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Teilenummer | LR2596 |
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Beschreibung | 3A PWM Buck DC/DC Converter | |
Hersteller | LRC | |
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Gesamt 7 Seiten LESHAN RADIO COMPANY, LTD.
LR2596
150KHz, 3A PWM Buck DC/DC Converter
LR2596 Series
Description
The LR2596 is Monolithic IC that design for a step-down DC/DC Converter, and own
the ability of driving a 3A load without additional transistor component. The output
version included 3.3V, 5V, 12V and an adjustable type. It operates at a switching
frequency of 150KHz thus allowing smaller sized filter components than what would
be needed with lower frequency switching regulators. Other features include a
guaranteed ±4% tolerance on output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator frequency. Regarding protected
function, thermal shutdown is to prevent over temperature operating from damage,
and current limit is against over current operating of the output switch.
Features
• 3.3V, 5V, 12V and adjustable
• Adjustable version output voltage range: 1.4-37V
• ±4% max over line and load conditions
• 150KHz ±15% fixed switching frequency
• TTL shutdown capability
• Operating voltage can be up to 40V
• Output load current: 3A
• TO220-5L and TO263-5L packages
• Low power standby mode
• Thermal-shuntdown and current-limit protection
• High efficiency
• Built-in switching a transistor on chip, requires only 4 external components
Applications
• Simple High-efficiency step-down regulator
• Positive to negative converter
• On-card switching regulators
Connection Diagrams
Side
View
TO220-5L
Top
View
Metal Tab GND
Pins 1,3,5
Pins 2,4
5 - On/Off
4 - Feed Back
3 - Ground
2 - Output
1 - VIN
Side
View
TO263-5L
Top
View
Metal Tab GND
12345
5 - On/Off
4 - Feed Back
3 - Ground
2 - Output
1 - VIN
1/7
TO-263-5L Dimension
LESHAN RADIO COMPANY, LTD.
LR2596
AE
B FK
G
C
1 2345
H
I
J
D
a1
5-Lead TO-263
Plastic Package
DBMI Package Code: U
TO-220-5L Dimension
Marking:
Pb Free Mark
."
D
Pb-Free: "
U Product Series
ADJ,3.3,5.0,
2596 -
Normal: None
Date Code
Control Code
L
Note: Green label is used for pb-free packing
Pin Style: 1.Vin 2.Output 3.Ground 4.Feed Back
5.On/Off
Material:
• Lead solder plating: Sn60/Pb40 (Normal),
Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)
• Mold Compound: Epoxy resin family,
flammability solid burning class: UL94V-0
DIM Min. Max.
A 9.9 10.30
B - #7.10
C 15.20 15.60
D - *1.70
E 4.50 4.70
F - *1.27
G 8.20 8.60
H 0.05 0.25
I 5.10 5.50
J 2.44 2.64
K - #7.00
L - #4.48
a1 0O 7O
#: REF, *: Typical, Unit: mm
B
C
D
S
A
r1
J
K
r2
G
I
E
L a1
F
O
r3
a1
M
a1 N
r3
r3
HP
Q
R
Marking:
Pb Free Mark
Pb-Free: ". "
D
Normal:
2596 -
Product Series
E ADJ,3.3,5.0,12
Date Code
Control Code
Note: Green label is used for pb-free packing
Pin Style: 1.Vin 2.Output 3.Ground 4.Feed Back
5.On/Off
Material:
• Lead solder plating: Sn60/Pb40 (Normal),
Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)
• Mold Compound: Epoxy resin family,
flammability solid burning class: UL94V-0
5-Lead TO-220
Plastic Package
DBMI Package Code: E
DIM Min. Max.
A 10.10 10.50
B 2.55 2.95
C 3.20 3.60
D 7.90 8.30
E 12.50 12.90
F 22.30 22.70
G 3.20 3.60
H 0.70 0.90
I 6.60 7.00
J 4.40 4.80
K 1.17 1.37
L 17.00 18.00
M 16.00 16.40
N 17.00 19.00
O 2.30 2.70
P 3.30 4.10
Q 0.28 0.48
R 7.62 8.02
S 22.90 23.30
r1 1.85 1.95
r2 1.20 1.30
r3 2.80 3.20
a1 4.5o 5.5o
*: Typical, Unit: mm
6/7
6 Page | ||
Seiten | Gesamt 7 Seiten | |
PDF Download | [ LR2596 Schematic.PDF ] |
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www.Datenblatt-PDF.com | 2020 | Kontakt | Suche |