LESHAN RADIO COMPANY, LTD.
Ultra-Fast
High PSRR
High Output Current CMOS Voltage Regulator
LR6208 Series
INTRODUCTION
The LR6208 Series
are a group of
positive voltage regulators manufactured
by CMOS technology with high ripple
rejection, ultra-fast transient response
and low dropout voltage, which provide
large output currents even when the
difference of the input-output voltage is
small. Each of the LR6208 series
consists of a high-precision voltage
reference, an error correction circuit,
and a current limited output driver. Thus
the series are very suitable for the
battery-powered equipments, wireless
communication applications, industry
equipments and so on.
FEATURE
●
Guaranteed Output Current：1.0A（Typ）
●
Low Quiescent Current：90μA（Typ）
●
Output Voltage Range：1.5V½5.0V
●
Input Voltage Range：2.5V½6.0V
●
High Accuracy：±2％（Typ）
●
Dropout Voltage：600mV@1.0A（3.0V Typ）
●
Excellent Line Regulation：0.02％/V
●
High PSRR：50dB (1kHz)
●
Built-in Current Limiter & Thermal Protection
●
Short Circuit Current Fold-back
●
Static safety:：2KV@HBM
●
TC：50ppm/℃
●
Output Capacitor：Ceramic Compatible
APPLICATION
●
Battery powered systems
●
CD/DVD-ROM,CD/RW
●
Portable instrumentations
●
Battery charger
●
Wireless devices
●
PC peripherals
BLOCK DIAGRAM
LR6208
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LESHAN RADIO COMPANY, LTD.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
Power
Dissipation
SOT89-3
SOT223
TO220
SYMBOL
V
IN
I
out
V
out
Pd
Pd
Pd
T
Opr
T
stg
T
solder
Rating
Vss-0.3~Vss+7
UNIT
V
mA
V
mW
mW
mW
℃
℃
2000
V
ss
+0.3~V
IN
+0.3
600
750
3000
-40~+85
-55~+125
260℃, 10s
Operating Temperature
Storage Temperature
Soldering Temperature
& Time
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+1V,C
IN
= C
OUT
= 3.3μF ,Ta = 25℃,unless otherwise specified)
PARAMETER
Output Voltage
Supply Current
Output Current
Dropout Voltage
(Note 3)
Load Regulation
SYMBO
L
V
OUT
(E)
(Note 2)
I
SS
I
OUT
V
dif1
V
dif2
∆V
OUT
∆V
OUT
∆V
IN
*
V
OUT
∆V
OUT
∆T
* V
OUT
I
Short
V
IN
PSRR
T
SD
△T
SD
－
I
OUT
=300mA
I
OUT
=1000mA
V
IN
= V
OUT
+1V,
1mA≤I
OUT
≤1.0A
I
OUT
=10mA
V
OUT
+1V≤V
IN
≤6V
I
OUT
=10mA
-40≤T≤+85
V
OUT
=V
SS
－
I
OUT
=100mA
2.5
50
40
150
30
1000
200
600
30
CONDITIONS
I
OUT
=10mA
MIN.
V
OUT
*0.98
TYP.
V
OUT
90
MAX.
V
OUT
*1.02
120
UNITS
V
μA
mA
mV
mV
mV
Line Regulation
Output Voltage
Temperature
Characteristics
Short Current
Input Voltage
Power Supply
Rejection Rate
1kHz
10kHz
0.02
%/V
50
600
6
ppm
mA
V
dB
℃
℃
Thermal Shutdown
Temperature
Thermal Shutdown
Temperature Hysteresis
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LESHAN RADIO COMPANY, LTD.
NOTE :
1. V
OUT
：Specified
Output Voltage.
2. V
OUT
(E)
：Effective
Output Voltage ( Ie. The Output Voltage When V
IN
= (V
OUT
+1.0V)
And Maintain A Certain I
OUT
Value).
3. V
dif
：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
LR6208
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