- 您现在的位置：买卖IC网 > PDF目录69472 > TC2576VAT 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 PDF资料下载
参数资料
| 型号： | TC2576VAT |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封装： | TO-220, 5 PIN |
| 文件页数： | 1/25页 |
| 文件大小： | 213K |
| 代理商： | TC2576VAT |
TC2576
TC2576-2 12/04/00
2001 Microchip Technology Inc.
DS21399A
3.0A Step-Down Switching Regulator
GENERAL DESCRIPTION
The TC2576 series of regulators are monolithic inte-
grated circuits ideally suited for easy and convenient design
of a step–down switching regulator (buck converter). All
circuits of this series are capable of driving a 3.0A load with
excellent line and load regulation. These devices are avail-
able in fixed output voltages of 3.3V, 5.0V, 12.0V and
an adjustable output version.
These regulators were designed to minimize the num-
ber of external components to simplify the power supply
design. Standard series of inductors optimized for use with
the TC2576 are offered by several different inductor manu-
facturers.
Since the TC2576 converter is a switch-mode power
supply, its efficiency is significantly higher in comparison
with popular three-terminal linear regulators, especially with
higher input voltages. In many cases, the power dissipated
is so low, that no heatsinking is required or its size can be
reduced dramatically.
A standard series of inductors optimized for use with the
TC2576 are available from several different manufacturers.
This feature greatly simplifies the design of switch-mode
power supplies.
The TC2576 features include a guaranteed
±4% toler-
ance on output voltage within specified input voltages and
output load conditions, and
±10% on the oscillator fre-
quency (
±2% over 0°C to +125°C). External shutdown is
included, featuring 80
A (typical) standby current. The
output switch includes cycle-by-cycle current limiting, as
well as thermal shutdown for full protection under fault
conditions.
FEATURES
s
3.3V, 5.0V, 12V and Adjustable Output Versions
s
Adjustable Version Output Voltage Range:
1.23 to 37V
±4% Max. Over Line and Load Conditions
s
Guaranteed 3.0A Output Current
s
Wide Input Voltage Range
s
Requires Only 4 External Components
s
52kHz Fixed Frequency Internal Oscillator
s
TTL Shutdown Capability, Low Power Standby Mode
s
High Efficiency
s
Uses Readily Available Standard Inductors
s
Thermal Shutdown and Current Limit Protection
APPLICATIONS
s
Simple and High-Efficiency Step-Down (Buck)
Regulator
s
Efficient Pre–Regulator for Linear Regulators
s
On–Card Switching Regulators
s
Positive to Negative Converters (Buck–Boost)
s
Negative Step-Up Converters
s
Power Supply for Battery Chargers
ORDERING INFORMATION
Part
Temperature
Number
Package
Range
TC2576-3.3VAT
5-Pin TO-220
–40 to +125
°C
TC2576-5.0VAT
5-Pin TO-220
–40 to +125
°C
TC2576-12.0VAT
5-Pin TO-220
–40 to +125
°C
TC2576VAT*
5-Pin TO-220
–40 to +125
°C
PIN CONFIGURATIONS
5-Pin TO-220
Note: *ADJ = 1.23 To 37V.
GND
V
IN
OUTPUT
FEEDBACK
ON/OFF
1 2 34 5
TC2576
相关PDF资料 |
PDF描述 |
|---|---|
| TC2576-3.3VAT | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| TC2576-12.0VAT | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| TC276-40 | SPECIALTY ANALOG CIRCUIT, CDIP20 |
| TC276-20 | SPECIALTY ANALOG CIRCUIT, CDIP20 |
| TC277-30 | SPECIALTY ANALOG CIRCUIT, CDIP20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC258 | 制造商:MCM 功能描述:6FT DC POWER CORD STRAIGHT 2.5X5.5 18 AWG |
| TC258B | 制造商:Datak Corporation 功能描述: |
| TC2591 | 制造商:TRANSCOM 制造商全称:TRANSCOM 功能描述:1 W Flange Ceramic Packaged PHEMT GaAs Power FETs |
| TC2592 | 制造商:L COM 功能描述:C5E UTP 4PR/24 STR VLT PVC 1K 制造商:L-com Inc 功能描述:C5E UTP 4PR/24 STR VLT PVC 1K |
| TC2595 | 制造商:L COM 功能描述:C5E UTP 4PR/24 STR LT. BLUE PV 制造商:L-com Inc 功能描述:C5E UTP 4PR/24 STR LT. BLUE PV |
发布紧急采购，3分钟左右您将得到回复。