R1170x Series
800mA LDO
The R1170x Series are CMOS-based LDO regulators featuring 800mA output.
The CMOS process provides both high output current and low supply current. The dropout voltage is significantly lower than bipolar
regulators. The CE pin can switch the regulator into standby mode. In addition to a fold-back protection circuit built into conventional
LDO regulators, R1170x has a thermal shutdown circuit. Ceramic capacitors can be used.
FEATURES
•
Supply Current (I
SS
) ····················Typ. 80μA (V
IN
=SET V
OUT
+1V)
•
Standby Current (I
standby
) ·············Typ. 0.1μA (V
IN
=6V, in standby)
•
Dropout Voltage (V
DIF
) ················Typ. 0.12V (I
OUT
=300mA, V
OUT
=2.8V)
•
Ripple Rejection (RR)·················Typ. 50dB (f=1kHz)
•
Input Voltage Range (V
IN
) ···········Max. 6.0V
•
Output Voltage Range (V
OUT
)······1.5V to 5.0V (internally fixed)
•
Output Voltage Accuracy ············± 2%
•
Temp. coeff. of Output Voltage ·······Typ.
±
100ppm/°C
•
Line Regulation·······························Typ. 0.05%/V
•
Fold-back Protection Circuit············Current limit Typ. 40mA
•
Thermal Shutdown Circuit ··············Stops at 150°C
•
Packages ········································HSON-6, SOT-89-5, HSOP-6J
•
Ceramic capacitors can be used. ···10μF or more
BLOCK DIAGRAMS
R1170xxx1A
(
CE
pin "L" active)
V
DD
V
OUT
R1170xxx1B
(CE pin "H" active)
V
DD
V
OUT
Vref
Current Limit
Thermal Shutdown
Vref
Current Limit
Thermal Shutdown
CE
GND
CE
GND
SELECTION GUIDES
Package
HSON-6
SOT-89-5
HSOP-6J
Quantity per Reel
Part No.
3,000 pcs
R1170D.xx.1.
∗
-TR-F
1,000 pcs
R1170H.xx.1.
∗
-T1-F
1,000 pcs
R1170S.xx.1.
∗
-E2-F
.xx.
: Specify the output voltage within the range 1.5V (.15.) to 5.0V (.50.)
in 0.1V steps.
.∗
: Select the polarity of the CE pin from (.A.) "L" active or (.B.) "H" active.
PACKAGES (Top View)
HSON-6
6
5
4
TYPICAL CHARACTERISTIC
HSOP-6J
6
5
4
SOT-89-5
5
4
R1170x301B
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0
Dropout Voltage vs. Output Current
85°C
25°C
-40°C
∗
1
2
3
1
2
3
1
2
3
1
2
3
4
5
6
V
OUT
∗
1
V
OUT
∗
1
CE
or CE
GND
V
DD
∗
1
V
DD
∗
1
1
2
3
4
5
CE
or CE
GND
NC
V
DD
V
OUT
1
2
3
4
5
6
V
OUT
GND
CE
or CE
NC
GND
V
DD
Dropout Voltage V
DIF
(V)
100 200 300 400 500 600 700 800
Output Current I
OUT
(mA)
∗)
The tab and tab suspension leads on back side are substrate level (GND).
∗1)
The V
OUT
pin and V
DD
pin must be wired each other when it is mounted on board.
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances and digital home appliances
•
Power source for laptop personal computers
•
Power source for battery-powered equipment
No.EK-088-091101
CMOS LDO Regulator
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