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DC-to-DC CONVERTER. MC33463 Datasheet

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DC-to-DC CONVERTER. MC33463 Datasheet






MC33463 CONVERTER. Datasheet pdf. Equivalent




MC33463 CONVERTER. Datasheet pdf. Equivalent





Part

MC33463

Description

VARIABLE FREQUENCY MICROPOWER DC-to-DC CONVERTER



Feature


( DataSheet : www.DataSheet4U.com ) Ord er this document by MC33463/D MC33463 Variable Frequency Micropower DC-to-DC Converter The MC33463 series are microp ower step–up switching voltage regula tors, specifically designed for handhel d and laptop applications, to provide r egulated output voltages using a minimu m of external parts. A wide choice of o utput voltages are a.
Manufacture

Motorola

Datasheet
Download MC33463 Datasheet


Motorola MC33463

MC33463; vailable. These devices feature a very l ow quiescent bias current of 4.0 µA ty pical. The MC33463H–XXKT1 series feat ures a highly accurate voltage referenc e, an oscillator, a variable frequency modulation (VFM) controller, a driver t ransistor (Lx), a comparator and feedba ck resistive divider. The MC33463H–XX LT1 is identical to the MC33463H–XXKT 1, except that a drive pi.


Motorola MC33463

n (EXT) for an external transistor is pr ovided. Due to the low bias current spe cifications, these devices are ideally suited for battery powered computer, co nsumer, and industrial equipment where an extension of useful battery life is desirable. VARIABLE FREQUENCY MICROPOW ER DC–to–DC CONVERTER SEMICONDUCTOR TECHNICAL DATA TAB 1 MC33463 Series Features: • • • • • •.


Motorola MC33463

Low Quiescent Bias Current of 4.0 µA High Output Voltage Accuracy of ±2.5% Low Startup Voltage of 0.9 V at 1.0 mA Wide Output Voltage Range of 2.5 V to 7 .5 V Available High Efficiency of 80% T ypical Surface Mount Package PIN CONNEC TIONS MC33463H–XXKT1 Ground Output Lx 1 2 3 (Top View) Package (Tape/Reel) S OT–89 (T (Tape) ) 30° to +80 80°C T A = –30 SOT–89 (T (Tape) ).

Part

MC33463

Description

VARIABLE FREQUENCY MICROPOWER DC-to-DC CONVERTER



Feature


( DataSheet : www.DataSheet4U.com ) Ord er this document by MC33463/D MC33463 Variable Frequency Micropower DC-to-DC Converter The MC33463 series are microp ower step–up switching voltage regula tors, specifically designed for handhel d and laptop applications, to provide r egulated output voltages using a minimu m of external parts. A wide choice of o utput voltages are a.
Manufacture

Motorola

Datasheet
Download MC33463 Datasheet




 MC33463
( DataSheet : www.DataSheet4U.com )
Order this document by MC33463/D
Variable Frequency
Micropower DC-to-DC
Converter
The MC33463 series are micropower step–up switching voltage
regulators, specifically designed for handheld and laptop applications, to
provide regulated output voltages using a minimum of external parts. A wide
choice of output voltages are available. These devices feature a very low
quiescent bias current of 4.0 µA typical.
The MC33463H–XXKT1 series features a highly accurate voltage
reference, an oscillator, a variable frequency modulation (VFM) controller, a
driver transistor (Lx), a comparator and feedback resistive divider.
The MC33463H–XXLT1 is identical to the MC33463H–XXKT1, except
that a drive pin (EXT) for an external transistor is provided.
Due to the low bias current specifications, these devices are ideally suited
for battery powered computer, consumer, and industrial equipment where an
extension of useful battery life is desirable.
MC33463 Series Features:
Low Quiescent Bias Current of 4.0 µA
High Output Voltage Accuracy of ±2.5%
Low Startup Voltage of 0.9 V at 1.0 mA
Wide Output Voltage Range of 2.5 V to 7.5 V Available
High Efficiency of 80% Typical
Surface Mount Package
ORDERING INFORMATION
Device
Output
Operating
Package
Voltage Type Temperature Range (Tape/Reel)
MC33463H–30KT1
MC33463H–33KT1
MC33463H–50KT1
MC33463H–30LT1
MC33463H–33LT1
MC33463H–50LT1
3.0 Int.
3.3 Switch
5.0
3.0 Ext. TA = –30° to +80°C
3.3 Switch
5.0 Drive
SOT–89
(Tape)
SOT–89
(Tape)
Other voltages from 2.5 V to 7.5 V, in 0.1 V increments are available. Consult factory for
information.
MC33463
VARIABLE FREQUENCY
MICROPOWER DC–to–DC
CONVERTER
SEMICONDUCTOR
TECHNICAL DATA
TAB
1
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
PIN CONNECTIONS
MC33463H–XXKT1
Ground 1
Output 2
Lx 3
(Top View)
Tab
(Tab is connected
to Pin 2)
MC33463H–XXLT1
Ground 1
Output 2
EXT 3
(Top View)
Tab
(Tab is connected
to Pin 2)
MOTOROLA ANALOG IC DEVICE DATA
www.DataSheet4U.com
© Motorola, Inc. 1999
Rev 1
1




 MC33463
MC33463
Representative Block Diagrams
L
Vin 3
Lx
Cin
MC33463H–XXKT1
D
VLx Limitier
Drive
2 VO
Output
CO
VFM
Controller
100 kHz
Oscillator
Vref
1 Gnd
L MC33463H–XXLT1
Vin
Cin
D
Rb 3
Q Drive
EXT
VFM
Cb Controller
2 VO
Output
CO
100 kHz
Oscillator
Vref
1 Gnd
XX Denotes Output Voltage
This device contains 100 active transistors.
MAXIMUM RATINGS (TC = 25°C, unless otherwise noted.)
Rating
Symbol
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Voltage (Transient)
VCC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Voltage (Operating)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁExternal Pin Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLx Pin Voltage
VCC
VEXT
VLx
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁEXT Pin Source/Sink Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLx Pin Sink Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Dissipation and Thermal Characteristics
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁH Suffix, Plastic Package Case 1213 (SOT–89)
IEXT
ILx
Value
12
8.0
–0.3 to VO
12
50/50
250
Unit
V
V
V
V
mA
mA
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction–to–Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Junction Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Ambient Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature Range
PD
RθJA
TJ
TA
Tstg
500
200
125
–30 to +80
–40 to +125
mW
°C/W
°C
°C
°C
2 MOTOROLA ANALOG IC DEVICE DATA




 MC33463
MC33463
ELECTRICAL CHARACTERISTICS (VCC = 2.0 V, IO = 10 mA and TA = 25°C, unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
OSCILLATOR
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁFrequency
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOscillator Minimum Supply Voltage (IO = 0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOscillator Duty Ratio Each Cycle
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLx OUTPUT (KT1 SUFFIX)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁON State Sink Current (VLx = 0.4 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ30KT1 Suffix
fosc
VCC
D
ILx
80 100 120 kHz
– 0.7 0.8 V
65 75 85 %
60 –
mA
33KT1 Suffix
63 –
50KT1 Suffix
80 –
VLx Voltage Limit (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOFF State Leakage Current (VLx = 6.0 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁEXT OUTPUT (LT1 SUFFIX)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁON State Source Current (VEXT = VO – 0.4 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ30LT1 Suffix
VLxLim 0.65 0.8
ILKG – –
Isource
1.5
1.0 V
0.5 µA
mA
33LT1 Suffix
1.575
50LT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOFF State Sink Current (VEXT = 0.4 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ30LT1 Suffix
2.0 –
Isink
1.5 –
mA
33LT1 Suffix
1.575
ÁÁÁÁÁÁTOO53uT00ÁÁÁtALKpTLuT1t1DÁÁÁVSoEourVltf3afÁÁÁIiC0gxLeETÁÁÁ1SuÁÁÁffix ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVÁÁÁO ÁÁÁÁÁÁÁÁ2Á2.9.02ÁÁ5ÁÁÁÁÁÁÁ3–.0ÁÁÁÁÁÁ3ÁÁÁ.0–75ÁÁÁÁÁÁÁÁVÁÁÁÁ
33KT1 or 33LT1 Suffix
3.218 3.3 3.383
50KT1 or 50LT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁQuiescent Bias Current (Vin = 2.0 V, IO = 0 mA)
30KT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ33KT1 Suffix
4.875 5.0 5.125
IQ µA
– 4.0 8.0
– 4.3 8.6
50KT1 Suffix
– 6.0 12
Quiescent Bias Current (Vin = VO + 0.5 V, IO = 0 mA)
30KT1 Suffix
– 1.2 5.0
33KT1 Suffix
50KT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁQuiescent Bias Current (Vin = 2.0 V, IO = 0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ30LT1 Suffix
– 1.2 5.0
– 2.0 5.0
IQ µA
– 30 50
33LT1 Suffix
– 34.5 56
50LT1 Suffix
– 60 90
Quiescent Bias Current (Vin = VO + 0.5 V, IO = 0 mA)
30LT1 Suffix
– 1.2 5.0
33LT1 Suffix
– 1.2 5.0
50LT1 Suffix
– 2.0 5.0
NOTE: 1. When the Lx switch is turned on, ILx carried through the RDS(on) of the Lx switch results in VLx. When VLx reaches VLxLim, the Lx switch is turned
off by the Lx switch protection circuit.
MOTOROLA ANALOG IC DEVICE DATA
3






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