Linear Technology DC2359A Demo Manual Download Page 5 | Manualshive

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dc2359afb

DEMO MANUAL DC2359A

Quick start proceDure

Figure 7. Measured Output Voltage Ripple

t(1µs/DIV)

DC2359a F07

V

OUT

20mV/DIV

VSW

10V/DIV

f

SW

= 1MHz

V

IN

= 12V

V

OUT

= 5V

I

LOAD

= 2A

L = 3.3µH

C

OUT

= 1x 47µF/6.3V/X5R/1206

20MHz BW LIMIT

V

P-P

= 8.8mV

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Summary of Contents for DC2359A

Page 1: ... profile surface mount components and all ceramic output capacitor solutions The compact 12 lead MSE 5mm 4mm 1mm thermally enhanced package makes LTC3624HMSE an excellent choice for battery powered equipment emergency radio and general pur pose step down power supplies The H Grade version is specified over an operating junction temperature range of 40 C to 150 C typically required for automotive i...

Page 2: ...oltage regula tion output voltage ripple switch node waveform and other parameters Refer to Figure 2 for proper output voltage ripple measurement 7 To select other output voltages use the on board user selectable output voltage jumpers Shutting down LTC3624HMSE by placing RUN pin jumper JP1 to the OFF position or turn off the input power supply Refer to the following table Table 2 for the output v...

Page 3: ...3 dc2359afb DEMO MANUAL DC2359A Figure 2 Scope Probe Placement for Measuring Output Voltage Ripple Figure 1 Proper Measurement Equipment Setup VOUT GND COUT Quick Start Procedure ...

Page 4: ...CURRENT A 0 01 70 EFFICIENCY 75 80 85 90 0 10 1 00 1 10 DC2359a F03 65 60 55 50 95 100 1 2VOUT 1 8VOUT 2 5VOUT 3 3VOUT 5 0VOUT LOAD CURRENT A 0 0 EFFICIENCY 100 95 85 75 65 55 90 80 70 60 50 1 0 1 5 DC2359a F04 2 0 0 5 1 2VOUT 1 8VOUT 2 5VOUT 3 3VOUT 5 0VOUT LOAD CURRENT A 0 0 EFFICIENCY 100 95 85 75 65 55 90 80 70 60 50 1 0 1 5 DC2359a F06 2 0 0 5 1 2VOUT 1 8VOUT 2 5VOUT 3 3VOUT 0 01 0 10 1 00 1 ...

Page 5: ...MANUAL DC2359A Quick Start Procedure Figure 7 Measured Output Voltage Ripple t 1µs DIV DC2359a F07 VOUT 20mV DIV VSW 10V DIV fSW 1MHz VIN 12V VOUT 5V ILOAD 2A L 3 3µH COUT 1x 47µF 6 3V X5R 1206 20MHz BW LIMIT VP P 8 8mV ...

Page 6: ...359A Figure 8 Load Transient Response Quick Start Procedure t 50µs DIV VOUT 200mV DIV IOUT 1A DIV fSW 1MHz VIN 12V VOUT 5V ILOAD 1A TO 2A L 3 3µH COUT 1x 47µF 6 3V X5R 1206 CFF 15pF 20MHz BW LIMIT VP P 219mV 1A TO 2A DC2359a F08 ...

Page 7: ...7 dc2359afb DEMO MANUAL DC2359A Quick Start Procedure Figure 9 Thermal Performance VIN 12V VOUT 5V ILOAD 2A L 3 3µH fSW 1MHz NO FORCED AIRFLOW TA 25 C DC2359a F09 ...

Page 8: ...Ω 1 1 16W VISHAY CRCW0402137KFKED 11 1 R5 RES 0402 84 5kΩ 1 1 16W VISHAY CRCW040284K5FKED 12 2 R7 R12 RES 0402 0Ω JUMPER VISHAY CRCW04020000Z0ED 13 1 R11 RES 0402 1MΩ 5 1 16W VISHAY CRCW04021M00JNED 14 1 U1 IC MONOLITHIC SYNCHRONOUS BUCK REGULATOR LINEAR TECH LTC3624HMSE PBF Additional Demo Board Circuit Components 1 0 C5 CAP 1206 22μF 20 6 3V X5R OPTION TAIYO YUDEN EMK316BJ226ML T OPTION 2 0 C6 C...

Page 9: ...MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC S...

Page 10: ...ATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or us...

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