LESHAN RADIO COMPANY, LTD.
LR6219 Series
Low Dropout Voltage
300mA CMOS LDO Regulator
INTRODUCTION
The LR6219 Series
are a group of
positive voltage regulators manufactured
by CMOS technologies with high ripple
rejection, extremely low power consump-
tion and low dropout voltage, which
provide large output currents even when
the difference of the input-output voltage is
small. Each of the LR 6219 series consists
of a high-precision voltage reference, an
error correction circuit, and a current limit-
ed output driver. Thus the series are very
suitable for the battery-powered equip-
ments, such as Portable/Palm computers,
Portable consumer equipments, industry
equipments and so on, which want to
prolong the using life of the battery.
FEATURE
●
Maximum Output Current: 300mA（Typ.）
●
Output Voltage Range: 0.9V½5.0V,
（selectable
in 0.1V steps）
●
High Accuracy: ±2％（Typ.）
●
Dropout Voltage:
150mV@100mA（3.0V Typ.）
●
Excellent Line Regulation: 0.1％/V
●
Built-in Current Limiter
●
Built-in Short Circuit Protection
●
Static safety, 2KV@HBM
●
TC: 100ppm/℃
●
Low ESR Capacitor: Ceramic Compatible
APPLICATION
●
Battery powered systems
●
Radio control systems
●
Portable instrumentations
●
Portable/Palm computers
●
Reference Voltage Sources
●
Portable consumer equipments
BLOCK DIAGRAM
ORDER INFORMATION
LR6218
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LESHAN RADIO COMPANY, LTD.
PIN CONFIGURATION
LR6219（Pin
output sequence can be ordered by customer）
PIN NUMBER
SOT23-3
M
1
2
3
MC
3
2
1
MY
3
1
2
SOT89-3
P
1
3
2
PT
2
1
3
TO92
T
1
3
2
V
SS
V
OUT
V
IN
Ground
Output
Power input
PIN NAME
FUNCTION
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
SOT23
Power Dissipation
SOT89
TO92
Operating Temperature
Storage Temperature
Soldering Temperature & Time
SYMBOL
V
IN
I
OUT
V
OUT
Pd
Pd
Pd
T
Opr
T
stg
T
solder
Rating
8
600
Vss-0.3~Vout+0.3
250
500
500
-40~+85
-55~+125
260℃, 10s
UNIT
V
mA
V
mW
mW
mW
℃
℃
ELECTRICAL CHARACTERISTICS
LR6219 Series
PARAMETER
Output Voltage
Supply Current
Output Current
Dropout Voltage
(Note 3)
SYMBOL
V
OUT
(E)
(Note 2)
I
SS
Iout
V
dif1
V
dif2
CONDITIONS
I
OUT
=40mA
V
IN
= V
OUT
+1V
V
CE
=V
IN
=Vout+1V
－
I
OUT
= 40mA
I
OUT
= 100mA
300
60
150
MIN.
V
OUT
*0.98
(C
IN
= C
OUT
= 1μF，
Ta=25℃)
TYP.
V
OUT
5
MAX.
V
OUT
*1.02
UNITS
V
μA
mA
mV
mV
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LESHAN RADIO COMPANY, LTD.
Load Regulation
Line Regulation
Output Voltage
Temperature
Characteristics
Power Supply
Ripple Rejection
Short Current
Current Limit
Input Voltage
∆V
OUT
∆V
OUT
∆V
IN
* V
OUT
∆V
OUT
∆T
* V
OUT
PSRR
I
Short
I
Lim
V
IN
V
IN
= V
OUT
+1V,
1mA≤I
OUT
≤100mA
I
OUT
= 40mA
V
OUT
+1V≤V
IN
≤6V
I
OUT
= 40mA
-40≤T≤+85
I
OUT
=10mA
f = 1kHz
V
OUT
= V
SS
V
IN
= V
OUT
+1V
－
2
40
10
0.1
mV
%/V
100
ppm
dB
50
600
6
mA
mA
V
NOTE:
1. V
OUT
：Specified
Output Voltage.
2. V
OUT
(E)
：Effective
Output Voltage ( I.e. The Output Voltage When V
IN
= (V
OUT
+1.0V)
And Maintain A Certain I
OUT
Value).
3. V
diff
：The
Difference Of Output Voltage And Input Voltage When Input Voltage Is
Decreased Gradually Till Output Voltage Equals To 98% Of V
OUT
(E).
TYPICAL APPLICATION CIRCUIT
LR6219P
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LESHAN RADIO COMPANY, LTD.
Typical Performance Characteristics
(1) Output Voltage vs Input Voltage
LR6219P30P
LR6219P30P
(2) Input Transient Response 1
LR6219P30P
LR6219P30P
(3) Input Transient Response 2
LR6219P30P
LR6219P30P
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Microcontroller MCU
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