LinearVoltageRegulators Motorola Semiconductor Products, LinearVoltageRegulators Datasheet - Page 12

• Manufacturer Part Number: LinearVoltageRegulators
• Description: Analog And Interface Integratedcircuits Selector Guide & Cross Reference
• Manufacturer: Motorola Semiconductor Products

Switching Regulator Control Circuits
are required to implement a variety of switching power
supplies. The product offerings fall into three major categories
consisting of single–ended and double–ended controllers,
plus single–ended ICs with on–chip power switch transistors.
These circuits operate in voltage, current or resonant modes
Table 6. Single–Ended Controllers
converters. They are cost effective in applications that range from 0.1 to 200 W power output.
ANALOG AND INTERFACE INTEGRATED CIRCUITS
SELECTOR GUIDE & CROSS REFERENCE
(T t
(Totem Pole MOSFET
These devices contain the primary building blocks which
These single–ended voltage and current mode controllers are designed for use in buck, boost, flyback, and forward
(U
(Uncommitted
Drive Output)
Drive Output)
Drive Output)
Drive Output)
P l MOSFET
(mA)
1000
Max
500
I O
I O
i
d
Operating
Minimum
11.5 to 30
11.5 to 30
11.5 to 30
7.0 to 40
4.2 to 12
8.2 to 30
8.2 to 30
Voltage
Voltage
11 to 30
11 to 30
Range
(V)
O
Operating
Voltage
Current
Mode
i
1.25
R f
Reference
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
(V)
1.5%
2.0%
1.0%
2.0%
1.0%
2.0%
1.0%
2.0%
1.0%
2.0%
2.0%
and are designed to drive many of the standard switching
topologies. The single–ended configurations include buck,
boost, flyback and forward converters. The double–ended
devices control push–pull, half bridge and full bridge
configurations.
Specifications
Guaranteed
Cycle Limit)
Cycle Limit)
at 250 kHz)
at 250 kHz)
Frequency
(50% D
(50% Duty
Frequency
Frequency
Maximum
Oscillator
Oscillator
(Improved
(Improved
Oscillator
Oscillator
Useful
(kHz)
with
with
200
300
500
500
500
MC34060A
MC33060A
UC3842BV
MC34129
MC33129
UC3842A
UC2842A
UC3843A
UC2843A
UC3842B
UC3844
UC2844
UC3845
UC2845
D
Device
i
–40 to +85
–40 to +85
–25 to +85
–25 to +85
–25 to +85
–25 to +85
–40 to +105
0 to +70
0 to +70
0 to +70
0 to +70
0 to +70
0 to +70
0 to +70
( C)
T
T A
MOTOROLA
Package
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D/751A
D1/751
D1/751
S ffi /
Suffix/
N/626
N/626
N/626
N/626
N/626
N/626
N/626
N/626
N/626
N/626
P/646
P/646
P/646
P/646
41