LM2593HVT-5.0 National Semiconductor, LM2593HVT-5.0 Datasheet - Page 8

• Manufacturer Part Number: LM2593HVT-5.0
• Description: IC, STEP-DOWN REGULATOR, TO-220-7
• Manufacturer: National Semiconductor

Specifications of LM2593HVT-5.0

• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 5V
• Output Current: 2A
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4.5V To 60V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Test Circuit and Layout Guidelines
Component Values shown are for V
V
C
C
D1
L1
Select R
Component Values shown are for V
V
C
C
D1 — 3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
L1 — 47 µH, See Inductor Selection Procedure
R
R
C
Typical Values
C
C
R
drag feedback pin below ground). Required if V
†
††
OUT
IN
OUT
OUT
IN
OUT
1
2
FF
SS
DELAY
PULL UP
Resistive divider is required to aviod exceeding maximum rating of 45V/3mA on/into flag pin.
Small signal Schottky diode to prevent damage to feedback pin by negative spike when output is shorted (C
:
— 1 k , 1%
— 7.15k, 1%
— 0.1 µF
— 3.3 nF
—
—
:
= 5V, I
—
= 10V, I
— 470 µF, 35V, Aluminum Electrolytic Nichicon “PM Series”
— 0.1 µF
—
1
— 220 µF, 35V Aluminum Electrolytic, Nichicon “PM Series”
33 µH, See Inductor Selection Procedure
3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
to be approximately 1 k , use a 1% resistor for best stability.
— 4.7k (use 22k if V
470 µF, 50V, Aluminum Electrolytic Nichicon “PM Series”
LOAD
220 µF, 25V Aluminum Electrolytic, Nichicon “PM Series”
LOAD
= 2A.
= 2A.
OUT
IN
IN
is
= 15V,
= 20V,
45V)
FIGURE 1. Standard Test Circuits and Layout Guides
IN
>
40V
Adjustable Output Voltage Versions
Fixed Output Voltage Versions
8
FF
not being able to discharge immediately will
10133325
10133324