OCP2576 Datasheet PDF - ORIENT-CHIP
| Part Number | OCP2576 | |
| Description | Simple Switch 3A Step-down Voltage Regulator | |
| Manufacturers | ORIENT-CHIP | |
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OCP2576
Simple Switch 3A Step-down Voltage Regulator
Features
General Description
z Output voltage: 3.3V, 5V, 12V, 15V and adjustable The OCP2576 series of regulators are monolithic IC
output versions
that provide all the active function for a step-down
z Adjustable version output voltage range:1.23V to (buck) switching regulator, capable of driving 3A load
30V±4% max over line and load conditions
with excellent line and load regulation. These
z Guaranteed 3A output current
devices are available in fixed output voltages of
z Input voltage up to 36V
3.3V, 5V, 12V, 15V and an adjustable output version.
z
z
z
z
z
Requires only 4 external components
52KHz fixed frequency internal oscillator
TTL shutdown capability, low power standby mode
High efficiency
Thermal shutdown and current limit protection
Requiring a minimum number of external
components, these regulators are simple to use and
include internal frequency compensation and a fixed
frequency oscillator.
A standard series of inductors optimized for use with
Applications
z Simple High-efficiency step-down regulator
z Efficient pre-regulator for linear regulators
z Positive to negative converter(Buck-Boost)
the OCP2576 are available from several different
manufacturers. This feature greatly simplifiers the
design of switch-mode power supplies.
Others features include a guaranteed ±4% tolerance
on output within specified input voltages and output
load conditions, and ±10% on the oscillator
frequency. External shutdown in included, featuring
50μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
thermal shutdown for full protection under fault
conditions.
Pin Configuration
(1) TO220-5L
(Top View)
Metal Tab Gnd
5 SD
4 FB
3 GND
2 OUTPUT
1 VIN
Symbol
1
2
3
4
5
Name
Vin
Output
Gnd
FB
SD
Descriptions
Operating Voltage Input
Switching Output
Ground
Output Voltage Feedback Control
ON/OFF Shutdown
(2) TO263-5L
(Top View)
5 SD
4 FB
3 GND
2 OUTPUT
1 VIN
Metal Tab Gnd
Page1-9
Rev. 1.3 Mar. 02, 2006
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OCP2576
Simple Switch 3A Step-down Voltage Regulator
Typical Performance Characteristics
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-50
Normalized Output Voltage
VIN=20V, ILOAD=500mA
Normalized at TJ=25℃
-25 0 25 50 75 100
Junction Temperature (℃)
125
Line Regulation
1.4
1.2
1.0
ILOAD=500mA
TJ=25℃
0.8
0.6 3.3V, 5.0V and ADJ
0.4
0.2
0
-0.2 12V and 15V
-0.4
-0.6
0 5.0 10 15 20 25 30
Input Voltage (V)
35
Oscillator Frequency
10
8.0
6.0
VIN=12V
Normalized at 25℃
4.0
2.0
0
-2.0
-4.0
-6.0
-8.0
-10
-50 -25 0 25 50 75 100
Junction Temperature (℃)
125
Current Limit
6.5
VIN=25V
6.0
5.5
5.0
4.5
4.0
-50
-25 0 25 50 75 100 125
Junction Temperature (℃)
Page5-9
Rev. 1.3 Mar. 02, 2006
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for OCP2576 electronic component. |
| Information | Total 9 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ OCP2576.PDF Datasheet ] | |
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