MOTOROLA MC78LC33HT1 Micropower ultra-low quiescent current voltage regulator Datasheet

Order this document by MC78LC00/D
The MC78LC00 series voltage regulators are specifically designed for
use as a power source for video instruments, handheld communication
equipment, and battery powered equipment.
The MC78LC00 series features an ultra–low quiescent current of 1.1 µA
and a high accuracy output voltage. Each device contains a voltage
reference, an error amplifier, a driver transistor and resistors for setting the
output voltage. These devices are available in either SOT–89, 3 pin, or
SOT–23, 5 pin, surface mount packages.
MICROPOWER ULTRA–LOW
QUIESCENT CURRENT
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
MC78LC00 Series Features:
• Low Quiescent Current of 1.1 µA Typical
•
•
•
•
•
•
Low Dropout Voltage (220 mV at 10 mA)
Excellent Line Regulation (0.1%)
TAB
High Accuracy Output Voltage (±2.5%)
1
Wide Output Voltage Range (2.0 V to 6.0 V)
Output Current for Low Power (up to 80 mA)
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
Two Surface Mount Packages (SOT–89, 3 Pin, or SOT–23, 5 Pin)
ORDERING INFORMATION
Output
Voltage
Device
MC78LC30HT1
MC78LC33HT1
MC78LC40HT1
MC78LC50HT1
3.0
3.3
4.0
5.0
MC78LC30NTR
MC78LC33NTR
MC78LC40NTR
MC78LC50NTR
3.0
3.3
4.0
5.0
Operating
Temperature Range
Package
SOT 89
SOT–89
Ground
1
Input
2
Output
3
30° to +80°C
80°C
TA = –30°
Tab
(Tab is connected
to Pin 2)
(Top View)
SOT 23
SOT–23
5
1
Other voltages from 2.0 to 6.0 V, in 0.1 V increments, are available upon request. Consult
factory for information.
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23)
Representative Block Diagram
Vin
2
3
VO
Ground
1
Input
2
Output
3
5 N/C
4 N/C
(Top View)
Standard Application
Input
Vref
1
3
2
Output
MC78LCXX
Gnd
Cin
1
CO
This device contains 8 active transistors.
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
MOTOROLA ANALOG IC DEVICE DATA
 Motorola, Inc. 1997
Rev 1
1
MC78LC00 Series
MAXIMUM RATINGS
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Symbol
Value
Unit
Input Voltage
Rating
VCC
10
Vdc
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation
Case 1213 (SOT–89) H Suffix
Thermal Resistance, Junction–to–Ambient
Case 1212 (SOT–23) N Suffix
Thermal Resistance, Junction–to–Ambient
PD
RθJA
PD
RθJA
300
333
150
667
mW
°C/W
mW
°C/W
TJ
125
°C
TA
–30 to +80
°C
Tstg
–40 to +125
°C
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
NOTE:
ESD data available upon request.
ELECTRICAL CHARACTERISTICS (Vin = VO + 1.0 V, IO = 10 mA, TJ = 25°C [Note 1], unless otherwise noted.)
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Characteristic
Output Voltage
30HT1 and 30NTR Suffixes (Vin = 5.0 V)
33HT1 and 33NTR Suffixes (Vin = 5.0 V)
40HT1 and 40NTR Suffixes (Vin = 6.0 V)
50HT1 and 50NTR Suffixes (Vin = 7.0 V)
Symbol
Regline
Load Regulation (IO = 1.0 to 10 mA)
30HT1 and 30NTR Suffixes (Vin = 5.0 V)
33HT1 and 33NTR Suffixes (Vin = 6.0 V)
40HT1 and 40NTR Suffixes (Vin = 7.0 V)
50HT1 and 50NTR Suffixes (Vin = 8.0 V)
Regload
Output Current
30HT1 and 30NTR Suffixes (Vin = 5.0 V)
33HT1 and 33NTR Suffixes (Vin = 6.0 V)
40HT1 and 40NTR Suffixes (Vin = 7.0 V)
50HT1 and 50NTR Suffixes (Vin = 8.0 V)
IO
Dropout Voltage
30HT1 and 30NTR Suffixes (IO = 1.0 mA)
33HT1 and 33NTR Suffixes (IO = 1.0 mA)
40HT1 and 40NTR Suffixes (IO = 1.0 mA)
50HT1 and 50NTR Suffixes (IO = 1.0 mA)
Vin – VO
Quiescent Current
30HT1 and 30NTR Suffixes (Vin = 5.0 V)
33HT1 and 33NTR Suffixes (Vin = 5.0 V)
40HT1 and 40NTR Suffixes (Vin = 6.0 V)
50HT1 and 50NTR Suffixes (Vin = 7.0 V)
ICC
Output Voltage Temperature Coefficient
TC
2
Typ
Max
2.950
3.218
3.900
4.875
3.0
3.3
4.0
5.0
3.075
3.382
4.100
5.125
–
0.05
0.2
–
–
–
–
40
40
50
60
60
60
70
90
35
35
45
55
50
50
65
80
–
–
–
–
–
–
–
–
40
35
25
25
60
53
38
38
–
–
–
–
1.1
1.1
1.2
1.3
3.3
3.3
3.6
3.9
–
±100
–
VO
Line Regulation
Vin = [VO + 1.0] V to 10 V, IO = 1.0 mA
NOTE:
Min
Unit
V
mV
mV
mA
V
µA
ppm/°C
1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
MOTOROLA ANALOG IC DEVICE DATA
MC78LC00 Series
DEFINITIONS
Dropout Voltage – The input/output voltage differential at
which the regulator output no longer maintains regulation
against further reductions in input voltage. Measured when
the output drops 100 mV below its nominal value (which is
measured at 1.0 V differential), dropout voltage is affected
by junction temperature, load current and minimum input
supply requirements.
Line Regulation – The change in output voltage for a change
in input voltage. The measurement is made under conditions
of low dissipation or by using pulse techniques such that
average chip temperature is not significantly affected.
Load Regulation – The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation – The maximum total device
dissipation for which the regulator will operate within
specifications.
Quiescent Bias Current – Current which is used to operate
the regulator chip and is not delivered to the load.
Figure 1. Output Voltage versus Input Voltage
Figure 2. Output Voltage versus Output Current
3.2
TA = 25°C
3.0
VO , OUTPUT VOLTAGE (V)
VO , OUTPUT VOLTAGE (V)
3.2
IO = 1.0 mA
2.8
IO = 5.0 mA
2.6
2.4
2.7
TA = –30°C
3.0
2.9
TA = 25°C
2.8
2.7
IO = 10 mA
2.2
2.5
3.1
MC78LC30NTR
2.9
3.1
3.3
MC78LC30NTR
0
0
3.5
20
Figure 3. Dropout Voltage versus Output Current
60
80
100
120
Figure 4. Output Voltage versus Temperature
3.10
2.0
1.6
VO , OUTPUT VOLTAGE (V)
Vin –VO , DROPOUT VOLTAGE (V)
40
IO, OUTPUT CURRENT (mA)
Vin, INPUT VOLTAGE (V)
1.2
0.8
0.4
0
TA = 80°C
MC78LC30NTR
TA = 25°C
0
10
20
30
IO, OUTPUT CURRENT (mA)
MOTOROLA ANALOG IC DEVICE DATA
40
3.06
Vin = 5.0 V
IO= 10 mA
3.02
2.98
2.94
MC78LC30NTR
50
2.90
–40
–20
0
20
40
60
80
TA, AMBIENT TEMPERATURE (°C)
3
MC78LC00 Series
Figure 5. Quiescent Current versus Input Voltage
Figure 6. Quiescent Current versus Temperature
1.2
TA = 25°C
ICC, QUIESCENT CURRENT (µ A)
ICC, QUIESCENT CURRENT (µ A)
1.4
1.3
1.2
1.1
1.0
0.9
MC78LC30NTR
0.8
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Vin = 5.0 V
1.1
1.0
0.9
0.8
0.7
MC78LC30NTR
0.6
–40
10
Vin, INPUT VOLTAGE (V)
INPUT VOLTAGE/OUTPUT VOLTAGE (V)
V in –VO , DROPOUT VOLTAGE (V)
0.7
IO = 10 mA
0.5
0.4
0.3
0.2
0
0
IO = 1.0 mA
1.0
2.0
3.0
4.0
VO, SET OUTPUT VOLTAGE (V)
4
20
40
60
80
Figure 8. Line Transient Response
0.8
0.1
0
TA, AMBIENT TEMPERATURE (°C)
Figure 7. Dropout Voltage versus
Set Output Voltage
0.6
–20
5.0
6.0
8.0
7.5
Input Voltage
7.0
6.5
6.0
5.5
Output Voltage
5.0
CO = 0.1 µF
IO = 1.0 mA
4.5
4.0
0
2.0
4.0
6.0
t, TIME (ms)
MOTOROLA ANALOG IC DEVICE DATA
MC78LC00 Series
APPLICATIONS INFORMATION
Introduction
The MC78LC00 micropower voltage regulators are
specifically designed with high accuracy output voltage and
ultra low quiescent current by CMOS process making them
ideal for battery powered applications and hand–held
communication equipment. An input bypass capacitor is
recommended if the regulator is located an appreciable
distance (≥ 4 inches) from the input voltage source. These
regulators require ≥ 0.1 µF capacitance between the output
terminal and ground for stability. Most types of aluminum,
tantalum or multilayer ceramic will perform adequately. Solid
tantalums or other appropriate capacitors are recommended
for operation below 25°C. The bypass capacitors should be
mounted with the shortest possible leads or track lengths
directly across the regulator input and output terminals.
With economical electrolytic capacitors, cold temperature
operation can pose a serious stability problem. As the
electrolyte freezes, around –30°C, the capacitance will
decrease and the equivalent series resistance (ESR) will
increase drastically, causing the circuit to oscillate. Quality
electrolytic capacitors with extended temperature ranges of
–40° to +85°C are readily available. Solid tantalum
capacitors may be the better choice if small size is a
requirement. However, a maximum ESR limit of 3.0 Ω must
be observed over temperature to maintain stability.
In the Current Boost Circuit, shown in Figures 10 and 12,
an output current of up to 600 mA can be delivered by the
circuit. The circuit of Figure 10 has no current limit. In each
case, the external transistor must be rated for the expected
power dissipation. Figure 11 shows how a fixed output may
be programmed, using R1 and R2, to provide a higher
output voltage.
Figure 9. Typical Application
2
Vin
Figure 10. Current Boost Circuit
MJD32C
3
VO
.033 µF
MC78LC00
0.1 µF
0.1 µF
Gnd
2
100
Vin
1
3
1
0.1 µF
Gnd
VO
MC78LC00
0.1 µF
Gnd
Gnd
Figure 12. Current Boost Circuit with
Overcurrent Limit Circuit
Figure 11. Adjustable VO
2
Vin
R2
3
VO
MC78LC00
R1
1
ICC
C1
Gnd
MJD32C
Q1
.033 µF
Q2
C2
Vin
MMBT2907
ALT1
2
3
MC78LC00
0.1 µF
1
O
ǒ Ǔ
+ VO(Reg) 1 ) R2
) ICC R2
R1
MOTOROLA ANALOG IC DEVICE DATA
0.1 µF
Gnd
Gnd
V
VO
R1
R2
I
O(short circuit)
V
) VBE2
BE2 ) BE1
[ VR2
R1
5
MC78LC00 Series
OUTLINE DIMENSIONS
H SUFFIX
PLASTIC PACKAGE
CASE 1213–01
(SOT–89)
ISSUE O
A
D
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCING
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
A2
C
B
D1
DIM
A2
B
B1
C
D
D1
E
E1
e
e1
L1
E1
E
L1
B
0.10
B1
e
M
C B
S
A
C
S
2X
0.10
M
C B
A
S
S
MILLIMETERS
MIN
MAX
1.40
1.60
0.37
0.57
0.32
0.52
0.30
0.50
4.40
4.60
1.50
1.70
–––
4.25
2.40
2.60
1.50 BSC
3.00 BSC
0.80
–––
e1
N SUFFIX
PLASTIC PACKAGE
CASE 1212–01
(SOT–23)
ISSUE O
A
B
D
5
E
1
A2
0.05 S
A1
4
2
L
3
E1
L1
B
C
5X
0.10
e
e1
6
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
M
C B
S
A
S
C
DIM
A1
A2
B
C
D
E
E1
e
e1
L
L1
MILLIMETERS
MIN
MAX
0.00
0.10
1.00
1.30
0.30
0.50
0.10
0.25
2.80
3.00
2.50
3.10
1.50
1.80
0.95 BSC
1.90 BSC
0.20
–––
0.45
0.75
MOTOROLA ANALOG IC DEVICE DATA
MC78LC00 Series
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
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are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
MOTOROLA ANALOG IC DEVICE DATA
7
MC78LC00 Series
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8
◊
MC78LC00/D
MOTOROLA ANALOG IC DEVICE DATA
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