Datasheet LTM4602 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 6A High Efficiency DC/DC µModule |
| Páginas / Página | 24 / 1 — FEATURES. DESCRIPTION. Complete Switch Mode Power Supply. Wide Input … |
| Formato / tamaño de archivo | PDF / 340 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Complete Switch Mode Power Supply. Wide Input Voltage Range: 4.5V to 20V. 6A DC, 8A Peak Output Current
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LTM4602 6A High Effi ciency DC/DC µModule
FEATURES DESCRIPTION
n
Complete Switch Mode Power Supply
The LTM®4602 is a complete 6A DC/DC step down power n
Wide Input Voltage Range: 4.5V to 20V
supply. Included in the package are the switching control- n
6A DC, 8A Peak Output Current
ler, power FETs, inductor, and all support components. n
0.6V to 5V Output Voltage
Operating over an input voltage range of 4.5V to 20V, the n
1.5% Output Voltage Regulation
LTM4602 supports an output voltage range of 0.6V to 5V, n
Ultrafast Transient Response
set by a single resistor. This high effi ciency design delivers n
Current Mode Control
6A continuous current (8A peak), needing no heat sinks or n
Pb-Free (e4) RoHS Compliant Package with Gold-
airfl ow to meet power specifi cations. Only bulk input and
Pad Finish
output capacitors are needed to fi nish the design. n
Pin Compatible with the LTM4600
The low profi le package (2.8mm) enables utilization of n Up to 92% Effi ciency unused space on the bottom of PC boards for high density n Programmable Soft-Start point of load regulation. High switching frequency and an n Output Overvoltage Protection adaptive on-time current mode architecture enables a very n Optional Short-Circuit Shutdown Timer fast transient response to line and load changes without n See the LTM4602HV for Operation Up to 28VIN sacrifi cing stability. Fault protection features include n Small Footprint, Low Profi le (15mm × 15mm × integrated overvoltage and short circuit protection with 2.8mm) Surface Mount LGA Package a defeatable shutdown timer. A built-in soft-start timer is adjustable with a small capacitor.
APPLICATIONS
The LTM4602 is packaged in a thermally enhanced, compact n Telecom and Networking Equipment (15mm × 15mm) and low profi le (2.8mm) over-molded n Servers Land Grid Array (LGA) package suitable for automated as- n Industrial Equipment sembly by standard surface mount equipment. For the 4.5V n Point of Load Regulation to 28V input range version, refer to the LTM4602HV. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 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.
Effi ciency vs Load Current TYPICAL APPLICATION with 12VIN (FCB = 0)
100
6A μModule
TM
Power Supply with 4.5V to 20V Input
90 80 V V OUT IN V 70 IN VOUT 1.5V 4.5V TO 20V C 6A IN LTM4602 COUT 60 0.8VOUT 50 1.2VOUT VOSET 1.5V 40 OUT PGND SGND R 1.8V SET EFFICIENCY (%) OUT 66.5k 30 2.5VOUT 3.3VOUT 20 3.3V 4602 TA01a OUT (950kHz)* 10 *950kHz INSTEAD OF 1.3MHz INCREASES 3.3V EFFICIENCY 2% 0 0 2 4 6 8 LOAD CURRENT (A) 4602 TA01b 4602fa 1
FEATURES DESCRIPTION
n
Complete Switch Mode Power Supply
The LTM®4602 is a complete 6A DC/DC step down power n
Wide Input Voltage Range: 4.5V to 20V
supply. Included in the package are the switching control- n
6A DC, 8A Peak Output Current
ler, power FETs, inductor, and all support components. n
0.6V to 5V Output Voltage
Operating over an input voltage range of 4.5V to 20V, the n
1.5% Output Voltage Regulation
LTM4602 supports an output voltage range of 0.6V to 5V, n
Ultrafast Transient Response
set by a single resistor. This high effi ciency design delivers n
Current Mode Control
6A continuous current (8A peak), needing no heat sinks or n
Pb-Free (e4) RoHS Compliant Package with Gold-
airfl ow to meet power specifi cations. Only bulk input and
Pad Finish
output capacitors are needed to fi nish the design. n
Pin Compatible with the LTM4600
The low profi le package (2.8mm) enables utilization of n Up to 92% Effi ciency unused space on the bottom of PC boards for high density n Programmable Soft-Start point of load regulation. High switching frequency and an n Output Overvoltage Protection adaptive on-time current mode architecture enables a very n Optional Short-Circuit Shutdown Timer fast transient response to line and load changes without n See the LTM4602HV for Operation Up to 28VIN sacrifi cing stability. Fault protection features include n Small Footprint, Low Profi le (15mm × 15mm × integrated overvoltage and short circuit protection with 2.8mm) Surface Mount LGA Package a defeatable shutdown timer. A built-in soft-start timer is adjustable with a small capacitor.
APPLICATIONS
The LTM4602 is packaged in a thermally enhanced, compact n Telecom and Networking Equipment (15mm × 15mm) and low profi le (2.8mm) over-molded n Servers Land Grid Array (LGA) package suitable for automated as- n Industrial Equipment sembly by standard surface mount equipment. For the 4.5V n Point of Load Regulation to 28V input range version, refer to the LTM4602HV. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 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.
Effi ciency vs Load Current TYPICAL APPLICATION with 12VIN (FCB = 0)
100
6A μModule
TM
Power Supply with 4.5V to 20V Input
90 80 V V OUT IN V 70 IN VOUT 1.5V 4.5V TO 20V C 6A IN LTM4602 COUT 60 0.8VOUT 50 1.2VOUT VOSET 1.5V 40 OUT PGND SGND R 1.8V SET EFFICIENCY (%) OUT 66.5k 30 2.5VOUT 3.3VOUT 20 3.3V 4602 TA01a OUT (950kHz)* 10 *950kHz INSTEAD OF 1.3MHz INCREASES 3.3V EFFICIENCY 2% 0 0 2 4 6 8 LOAD CURRENT (A) 4602 TA01b 4602fa 1