POWER

LGA80D Series

Dual O/P Non-isolated 80 A Digital DC/DC Converter

Total Current:

80 A (single)

40 A (dual)

Input Voltage: 7.5 - 14 Vdc

Variable Output: 0.6 - 5.2 V

SPECIAL FEATURES

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Two-phase design

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Dual or single output configuration

possible

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High efficiency up to 95.5%

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Small size 1” x 0.5” x 0.48” (LxWxH)

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Supports PMBus

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No minimum load requirement

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Wide operating temperature range

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Exceptional power density

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Automatic loop compensation

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Excellent transient response

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Analog or digital control

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IPC9592B compliant

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Tape and reel packaging

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Reflow compatible

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Possible to stack up to 8 phases for

320 A

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Two year warranty (Consult factory

for extended terms)

SAFETY

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Designed to meet EN60950-1

Electrical Specifications

Input

Input voltage range

7.5 -14 Vdc

Max input current @ 7.5 V

33 A

Input capacitor (internal)

120 µF

Environmental and General Information

Operating ambient temperature

-40 °C to +85 °C

Storage temperature

-40 °C to +125 °C

Switching frequency (RSYNC = 23.7 Kohm)

457 kHz typical (can be configured)

CMTBF Telcordia SR-332, Issue 3, Method 1 Case 1

50 MHours

Protection

Overcurrent protection

Refer to application note for detail

Overvoltage protection

110% Vo nominal

Overtemperature protection (controller temperature)

120 °C nominal

Output*

Independent output 1 and 2

0.6 V to 1 V

1.8 V

2.5 V

3.3 V

5 V

40 A

35 A

32.5 A

30 A

20 A

Combined output 1 and 2

0.6 V to 1 V

1.8 V

2.5 V

3.3 V

5 V

80 A

70 A

65 A

60 A

40 A

Efficiency at 11 Vin and 25 °C

1 V @ 80 A

1.8 V @ 70 A

2.5 V @ 65 A

3.3 V @ 60 A

5 V @ 40 A

89.9% typical

93% typical

94.5% typical

95% typical

95.5% typical

Max output power (Watts)

200 W

*Output @ Vin = 12 V, Ta = 25 °C, unless otherwise noted

Data Sheet