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MC33166 반도체 회로 부품 판매점

(MC33166 / MC34166) Step-Up/Down/Inverting Switching Regulators



ON Semiconductor 로고
ON Semiconductor
MC33166 데이터시트, 핀배열, 회로
www.DataSheet4U.com
MC34166, MC33166
3.0 A, Step−Up/Down/
Inverting Switching
Regulators
The MC34166, MC33166 series are high performance fixed
frequency power switching regulators that contain the primary
functions required for dc−to−dc converters. This series was specifically
designed to be incorporated in step−down and voltage−inverting
configurations with a minimum number of external components and
can also be used cost effectively in step−up applications.
These devices consist of an internal temperature compensated
reference, fixed frequency oscillator with on−chip timing components,
latching pulse width modulator for single pulse metering, high gain
error amplifier, and a high current output switch.
Protective features consist of cycle−by−cycle current limiting,
undervoltage lockout, and thermal shutdown. Also included is a low
power standby mode that reduces power supply current to 36 mA.
Features
Output Switch Current in Excess of 3.0 A
Fixed Frequency Oscillator (72 kHz) with On−Chip Timing
Provides 5.05 V Output without External Resistor Divider
Precision 2% Reference
0% to 95% Output Duty Cycle
Cycle−by−Cycle Current Limiting
Undervoltage Lockout with Hysteresis
Internal Thermal Shutdown
Operation from 7.5 V to 40 V
Standby Mode Reduces Power Supply Current to 36 mA
Economical 5−Lead TO−220 Package with Two Optional Leadforms
Also Available in Surface Mount D2PAK Package
Moisture Sensitivity Level (MSL) Equals 1
Pb−Free Packages are Available
Vin
ILIMIT
4
Oscillator
PWM
S
Q
R
2
Thermal
UVLO
Reference
L
EA
1
VO
5.05 V/
3.0 A
35
This device contains 143 active transistors.
Figure 1. Simplified Block Diagram
(Step Down Application)
http://onsemi.com
x = 3 or 4
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
MARKING
DIAGRAMS
1
5
TO−220
TH SUFFIX
CASE 314A
MC
3x166T
AWLYWWG
1
5
TO−220
TV SUFFIX
CASE 314B
MC
3x166T
AWLYWWG
Heatsink surface connected to Pin 3
TO−220
MC
T SUFFIX
3x166T
CASE 314D AWLYWWG
1
5
Pin 1. Voltage Feedback Input
2. Switch Output
3. Ground
4. Input Voltage/VCC
5. Compensation/Standby
1
5
D2PAK
D2T SUFFIX
CASE 936A
MC
3x166T
AWLYWWG
Heatsink surface (shown as
terminal 6 in case outline
1
drawing) is connected to Pin 3
5
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 7
1
Publication Order Number:
MC34166/D


MC33166 데이터시트, 핀배열, 회로
MC34166, MC33166
ORDERING INFORMATION
Device
MC33166D2T
MC33166D2TG
MC33166D2TR4
MC33166D2TR4G
Operating
Temperature Range
Package
D2PAK − Surface Mount
D2PAK − Surface Mount
(Pb−Free)
D2PAK − Surface Mount
D2PAK − Surface Mount
(Pb−Free)
Shipping
50 Units/Rail
800 / Tape & Reel
MC33166T
MC33166TG
TA= −40° to +85°C
TO−220 − Straight Lead
TO−220 − Straight Lead
(Pb−Free)
MC33166TH
MC33166THG
MC33166TV
MC33166TVG
MC34166D2T
MC34166D2TG
MC34166D2TR4
MC34166D2TR4G
TO−220 − Horizontal Mount
TO−220 − Horizontal Mount
(Pb−Free)
TO−220 − Vertical Mount
TO−220 − Vertical Mount
(Pb−Free)
D2PAK − Surface Mount
D2PAK − Surface Mount
(Pb−Free)
D2PAK − Surface Mount
D2PAK − Surface Mount
(Pb−Free)
50 Units/Rail
800 / Tape & Reel
MC34166T
MC34166TG
MC34166TH
MC34166THG
TA= 0° to +70°C
TO−220 − Straight Lead
TO−220 − Straight Lead
(Pb−Free)
TO−220 − Horizontal Mount
TO−220 − Horizontal Mount
(Pb−Free)
50 Units/Rail
MC34166TV
TO−220 − Vertical Mount
MC34166TVG
TO−220 − Vertical Mount
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MAXIMUM RATINGS
Rating
Power Supply Input Voltage
Switch Output Voltage Range
Voltage Feedback and Compensation Input Voltage Range
Power Dissipation
Case 314A, 314B and 314D (TA = +25°C)
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Case 936A (D2PAK) (TA = +25°C)
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Operating Junction Temperature
Operating Ambient Temperature (Note 2)
MC34166
MC33166
Symbol
VCC
VO(switch)
VFB, VComp
PD
qJA
qJC
PD
qJA
qJC
TJ
TA
Value
40
−1.5 to + Vin
−1.0 to + 7.0
Internally Limited
65
5.0
Internally Limited
70
5.0
+150
0 to + 70
− 40 to + 85
Unit
V
V
V
W
°C/W
°C/W
W
°C/W
°C/W
°C
°C
Storage Temperature Range
Tstg
− 65 to +150
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015.
Machine Model Method 200 V.
2. Tlow = 0°C for MC34166
= − 40°C for MC33166
Thigh = + 70°C for MC34166
= + 85°C for MC33166
http://onsemi.com
2




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MC33166 regulator

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