Datasheet LTM4662 (Analog Devices)
| Hersteller | Analog Devices |
| Beschreibung | Dual 15A or Single 30A DC/DC μModule Regulator |
| Seiten / Seite | 36 / 1 — FEATURES. DESCRIPTION. Dual 15A or Single 30A Output. Wide Input Voltage … |
| Revision | A |
| Dateiformat / Größe | PDF / 1.4 Mb |
| Dokumentensprache | Englisch |
FEATURES. DESCRIPTION. Dual 15A or Single 30A Output. Wide Input Voltage Range: 4.5V to 20V. 2.375VMIN with CPWR Bias
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LTM4662 Dual 15A or Single 30A DC/DC µModule Regulator
FEATURES DESCRIPTION
n
Dual 15A or Single 30A Output
The LTM®4662 is a complete dual 15A output switching n
Wide Input Voltage Range: 4.5V to 20V
mode DC/DC power supply. Included in the package are n
2.375VMIN with CPWR Bias
the switching controller, power FETs, inductors, and all n
Output Voltage Range: 0.6V to 5.5V
supporting components. Operating from an input voltage n
±1.5% Maximum Total DC Output Error
range of 4.5V to 20V, the LTM4662 supports two outputs n
Multiphase Current Sharing
each with an output voltage range of 0.6V to 5.5V, set by n Differential Remote Sense Amplifier, Each Channel external resistors. Its high efficiency design delivers up to n Current Mode Control/Fast Transient Response 15A continuous current for each output. Only a few input n Up to 96% Efficiency and output capacitors are needed. n Adjustable Switching Frequency (250kHz to 1MHz) The device supports frequency synchronization, multiphase n Frequency Synchronization operation, high efficiency light load operation and output n Overcurrent Foldback Protection voltage tracking for supply rail sequencing and has an n Output Overvoltage Protection onboard temperature diode per channel for device tempera- n Internal or External Compensation ture monitoring. High switching frequency and a current n Built-In Temperature Monitor Diode mode architecture enable a very fast transient response to n SnPb or RoHS Compliant Finish line and load changes without sacrificing stability. n Thermally Enhanced (11.25mm × 15mm × 5.74mm) Fault protection features include overvoltage and overcur- BGA Package n rent protection. The power module is offered in a small Pin-Compatible with the LTM4646 footprint and thermally enhanced 11.25mm × 15mm ×
APPLICATIONS
5.74mm BGA package. The LTM4662 is available with SnPb or RoHS compliant terminal finish. n Point-of-Load Power Supplies All registered trademarks and trademarks are the property of their respective owners. n Telecom and Networking Equipment n Industrial and Medical Equipment
TYPICAL APPLICATION
VIN
Efficiency,
4.5V
12V to 0.9V, 1.2V at 15A Each
TO 20V 10μF ×4 130k 95 VIN1 VIN2 CPWR INTVCC VRNG RUN1 MODE_PLLIN RUN2 DRV 90 CC V 4.7µF OUT1 VOUT2 0.9V VOUT1 V AT 15A OUT2 1.2V 85 V AT 15A OUTS1 VOUTS2 VFB1 LTM4662 VFB2 100µF 80 100μF 121k ×4 EFFICIENCY (%) 60.4k 30.1k ×4 V – – OUTS1 VOUTS2 75 COMP1A COMP2A 12VIN TO 0.9V EFF, 300kHz 12V COMP1B COMP2B IN TO 1.2V EFF, 350kHz 70 TRACK/SS1 TRACK/SS2 PINS NOT USED IN THIS CIRCUIT: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.1µF FREQ SGND GND PGOOD1, PGOOD2, EXTV 0.1µF CC, LOAD CURRENT (A) 4662 TA01a TEMP1+, TEMP1–, TEMP2+, TEMP2– 4662 TA01b 115k PHASMD, CLKOUT, SW1, SW2 Rev. A Document Feedback For more information www.analog.com 1 Document Outline Operation Applications Information Package Description Package Photo Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photo Design Resources Related Parts
FEATURES DESCRIPTION
n
Dual 15A or Single 30A Output
The LTM®4662 is a complete dual 15A output switching n
Wide Input Voltage Range: 4.5V to 20V
mode DC/DC power supply. Included in the package are n
2.375VMIN with CPWR Bias
the switching controller, power FETs, inductors, and all n
Output Voltage Range: 0.6V to 5.5V
supporting components. Operating from an input voltage n
±1.5% Maximum Total DC Output Error
range of 4.5V to 20V, the LTM4662 supports two outputs n
Multiphase Current Sharing
each with an output voltage range of 0.6V to 5.5V, set by n Differential Remote Sense Amplifier, Each Channel external resistors. Its high efficiency design delivers up to n Current Mode Control/Fast Transient Response 15A continuous current for each output. Only a few input n Up to 96% Efficiency and output capacitors are needed. n Adjustable Switching Frequency (250kHz to 1MHz) The device supports frequency synchronization, multiphase n Frequency Synchronization operation, high efficiency light load operation and output n Overcurrent Foldback Protection voltage tracking for supply rail sequencing and has an n Output Overvoltage Protection onboard temperature diode per channel for device tempera- n Internal or External Compensation ture monitoring. High switching frequency and a current n Built-In Temperature Monitor Diode mode architecture enable a very fast transient response to n SnPb or RoHS Compliant Finish line and load changes without sacrificing stability. n Thermally Enhanced (11.25mm × 15mm × 5.74mm) Fault protection features include overvoltage and overcur- BGA Package n rent protection. The power module is offered in a small Pin-Compatible with the LTM4646 footprint and thermally enhanced 11.25mm × 15mm ×
APPLICATIONS
5.74mm BGA package. The LTM4662 is available with SnPb or RoHS compliant terminal finish. n Point-of-Load Power Supplies All registered trademarks and trademarks are the property of their respective owners. n Telecom and Networking Equipment n Industrial and Medical Equipment
TYPICAL APPLICATION
VIN
Efficiency,
4.5V
12V to 0.9V, 1.2V at 15A Each
TO 20V 10μF ×4 130k 95 VIN1 VIN2 CPWR INTVCC VRNG RUN1 MODE_PLLIN RUN2 DRV 90 CC V 4.7µF OUT1 VOUT2 0.9V VOUT1 V AT 15A OUT2 1.2V 85 V AT 15A OUTS1 VOUTS2 VFB1 LTM4662 VFB2 100µF 80 100μF 121k ×4 EFFICIENCY (%) 60.4k 30.1k ×4 V – – OUTS1 VOUTS2 75 COMP1A COMP2A 12VIN TO 0.9V EFF, 300kHz 12V COMP1B COMP2B IN TO 1.2V EFF, 350kHz 70 TRACK/SS1 TRACK/SS2 PINS NOT USED IN THIS CIRCUIT: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.1µF FREQ SGND GND PGOOD1, PGOOD2, EXTV 0.1µF CC, LOAD CURRENT (A) 4662 TA01a TEMP1+, TEMP1–, TEMP2+, TEMP2– 4662 TA01b 115k PHASMD, CLKOUT, SW1, SW2 Rev. A Document Feedback For more information www.analog.com 1 Document Outline Operation Applications Information Package Description Package Photo Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photo Design Resources Related Parts