LM26484SQEV National Semiconductor, LM26484SQEV Datasheet - Page 8

• Manufacturer Part Number: LM26484SQEV
• Description: BOARD EVALUATION FOR LM2684
• Manufacturer: National Semiconductor

Specifications of LM26484SQEV

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 1V, 1.8V, 1V
• Current - Output: 2A, 2A, 1A
• Voltage - Input: 3 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM26484
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

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Flexible Power Sequencing of
Multiple Power Supplies
The two bucks and the LDO in the LM26484 can be individ-
ually controlled with ENSW1, ENSW2, and ENLDO, respec-
tively. All the enable inputs need to be either grounded or tied
to V
IH
.
Efficiency of Buck1, V
Efficiency of Buck1, V
OUT
OUT
= 1.8V, at Room Temp
= 3.5V at Room Temp
FIGURE 1. Power-On Reset Waveform
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8
Power-On Reset
The LM26484 provides an active low reset output nPOR.
Typical waveform is as shown in
Efficiency of Buck2, V
30066103
OUT
= 1.0V, at Room Temp
Figure 1
below:
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