參數(shù)資料
型號: TC33063AEOATR
元件分類: 穩(wěn)壓器
英文描述: 0.35 A SWITCHING REGULATOR, 42 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOIC-8
文件頁數(shù): 1/10頁
文件大?。?/td> 121K
代理商: TC33063AEOATR
1
TC33063A
DC/DC Converter Control Circuits
TC33063A -1 5/9/00
TC33063A
DC/DC Converter Control Circuits
FEATURES
s
Operation from 3.0V to 40V Input
s
Low Standby Current
s
Current Limiting
s
Output Switch Current to 1.5A
s
Output Voltage Adjustable
s
Frequency Operation to 100kHz
s
Precision 2% Reference
s
Available in an 8-Pin PDIP and SOIC Package
TYPICAL APPLICATIONS
s
Adapter Cards
s
Set-Top Boxes
s
Industrial Controllers
s
Network Boxes
s
Wireless Base Stations
ORDERING INFORMATION
Part
Temperature
Number
Package
Range
TC33063AEPA
8-Pin PDIP
–40
° to +85°C
TC33063AEOA
8-Pin SOIC
–40
° to +85°C
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
PIN CONFIGURATIONS
GENERAL DESCRIPTION
The TC33063A Series ia a monolithic control circuit
containing the primary functions required for DC/DC con-
verters. These devices consist of an internal temperature
compensated reference, comparator, controlled duty cycle
oscillator with an active current limit circuit, driver and high
current output switch. This series was specifically designed
to be incorporated in Step–Down and Step–Up and Volt-
age–Inverting applications with a minimum number of exter-
nal components.
1
2
3
4
8
7
6
5
SWITCH
COLLECTOR
DRIVER
COLLECTOR
IPK SENSE
VCC
COMPARATOR
INVERTING
INPUT
SWITCH
EMITTER
GND
TIMING
CAPACITOR
TC33063A
TYPICAL APPLICATION
SQ
R
Q2
Q1
100
IPK
Oscillator
CT
Comparator
1.25V
Reference
Regulator
8
7
6
5
1
2
3
4
Drive Collector
IPK Sense
VCC
Comparator
Inverting Input
This device contains 51 active transistors
Switch Collector
Switch Emitter
Timing Capacitor
GND
(Bottom View)
+
8-Pin PDIP / SOIC
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