the sensor and the signalconditioning circuits. The ADXRS623 is available in a 7 mm ×7 mm × 3 mm BGA chip scale package.APPLICATIONS Inertial measurement units Platform stabilization Robotics
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | EVAL-ADXRS623Z-ND | 1 | 1 | $76.75 | $76.75 | $76.75 | $76.75 | $76.75 | $76.75 |
| Analog Devices Inc | EVAL-ADXRS623Z | 0 | $66.12 | $66.12 | $66.12 | $66.12 | $66.12 | $66.12 | |
| Arrow North American Components | EVAL-ADXRS623Z | 0 | 1 | $63.81 | $63.17 | $61.92 | $61.30 | $59.48 | $58.88 |
| element14 APAC | EVAL-ADXRS623Z | 3 | 1 | * $77.33 | * $77.33 | * $77.33 | * $77.33 | * $77.33 | * $77.33 |
| Farnell | EVAL-ADXRS623Z | 3 | 1 | * $64.43 | * $64.43 | * $64.43 | * $64.43 | * $64.43 | * $64.43 |
| Mouser Electronics | 584-EVAL-ADXRS623Z | 8 | 1 | $68.44 | $68.44 | $68.44 | $68.44 | $68.44 | $68.44 |
| Newark | EVAL-ADXRS623Z | 0 | $25.00 | $25.00 | $25.00 | $25.00 | $25.00 | $25.00 | |
| Verical Marketplace | EVAL-ADXRS623Z | 10 | 1 | $65.43 | $68.67 | $66.81 | $0.00 | $0.00 | $0.00 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | ADN4668ARUZ-REEL7CT-ND | 1183 | 1 | $3.42 | $2.57 | $2.36 | $2.12 | $1.89 | $1.80 |
| Analog Devices Inc | ADN4668ARUZ | 0 | $3.76 | $3.38 | $3.20 | $2.77 | $2.01 | $2.01 | |
| Arrow North American Components | ADN4668ARUZ | 132 | 288 | $1.60 | $1.60 | $1.60 | $1.60 | $1.56 | $1.56 |
| element14 APAC | ADN4668ARUZ | 37 | 1 | * $5.46 | * $3.55 | * $3.55 | * $2.51 | * $2.18 | * $2.18 |
| Farnell | ADN4668ARUZ | 48 | 1 | * $5.39 | * $3.51 | * $3.51 | * $2.25 | * $2.14 | * $2.14 |
| Mouser Electronics | 584-ADN4668ARUZ | 399 | 1 | $3.01 | $2.69 | $2.31 | $2.21 | $1.55 | $1.55 |
| Newark | ADN4668ARUZ | 48 | 1 | $4.79 | $3.12 | $2.10 | $2.10 | $2.00 | $2.00 |
| Win Source | ADN4668ARUZ | 2000 | 3 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-DC3018A-ND | 3 | 1 | $165.35 | $165.35 | $165.35 | $165.35 | $165.35 | $165.35 |
| Analog Devices Inc | DC3018A | 0 | $141.24 | $141.24 | $141.24 | $141.24 | $141.24 | $141.24 | |
| element14 APAC | DC3018A | 2 | 1 | * $184.15 | * $184.15 | * $184.15 | * $184.15 | * $184.15 | * $184.15 |
| Farnell | DC3018A | 2 | 1 | * $151.72 | * $151.72 | * $151.72 | * $151.72 | * $151.72 | * $151.72 |
| Mouser Electronics | 584-DC3018A | 3 | 1 | $146.16 | $146.16 | $146.16 | $146.16 | $146.16 | $146.16 |
| Newark | DC3018A | 2 | 1 | $143.84 | $143.84 | $143.84 | $143.84 | $143.84 | $143.84 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-ADP2301AUJZ-R7CT-ND | 0 | 1 | $2.66 | $1.98 | $1.81 | $1.62 | $1.47 | $6,000.00 |
| Analog Devices Inc | ADP2301AUJZ-R7 | 0 | $2.84 | $2.55 | $2.41 | $2.09 | $1.52 | $1.52 | |
| Arrow North American Components | ADP2301AUJZ-R7 | 0 | 3000 | $1.21 | |||||
| element14 APAC | ADP2301AUJZ-R7 | 220 | 1 | * $4.45 | * $2.88 | * $2.45 | * $1.98 | * $1.75 | * $1.75 |
| Farnell | ADP2301AUJZ-R7 | 380 | 100 | * $0.00 | * $0.00 | * $0.00 | * $2.06 | * $1.66 | * $1.66 |
| Mouser Electronics | 584-ADP2301AUJZ-R7 | 187 | 1 | $2.76 | $2.49 | $2.34 | $1.99 | $1.36 | $1.36 |
| Newark | ADP2301AUJZ-R7 | 627 | 1 | $1.83 | $1.67 | $1.55 | $1.55 | $1.55 | $1.55 |
| Verical Marketplace | ADP2301AUJZ-R7 | 8253 | 5 | $2.38 | $2.38 | $2.38 | $2.38 | $2.38 | |
| Win Source | ADP2301AUJZ-R7 | 189439 | 35 | $2.32 | $1.88 | $1.60 | $1.60 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-ADN8831ACPZ-REEL7CT-ND | 7250 | 1 | $15.66 | $12.40 | $25.00 | $11.05 | $9.67 | $9.69 |
| Analog Devices Inc | ADN8831ACPZ-REEL7 | 0 | $16.07 | $14.77 | $14.16 | $12.47 | $11.10 | $11.10 | |
| Arrow North American Components | ADN8831ACPZ-REEL7 | 0 | 1500 | $9.07 | |||||
| element14 APAC | ADN8831ACPZ-REEL7 | 675 | 1 | * $18.97 | * $13.32 | * $11.83 | * $10.28 | * $10.08 | * $10.08 |
| Farnell | ADN8831ACPZ-REEL7 | 675 | 10 | * $13.15 | * $11.70 | * $10.18 | * $10.17 | * $10.16 | |
| Mouser Electronics | 584-ADN8831ACPZ-R7 | 1302 | 1 | $13.50 | $12.25 | $11.08 | $9.97 | $8.37 | $8.37 |
| Newark | ADN8831ACPZ-REEL7 | 115 | 1 | $11.95 | $11.03 | $9.56 | $9.25 | $9.25 | $9.25 |
| Verical Marketplace | ADN8831ACPZ-REEL7 | 287 | 1 | $12.30 | $10.75 | $10.31 | $9.98 | $9.64 | $9.64 |
| Win Source | ADN8831ACPZ-REEL7 | 32370 | 5 | $77.33 | $64.00 | $64.00 | $64.00 | $64.00 | $64.00 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | AD9826KRSZRLCT-ND | 0 | 1 | $12.67 | $11.65 | $11.65 | $9.84 | $8.75 | $8.75 |
| Analog Devices Inc | AD9826KRSZRL | 105 | 1 | $16.00 | $14.71 | $14.10 | $12.42 | $11.05 | $11.05 |
| Arrow North American Components | AD9826KRSZRL | 1500 | 1500 | $7.66 | |||||
| element14 APAC | AD9826KRSZRL | 6 | 10 | * $18.54 | * $18.16 | * $17.79 | * $17.03 | * $17.03 | |
| Farnell | AD9826KRSZRL | 47 | 10 | * $12.74 | * $11.56 | * $11.22 | * $10.89 | * $10.55 | |
| Mouser Electronics | 584-AD9826KRSZR | 0 | 1500 | $7.58 | |||||
| Newark | AD9826KRSZRL | 32 | 1 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Verical Marketplace | AD9826KRSZRL | 870 | 1 | $11.90 | $11.00 | $10.80 | $9.20 | $8.10 | $8.10 |
| Win Source | AD9826KRSZRL | 23500 | 4 | $12.06 | $9.98 | $9.98 | $9.98 | $9.98 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 505-ADP170AUJZ-1.2-R7CT-ND | 2207 | 1 | $1.32 | $0.96 | $0.87 | $0.77 | $0.50 | $9,000.00 |
| Analog Devices Inc | ADP170AUJZ-1.2-R7 | 0 | $1.61 | $1.44 | $1.37 | $1.12 | $0.73 | $0.73 | |
| Arrow North American Components | ADP170AUJZ-1.2-R7 | 309 | 1 | $1.30 | $0.95 | $0.86 | $0.77 | $0.49 | $0.49 |
| element14 APAC | ADP170AUJZ-1.2-R7 | 3011 | 100 | * $0.00 | * $0.00 | * $0.00 | * $1.07 | * $0.85 | * $0.77 |
| Farnell | ADP170AUJZ-1.2-R7 | 3011 | 1 | * $2.46 | * $1.57 | * $1.38 | * $1.10 | * $0.96 | * $0.96 |
| Mouser Electronics | 584-ADP170AUJZ-1.2R7 | 3997 | 1 | $1.13 | $0.96 | $0.96 | $0.74 | $0.49 | $0.49 |
| Newark | ADP170AUJZ-1.2-R7 | 67 | 1 | $2.09 | $1.33 | $1.05 | $0.93 | $0.93 | $0.93 |
| Verical Marketplace | ADP170AUJZ-1.2-R7 | 309 | 10 | $0.00 | $0.00 | $0.00 | $0.00 | $0.46 | |
| Win Source | ADP170AUJZ-1.2-R7 | 49580 | 7 |
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
|---|---|---|---|---|---|---|---|---|---|
| DigiKey | ADP162AUJZ-2.8-R7CT-ND | 5323 | 1 | $1.32 | $0.96 | $0.87 | $0.77 | $0.56 | $9,000.00 |
| Analog Devices Inc | ADP162AUJZ-2.8-R7 | 583 | 1 | $1.61 | $1.44 | $1.37 | $1.12 | $0.73 | $0.73 |
| Arrow North American Components | ADP162AUJZ-2.8-R7 | 0 | 3000 | $0.78 | |||||
| element14 APAC | ADP162AUJZ-2.8-R7 | 5968 | 100 | * $0.00 | * $0.00 | * $0.00 | * $1.07 | * $0.85 | * $0.77 |
| Farnell | ADP162AUJZ-2.8-R7 | 5968 | 100 | * $0.00 | * $0.00 | * $0.00 | * $1.09 | * $0.87 | * $0.87 |
| Mouser Electronics | 584-ADP162AUJZ-2.8R7 | 6 | 1 | $1.44 | $1.30 | $1.23 | $1.01 | $0.66 | $0.62 |
| Newark | ADP162AUJZ-2.8-R7 | 5990 | 1 | $2.24 | $1.30 | $1.04 | $0.93 | $0.93 | $0.93 |
| Verical Marketplace | ADP162AUJZ-2.8-R7 | 3000 | 3000 | $0.57 | |||||
| Win Source | ADP162AUJZ-2.8-R7 | 59000 | 60 |