R1152N SERIES
High Input Voltage Tolerant Boost Voltage Regulator
NO.EA-108-100402
OUTLINE
The R1152N Series are CMOS-based positive voltage regulator controller ICs with high output voltage
accuracy, low supply current.
The high output current regulator can be composed with this IC, an external power transistor, and capacitors.
Each of these voltage regulator controllers consists of a voltage reference unit, an error amplifier, comparators,
resistors for output voltage setting, a peak current limit protection circuit, a short current limit circuit, and a chip
enable circuit. The output voltage of these ICs is internally fixed.
In addition to low supply current by the merit of CMOS process, the chip enable function prolongs the battery
life.
Maximum operating input voltage is up to 18V, thus these ICs are very suitable for the power supply for
hand-held equipment and other power management applications using various AC adapters.
Since the package for these ICs is SOT-23-5 package, high density mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
Supply Current ..........................................Typ.10μA
Standby Mode ...........................................Typ.0.1μA
Dropout Voltage ....................................... Typ.0.1V(I
OUT
=300mA,V
OUT
=5.0V,Depends
on External Transistor)
Output Voltage Accuracy..........................
±2.0%
Output Voltage ......................................... Internally fixed output voltage : 2.5V to 12.0V (0.1V steps)
Externally adjustable output voltage : the reference voltage is 2.5V
(with external divider resistors can be set more than12.1V)
(
For other voltages, please refer to MARK INFORMATIONS.)
Operating Input Voltage ........................... Max.18V
Package ................................................... SOT-23-5
Built-in Chip Enable Circuit (“H” active)
Built-in Current Limit Circuit
Built-in Output Short Current Limit Circuit
•
•
•
•
•
APPLICATIONS
•
•
•
•
Power source for home appliances such as refrigerators, rice cookers, etc.
Power source for car audio equipment, car navigation system, and ETC system.
Power source for notebook PCs, digital TVs, cordless phones, and LAN system.
Power source for copiers, printers, facsimiles, and scanners.
1
R1152N
PIN CONFIGURATION
•
5
SOT-23-5
4
(mark side)
1
2
3
PIN DESCRIPTIONS
Pin No
1
2
3
4
5
Symbol
CE
GND
V
IN
V
DD
V
OUT
Chip Enable Pin
Ground Pin
Input pin
External Transistor Drive Pin
Voltage Regulator Output Pin
Pin Description
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
SURGE
V
CE
V
OUT
V
EXT
I
EXT
P
D
Topt
Tstg
Input Voltage
SURGE Input Voltage*
2
Input Voltage (CE Pin)
Output Voltage (V
OUT
Pin)
Output Voltage (EXT Pin)
EXT Output Current
Power Dissipation (SOT-23-5*
1
)
Operating Temperature Range
Storage Temperature Range
Item
Rating
20
26
−0.3
to V
IN
+0.3
≤
20
−0.3
to V
IN
+0.3
≤
20
−0.3
to V
IN
+0.3
≤
20
25
420
−40
to
+105
−55
to
+125
Unit
V
V
V
V
V
mA
mW
°C
°C
*1) For Power Dissipation, please refer to PACKAGE INFORMATION.
*2) duration=200ms
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
3
R1152N
ELECTRICAL CHARACTERISTICS
•
R1152NxxxB
Topt=25°C
Symbol
V
OUT
I
OUT
Item
Output Voltage
Output Current
Conditions
V
IN
=Set
V
OUT
+1V
I
OUT
=100mA
Refer to the specification Table
Note1
Min.
×0.980
1
Typ.
Max.
×1.020
Unit
V
A
ΔV
OUT
/ΔI
OUT
Load Regulation
V
DIF
I
SS
Istandby
I
EXTleak
ΔV
OUT
/ΔV
IN
V
IN
I
SC
Ilim
ΔV
OUT
/
ΔTopt
V
CEH
V
CEL
Dropout Voltage
Supply Current
Supply Current (Standby)
EXT Leakage Current
Line Regulation
Input Voltage
Current Limit
Short Current Limit
Output Voltage
Temperature Coefficient
CE Input Voltage "H"
CE Input Voltage "L"
V
IN
=Set
V
OUT
+1V
1mA
<
I
OUT
<
100mA
=
=
I
OUT
=300mA
V
IN
=Set
V
OUT
+1V,
I
OUT
=0mA
V
IN
=18V,CE=0V
Set V
OUT
+0.5V
I
OUT
=100mA
<
=
Refer to the specification table by
output voltage
10
0.1
24
1.0
0.1
μA
μA
μA
%/V
V
mA
μA
ppm
/°C
V
IN
0.3
μA
V
V
IN
<
=
18.0V
0.01
0.10
18
Refer to the specification Table
Base Current I
B
of PNP Tr.
Base Current I
B
of PNP Tr.
V
OUT
=0V
I
OUT
=100mA
−40°C
<
Topt
=
<
=
10
600
±50
2.0
0
25
105°C
Note1: This item depends on the capability of external PNP transistor.
Use low saturation type transistor with h
FE
value range of 100 to 300.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
4
Embedded System
京公网安备 11010802033920号
EEWORLD
