ST6205
Low ESR Low Power High-Speed CMOS LDO
DESCRIPTION
ST6205 series are highly precise, low noise, positive voltage LDO regulators
manufactured using CMOS processes, The series achieves high ripple rejection and low
dropout and consists of a standard voltage source, an error correction, current limiter
and a phase compensation circuit plus a driver transistor. Output voltage is selectable
in 50mV increments within a range of 1.5V~5.0V. The series is also compatible with
low ESR ceramic capacitors which give added output stability. This stability can be
maintained even during load fluctuations due to the excellent transient response of the
series. The current limiter’s feedback circuit also operates as a short protect for the
output current limiter and the output pin. The CE function enables the output to be
turned off, resulting in greatly reduced power consumption. ST6205 family is
compatible with low ESR capacitors. The current limiter’s feedback circuit also operates
as a short protect for the output current limiter.
PIN CONFIGURATION
SOT-23-3L / SOT-323
3
V
IN
V
SS
1
1.V
SS
V
OUT
2
2.V
OUT
3.V
IN
APPLICATIONS
Battery Power Equipment
Cellular Phone
Digital Cameras
Computer Disk Drivers
Portable games
Communiction tools
PART MARKING
SOT-23-3L / SOT-323
3
FEATURE
Highly Accurate +/-2%
Dropout Voltage 300mV @100mA (3.0V type)
High Ripple Rejection 70dB (10kHz)
Low Power Consumption 20uA (TYP)
Maximum Output Current 150mA
Standby Current less than 0.1uA
Internal protector current limiter and short
protector
Small packages SOT-23-3L / SOT323, and other
required
5XYA
1
2
X: Voltage Code
Y: Year Code
A: Process Code
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST6205 2007. Rev. 1
ST6205
Low ESR Low Power High-Speed CMOS LDO
ORDERING INFORMATION
Part Number
ST6205XS23RG
ST6205XS32RG
Package
SOT-323
SOT-23-3L
Part Marking
5XYA
5XYA
※
Process Code : A ~ Z ; a ~ z
※
ST6205XS23RG X : Voltage Code S : SOT-23-3L ; R : Tape Reel ; G : Pb – Free
※
ST6205XS32RG X : Voltage Code S : SOT-323 ; R : Tape Reel ; G : Pb – Free
PIN DESCRIPTION
SOT-23-3L
1
2
3
SOT-323
1
2
3
Symbol
V
SS
V
OUT
V
IN
Description
Ground
Voltage Input
Voltage Output
VOLTAGE CODE INFORMATION
Voltage Code (X)
A
B
C
F
Output Voltage (V)
1.8
2.5
2.8
3.3
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST6205 2007. Rev. 1
ST6205
Low ESR Low Power High-Speed CMOS LDO
APPLCATION CIRCUT
BLOCK DIAGRAM
ABSOULTE MAXIMUM RATINGS
(T
A
=25℃ unless otherwise specified)
Parameter
Input Voltage
Output Current
Output Voltage
Thermal Resistance
Power Dissipation
Operation Junction Temperature
Range
Storgae Temperature Range
Ө
JA
P
D
Symbol
V
IN
I
OUT
V
OUT
SOT-23-3L
SOT-323
SOT-23-3L
SOT-323
T
J
T
STG
Value
7
500
V
SS
-0.3V~V
IN
+0.3V
120
105
1250
950
-40 ~ +85
-55 ~ +125
Unit
V
mA
mA
℃/W
mW
℃
℃
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST6205 2007. Rev. 1
ST6205
Low ESR Low Power High-Speed CMOS LDO
ELECTRICAL CHARACTERISTICS
(T
A
= 25
℃
unless otherwise specified)
Parameter
Output Voltage
Maximum Output Current
Load Regulation
Dropout Voltage
Supply Current
Symbol
V
OUT
(E)
I
OUT
△V
OUT
Vdif 1
Vdif 2
I
DD
Condition
V
IN
=V
OUT
+1.0V
,
I
OUT
=
30mA
V
IN
≧V
OUT
+1.0V
V
OUT (T)
＞1.8V
:
1mA≦I
OUT
≦100mA
I
OUT
=30mA
I
OUT
=100mA
V
IN=
5V
Min
Typ
Max
Unit
V
mA
x 0.98 V
OUT(T)
x 1.02
300
25
E2
E3
1.5
V
OUT(T)
X1%
mV
mV
mV
uA
E2
E3
3.0
Line Regulations
Input Voltage
V
OUT(T)
＜4.5V
:
V
OUT(T)
+1.0V≦V
IN
≦6V
V
OUT
/ (
△V
IN
–
V
OUT(T)
≧
4.5V :
V
OUT
)
5.5V≦V
IN
≦6.0V
I
OUT
= 30mA
VIN
△V
OUT
I
OUT
=30mA
/(△Topr–V
OUT
) -40℃≦Topr≦85℃
0.05
0.25
%/V
1.8
±100
40
E4
7.0
V
ppm/℃
Output Voltage
Temperature
Characteristics
Ripple-Rejection
Current Limiter
|PSRR|
Ishort
V
IN
=V
OUT
+1.0V,
f=1KH
Z
, Vrip=0.5Vrms,
I
OUT
=60mA
V
IN
=V
OUT
+1.5V,
V
OUT
=V
SS
dB
mA
(NOTE 1) VOUT(T) = Specified Output Voltage
(NOTE 2) V
OUT(E)
= Effective Output Voltage (le. The output voltage when “V
OUT(T)
+1.0V" is provided at the
V
IN
pin while maintaining a certain I
OUT
value.)
(NOTE 3) Vdif = {V
IN 1
(NOTE5) + V
OUT 1
(NOTE4)}
(NOTE 4) V
OUT1
= A voltage equal to 98% of the Output Voltage whenever an amply stabilized I
OUT
{V
OUT(T)
+ 1.0V} is Input.
(NOTE 5) V
IN 1
= The Input Voltage when V
OUT 1
appears as Input Voltage is gradually decreased.
(NOTE 6) Unless otherwise stated, VIN = VOUT(T)+1.0V
VOUT (2%)
Min
1.5
1.8
2.5
3.0
3.1
3.3
1.47
1.76
2.45
2.94
3.03
3.23
Max
1.53
1.86
2.55
3.06
3.16
3.36
E1
IOUT
Min
200
250
250
250
250
250
E2
Vdif1
Typ
350
90
65
40
40
35
Max
500
150
120
100
100
100
Typ
750
250
200
150
150
140
E3
Vdif2
Max
850
350
300
200
200
200
E4
Ishort
Typ
155
130
115
80
80
80
VOUT
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST6205 2007. Rev. 1
ST6205
Low ESR Low Power High-Speed CMOS LDO
TEST CIRCUIT
Circuit 1 :
Circuit 2 :
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST6205 2007. Rev. 1
