Datasheet LTC7150S, LTC7150S-4 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 20V, 20A Synchronous Step-Down Regulator |
| Páginas / Página | 22 / 1 — FEATURES. DESCRIPTION. AEC-Q100 Qualified for Automotive Applications. … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 2.4 Mb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. AEC-Q100 Qualified for Automotive Applications. Silent Switcher®2 Architecture for Low EMI
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LTC7150S/LTC7150S-4 20V, 20A Synchronous Step-Down Regulator
FEATURES DESCRIPTION
n
AEC-Q100 Qualified for Automotive Applications
The LTC®7150S is a high efficiency monolithic synchronous n
Silent Switcher®2 Architecture for Low EMI
buck regulator capable of delivering 20A to the load. It uses n
VIN Range: 3.1V to 20V
a phase lockable controlled on-time constant frequency, cur- n
VOUT Range: 0.6V to 5.5V
rent mode architecture. PolyPhase operation allows multiple n
Differential VOUT Remote Sense
LTC7150S regulators to run out-of-phase, which reduces n
Adjustable Frequency: 400kHz to 3MHz
the amount of input and output capacitors required. The n PolyPhase® Operation: Up to 12 Phases operating supply voltage range is from 3.1V to 20V. n Output Tracking and Soft-Start The operating frequency is programmable from 400kHz to n Reference Accuracy: 0.6V ±1% Over Temperature 3MHz with an external resistor. The high frequency capability n Current Mode Operation for Excellent Line and Load allows the use of physically smaller inductor and capaci- Transient Response tor sizes. For switching noise sensitive applications, the n Accurate 1.2V Run Pin Threshold LTC7150S can be external y synchronized from 400kHz n Supports Forced Continuous/Discontinuous Modes to 3MHz. The PHMODE pin allows the user control of the n 42-Lead 6mm × 5mm × 1.3mm BGA Package phase of the outgoing clock signal. The unique constant frequency/controlled on-time architecture is ideal for high
APPLICATIONS
step-down ratio applications that operate at high frequencies while demanding fast transient response. The LTC7150S n Server Power Applications uses second generation Silent Switcher technology includ- n Distributed Power Systems ing integrated bypass capacitors to deliver a highly efficient n Point of Load Supply for ASIC, FPGA, DSP, µP, etc. solution at high frequencies with excellent EMI performance. All registered trademarks and trademarks are the property of their respective owners.
PART NUMBER TJMAX
LTC7150S 125°C LTC7150S-4 150°C
TYPICAL APPLICATION 12VIN to 1.2VOUT Application Efficiency and Power Loss
100 12 0.25µH VIN V SV OUT IN = 5V RUN SW 3.1V TO 20V 1.2V/20A PVIN 95 10 SVIN 10k + POWER LOSS (W) 22µF LTC7150S FB 100µF 90 8 ×2 ×2 330µF PHMODE 10k – 85 6 TRACK/SS VOUT CLKOUT PGOOD EFFICIENCY (%) INTV MODE/SYNC 80 4 CC SGND 4.7µF RT ITH 75 2 70 0 162k 10k 0 4 8 12 16 20 IOUT (A) 1nF 22pF 7150S TA01b 7150S TA01a Rev. B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Applications Package Photo Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
AEC-Q100 Qualified for Automotive Applications
The LTC®7150S is a high efficiency monolithic synchronous n
Silent Switcher®2 Architecture for Low EMI
buck regulator capable of delivering 20A to the load. It uses n
VIN Range: 3.1V to 20V
a phase lockable controlled on-time constant frequency, cur- n
VOUT Range: 0.6V to 5.5V
rent mode architecture. PolyPhase operation allows multiple n
Differential VOUT Remote Sense
LTC7150S regulators to run out-of-phase, which reduces n
Adjustable Frequency: 400kHz to 3MHz
the amount of input and output capacitors required. The n PolyPhase® Operation: Up to 12 Phases operating supply voltage range is from 3.1V to 20V. n Output Tracking and Soft-Start The operating frequency is programmable from 400kHz to n Reference Accuracy: 0.6V ±1% Over Temperature 3MHz with an external resistor. The high frequency capability n Current Mode Operation for Excellent Line and Load allows the use of physically smaller inductor and capaci- Transient Response tor sizes. For switching noise sensitive applications, the n Accurate 1.2V Run Pin Threshold LTC7150S can be external y synchronized from 400kHz n Supports Forced Continuous/Discontinuous Modes to 3MHz. The PHMODE pin allows the user control of the n 42-Lead 6mm × 5mm × 1.3mm BGA Package phase of the outgoing clock signal. The unique constant frequency/controlled on-time architecture is ideal for high
APPLICATIONS
step-down ratio applications that operate at high frequencies while demanding fast transient response. The LTC7150S n Server Power Applications uses second generation Silent Switcher technology includ- n Distributed Power Systems ing integrated bypass capacitors to deliver a highly efficient n Point of Load Supply for ASIC, FPGA, DSP, µP, etc. solution at high frequencies with excellent EMI performance. All registered trademarks and trademarks are the property of their respective owners.
PART NUMBER TJMAX
LTC7150S 125°C LTC7150S-4 150°C
TYPICAL APPLICATION 12VIN to 1.2VOUT Application Efficiency and Power Loss
100 12 0.25µH VIN V SV OUT IN = 5V RUN SW 3.1V TO 20V 1.2V/20A PVIN 95 10 SVIN 10k + POWER LOSS (W) 22µF LTC7150S FB 100µF 90 8 ×2 ×2 330µF PHMODE 10k – 85 6 TRACK/SS VOUT CLKOUT PGOOD EFFICIENCY (%) INTV MODE/SYNC 80 4 CC SGND 4.7µF RT ITH 75 2 70 0 162k 10k 0 4 8 12 16 20 IOUT (A) 1nF 22pF 7150S TA01b 7150S TA01a Rev. B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Applications Package Photo Revision History Typical Application Related Parts