Datasheet LTM4602HV (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 6A, 28VIN High Efficiency DC/DC µModule |
| 页数 / 页 | 24 / 1 — FEATURES. DESCRIPTIO. Complete Switch Mode Power Supply. Wide Input … |
| 文件格式/大小 | PDF / 337 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTIO. Complete Switch Mode Power Supply. Wide Input Voltage Range: 4.5V to 28V
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LTM4602HV 6A, 28VIN High Effi ciency DC/DC µModule
U FEATURES DESCRIPTIO
■
Complete Switch Mode Power Supply
The LTM®4602HV is a complete 6A, DC/DC step down ■
Wide Input Voltage Range: 4.5V to 28V
power supply with up to 28V input operation. Included ■
6A DC, Typical 8A Peak Output Current
in the package are the switching controller, power FETs, ■
0.6V to 5V Output Voltage
inductor, and all support components. Operating over ■
1.5% Output Voltage Regulation
an input voltage range of 4.5V to 28V, the LTM4602HV ■
Ultrafast Transient Response
supports an output voltage range of 0.6V to 5V, set by ■
Parallel µModule™ DC/DC Converters
a single resistor. This high effi ciency design delivers 6A ■
Current Mode Control
continuous current (8A peak), needing no heat sinks or ■ Pin Compatible with the LTM4600 and LTM4602 airfl ow to meet power specifi cations. Only bulk input and ■ Up to 92% Effi ciency output capacitors are needed to fi nish the design. ■ Programmable Soft-Start The low profi le package (2.8mm) enables utilization of ■ Output Overvoltage Protection unused space on the bottom of PC boards for high density ■ Optional Short-Circuit Shutdown Timer point of load regulation. High switching frequency and an ■ Pb-Free (e4) RoHS Compliant Package with Gold-Pad adaptive on-time current mode architecture enables a very Finish fast transient response to line and load changes without ■ Small Footprint, Low Profi le (15mm × 15mm × sacrifi cing stability. Fault protection features include 2.8mm) LGA Package integrated overvoltage and short circuit protection with
U
a defeatable shutdown timer. A built-in soft-start timer is
APPLICATIO S
adjustable with a small capacitor. ■ Telecom and Networking Equipment The LTM4602HV is packaged in a thermally enhanced, com- ■ Servers pact (15mm × 15mm) and low profi le (2.8mm) over-molded ■ Industrial Equipment Land Grid Array (LGA) package suitable for automated ■ Point of Load Regulation assembly by standard surface mount equipment. For the , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 4.5V to 20V input range version, refer to the LTM4602. µModule is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
U TYPICAL APPLICATIO Effi ciency vs Load Current with 24VIN (FCB = 0)
90 80
6A µModule Power Supply with 4.5V to 28V Input
70 60 VIN VOUT 4.5V TO 28V V 50 IN VOUT 2.5V ABS MAX C 6A IN LTM4602HV COUT 40 EFFICIENCY (%) 1.2V 30 OUT VOSET 1.5VOUT PGND SGND 20 1.8VOUT 31.6k 2.5VOUT 10 3.3VOUT 3.3VOUT (1MHz) 4602HV TA01a 0 0 1 2 3 4 5 6 LOAD CURRENT (A) 4602HV G03 4602hvf 1
U FEATURES DESCRIPTIO
■
Complete Switch Mode Power Supply
The LTM®4602HV is a complete 6A, DC/DC step down ■
Wide Input Voltage Range: 4.5V to 28V
power supply with up to 28V input operation. Included ■
6A DC, Typical 8A Peak Output Current
in the package are the switching controller, power FETs, ■
0.6V to 5V Output Voltage
inductor, and all support components. Operating over ■
1.5% Output Voltage Regulation
an input voltage range of 4.5V to 28V, the LTM4602HV ■
Ultrafast Transient Response
supports an output voltage range of 0.6V to 5V, set by ■
Parallel µModule™ DC/DC Converters
a single resistor. This high effi ciency design delivers 6A ■
Current Mode Control
continuous current (8A peak), needing no heat sinks or ■ Pin Compatible with the LTM4600 and LTM4602 airfl ow to meet power specifi cations. Only bulk input and ■ Up to 92% Effi ciency output capacitors are needed to fi nish the design. ■ Programmable Soft-Start The low profi le package (2.8mm) enables utilization of ■ Output Overvoltage Protection unused space on the bottom of PC boards for high density ■ Optional Short-Circuit Shutdown Timer point of load regulation. High switching frequency and an ■ Pb-Free (e4) RoHS Compliant Package with Gold-Pad adaptive on-time current mode architecture enables a very Finish fast transient response to line and load changes without ■ Small Footprint, Low Profi le (15mm × 15mm × sacrifi cing stability. Fault protection features include 2.8mm) LGA Package integrated overvoltage and short circuit protection with
U
a defeatable shutdown timer. A built-in soft-start timer is
APPLICATIO S
adjustable with a small capacitor. ■ Telecom and Networking Equipment The LTM4602HV is packaged in a thermally enhanced, com- ■ Servers pact (15mm × 15mm) and low profi le (2.8mm) over-molded ■ Industrial Equipment Land Grid Array (LGA) package suitable for automated ■ Point of Load Regulation assembly by standard surface mount equipment. For the , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 4.5V to 20V input range version, refer to the LTM4602. µModule is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
U TYPICAL APPLICATIO Effi ciency vs Load Current with 24VIN (FCB = 0)
90 80
6A µModule Power Supply with 4.5V to 28V Input
70 60 VIN VOUT 4.5V TO 28V V 50 IN VOUT 2.5V ABS MAX C 6A IN LTM4602HV COUT 40 EFFICIENCY (%) 1.2V 30 OUT VOSET 1.5VOUT PGND SGND 20 1.8VOUT 31.6k 2.5VOUT 10 3.3VOUT 3.3VOUT (1MHz) 4602HV TA01a 0 0 1 2 3 4 5 6 LOAD CURRENT (A) 4602HV G03 4602hvf 1