LM2597HVM-ADJ/NOPB National Semiconductor, LM2597HVM-ADJ/NOPB Datasheet - Page 7
![IC REG SIMPLE SWITCHER 8-SOIC](/photos/6/56/65640/pkg_m08a_sml.jpg)
LM2597HVM-ADJ/NOPB
Manufacturer Part Number
LM2597HVM-ADJ/NOPB
Description
IC REG SIMPLE SWITCHER 8-SOIC
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM2597M-3.3NOPB.pdf
(34 pages)
Specifications of LM2597HVM-ADJ/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.2 ~ 37 V
Current - Output
500mA
Frequency - Switching
150kHz
Voltage - Input
4.5 ~ 60 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
*LM2597HVM-ADJ
*LM2597HVM-ADJ/NOPB
LM2597HVM-ADJ
*LM2597HVM-ADJ/NOPB
LM2597HVM-ADJ
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2597HVM-ADJ/NOPB
Manufacturer:
NSC
Quantity:
20
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