STC2G15
BCMOS VOLTAGE REGULATOR DESIGNED FOR USE WITH
VERY LOW ESR AND TANTALUM OUTPUT CAPACITOR
s
s
s
s
s
s
s
s
INPUT VOLTAGE FROM 2.7V TO 5.02V
STABLE WITH LOW ESR CERAMIC AND
TANTALUM CAPACITORS
VERY LOW QUIESCENT CURRENT (30µA
TYP. AT NO LOAD; 2µA IN OFF MODE)
GUARANTEED OUTPUT CURRENT UP TO
15mA
OUTPUT VOLTAGE: 1.5V
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
INTERNAL CURRENT LIMIT
JUNCTION TEMPERATURE RANGE: -40°C
TO 95°C
TSOT23-5L
DESCRIPTION
The STC2G15 provides up to 15mA, from 2.5V to
6V input voltage. The low quiescent current
makes it suitable for low power applications and in
battery powered systems.
Shutdown Logic Control function is available, this
means that when the device is used as local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
The STC2G15 is designed to work with low ESR
ceramic and tantalum capacitors. Typical
applications are in mobile phone, blue-tooth
module and similar battery powered wireless
systems.
SCHEMATIC DIAGRAM
April 2003
1/8
STC2G15
ABSOLUTE MAXIMUM RATINGS
Symbol
V
I
V
O
V
INH
I
O
P
tot
T
stg
T
op
ESD
DC Input Voltage
DC Output Voltage
INHIBIT Input Voltage
Output Current
Power Dissipation
Storage Temperature Range
Operating Junction Temperature Range
Electrostatic Discharge HBM (DH11C)
Parameter
Value
-0.3 to 5.4
-0.3 to V
IN
+0.3
-0.3 to V
IN
+0.3
Internally limited
Internally limited
-55 to +150
-40 to +95
2
°C
°C
kV
Unit
V
V
V
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
Symbol
R
thj-amb
R
thj-case
Parameter
Thermal Resistance Junction-ambient
Thermal Resistance Junction-case
TSOT23-5L
225
81
Unit
°C/W
°C/W
APPLICATION CIRCUITS
CONNECTION DIAGRAM
(top view)
PIN DESCRIPTION
Pin N° Symbol
1
2
3
IN
GND
SHDN
Name and Function
Input Pin
Ground Pin
Shutdown Input: Disables the
regulator when < 0.4V. Not internally
pulled down.
Compensation Pin: Bypass with a
1µF ceramic X7R capacitor to GND
or leave floating if the C
O
is
connected to OUT pin
Output Pin: Bypass with a 1µF
tantalium capacitor to GND if ceramic
X7R capacitoror is not used.
4
CMP
5
OUT
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STC2G15
ORDERING CODES
TYPE
STC2G15
TSOT23-5L
STC2G15R
OUTPUT VOLTAGES
1.5V
ELECTRICAL CHARACTERISTICS
(C
I
= 1µF, C
O
= 1µF (tantalium connected between OUT pin and
GND pin) or C
CMP
= 1µF (ceramic X7R connected between CMP pin and GND pin) (unless otherwise
specified)
Symbol
V
I
V
O
t
RU
t
RD
I
O
I
min
Parameter
Input Voltage
Output Voltage
V
I
= 2.7 to 5.2V
T
J
= -40 to 95
°C
I
O
= 0 to 15mA
Test Conditions
Min.
2.7
1.41
1.5
10
10
15
0
350
100
f = 1KHz
I
O
= 0
I
O
= 0
V
I
= 2.7 to 5.2V
2
2
30
30
60
4
4
0.4
1.15
40
50
80
60
50
B= 1kHz to 1MHz
C
O
= 1µF
10
Typ.
Max.
5.2
1.59
15
15
Unit
V
V
µs
µs
mA
mA
µV/mA
µV/K
dB
µA
µA
µA
µA
V
V
µs
µs
mV
mV
mV
mV
Output Voltage Ramp-Up
I
O
= 0 to 15mA
Time (Note 1)
Output Voltage Ramp-Down I
O
= 0 to 15mA
Time (Note 2)
Current Capability
Minimum Load Current
(Note 3)
Load Regulation (Note 4)
Temperature Drift (Note 4)
Supply Voltage Rejection
(Note 5)
Quiescent Current (ON
mode)
Quiescent Current (OFF
mode)
Shutdown Pin Current
Shutdown Logic Enable
Low
Shutdown Logic Disabled
High
Line Transient Response
Time (Notes 9, 13)
Load Transient Response
Time (Notes 10, 13)
Line Transient Response
Peak + (Notes 9)
Line Transient Response
Peak - (Notes 10)
Load Transient Response
Peak (Notes 11)
Output Noise Voltage
SVR
I
d
I
d
I
SHDN
V
SHDN
V
SHDN
eN
Note 1:Time
for the output Voltage to rise from 50% to 85% of nominal value.
Note 2:
Time for the output Voltage to fall from 85% to 50 of nominal value.
Note 3:
Regulator must be able to sustain Regulated Output Voltage without load.
Note 4:
Parameters are uncritical as long as the output voltage stays within limits.
Note 5:
A sudden voltage rise/drop of 500mV mustn't bring the output Voltage out of limits.
Note 6:
Ceramic Capacitors can be used if connected between CMP pin and GNG, instead of V
OUT
pin and GND.
Note 8:
Maximum and minimum values are guaranteed in full temperature range.
Note 9:
Line transient is tested when the input voltage changes from 2.7 to 3.2V in 10µs in full load range.
Note 10:
Line transient is tested when the input voltage changes from 3.2 to 2.7V in 10µs in full load range.
Note 11:
Load transient is tested when the load changes from 0.1 to 15mA in 10µs in all the input range
Note 13:
Response time is defined as the time form the load line step until the output reaches a value within specification (1.41V, 1.59V).
Note 14:
The maximum power dissipation for the operation depends on the ambient temperature.
For T
J
=95°C, T
A
=85°C and R
TJA
=220°C/W the maximum power can be 0.045W. The maximum power dissipation for operation can be
increased by 4.5mW each degree below T
A
=85°C, and it must be derated by 4.5mW for each degree above 85°C
3/8
STC2G15
TYPICAL PERFORMANCE CHARACTERISTICS
(unless otherwise specified C
IN
= C
COMP
= SMD X5R
C
OUT
= Tant., T
j
= 25°C)
Figure 1 :
Output Voltage vs Temperature
Figure 4 :
Output Voltage vs Temperature
Figure 2 :
Output Voltage vs Temperature
Figure 5 :
Line Regulation vs Temperature
Figure 3 :
Output Voltage vs Temperature
Figure 6 :
Load Regulation vs Temperature
4/8
STC2G15
Figure 7 :
Inhibit Threshold Voltage vs
Temperature
Figure 10 :
Supply Voltage Rejection vs Output
Current
Figure 8 :
Quiescent Current vs Temperature
Figure 11 :
Dynamic Precharge Mode
V
I
=5V, I
O
=0.1 to 15mA, C
I
= 1µFSMD X7R, C
O
=2.2µF(tant)
Figure 9 :
Supply Voltage Rejection vs
Temperature
Figure 12 :
Dynamic Precharge Mode
V
I
=2.7 to 3.7V, I
O
=15mA, C
I
= 1µFSMD X7R, C
O
=2.2µF(tant),
t=1ms
5/8
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