LM2591HVT-5.0/NOPB National Semiconductor, LM2591HVT-5.0/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM2591HVT-5.0/NOPB
• Description: IC REG SIMPLE SWITCHER TO220-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2591HVT-5.0/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 1A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 60 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2591HVT-5.0; *LM2591HVT-5.0/NOPB; LM2591HVT-5.0

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Typical Performance Characteristics
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
L = 52 µH, C
Continuous Mode Switching Waveforms
V
Horizontal Time Base: 2 µs/div.
IN
ON/OFF Pin Current (Sinking)
= 20V, V
OUT
Switching Frequency
= 100 µF, C
OUT
= 5V, I
OUT
LOAD
ESR = 100 mΩ
10129380
10129313
= 1A
10129320
(Circuit of Figure 1) (Continued)
6
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.25A/div.
C: Output Ripple Voltage, 100 mV/div.
L = 15 µH, C
Discontinuous Mode Switching Waveforms
V
Internal Gain-Phase Characteristics
IN
Horizontal Time Base: 2 µs/div.
= 20V, V
ON/OFF Threshold Voltage
OUT
OUT
= 150 µF, C
= 5V, I
LOAD
OUT
= 250 mA
ESR = 90 mΩ
10129379
10129378
10129319