LM2597M-5.0 National Semiconductor, LM2597M-5.0 Datasheet - Page 7
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
LM2597M-5.0
Manufacturer Part Number
LM2597M-5.0
Description
SWITCHING REG 0.5A 5.0V, SMD, 2597
Manufacturer
National Semiconductor
Datasheet
1.LM2597N-3.3.pdf
(34 pages)
Specifications of LM2597M-5.0
Primary Input Voltage
12V
No. Of Outputs
1
Output Voltage
5V
Output Current
500mA
Voltage Regulator Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2597M-5.0
Manufacturer:
nstion
Quantity:
2 748
Part Number:
LM2597M-5.0
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM2597M-5.0/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
Typical Performance Characteristics
V
V
Continuous Mode Switching Waveforms
V
L = 100 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Load Transient Response for Continuous Mode
V
L = 100 µH, C
A: Output Voltage, 50 mV/div. (AC)
B: 200 mA to 500 mA Load Pulse
IN
BS
IN
IN
and V
= 20V, V
= 20V, V
and Temperature
BS
Horizontal Time Base: 50 µs/div.
OUT
OUT
Horizontal Time Base: 2 µs/div.
Current vs
OUT
OUT
= 5V, I
= 5V, I
= 120 µF, C
= 120 µF, C
LOAD
LOAD
DS012440-17
= 400 mA
= 200 mA to 500 mA
OUT
OUT
ESR = 140 m
ESR = 140 m
Soft-start Response
DS012440-21
DS012440-19
Discontinuous Mode Switching Waveforms
V
L = 33 µH, C
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Load Transient Response for Discontinuous Mode
V
L = 33 µH, C
A: Output Voltage, 50 mV/div. (AC)
B: 100 mA to 200 mA Load Pulse
(Continued)
7
IN
IN
= 20V, V
= 20V, V
DS012440-18
Horizontal Time Base: 200 µs/div.
OUT
OUT
Horizontal Time Base: 2 µs/div.
OUT
OUT
= 5V, I
= 5V, I
= 220 µF, C
= 220 µF, C
LOAD
LOAD
Shutdown /Soft-start
Threshold Voltage
= 200 mA
= 100 mA to 200 mA
OUT
OUT
ESR = 60 m
ESR = 60 m
DS012440-20
DS012440-22
www.national.com
DS012440-25