R1118x Series
Automatic Mode Shift 150mA LDO
The R1118x Series are CMOS-based auto mode switching LDO regulators featuring 150mA output. In auto switching mode, the
operation can switch automatically to fast response mode or low power mode of the ECO function according to output current.
(Automatic switching to fast response mode under I
OUT
> 7mA conditions or to low power mode under I
OUT
< 2mA conditions.) In
lower power mode, supply current is as low as 5.5μA. In fast response mode, ripple rejection is 70dB and noise is low. R1118x
requires neither ECO pin for switching mode nor microcontroller pin. R1118x supports low voltage, featuring input voltage from 1.4V
and output voltage from 0.8V. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic
capacitors can be used.
FEATURES
•
Supply Current (I
SS1
) ·······················Typ. 5.5μA (Low power mode, V
IN
=SET V
OUT
+1V)
•
Supply Current (I
SS2
) ·······················Typ. 50μA (Fast mode, same as above)
•
Standby Current (I
standby
) ·················Typ. 0.1μA (V
IN
=6.0V, CE = "L")
•
Dropout Voltage (V
DIF
) ····················Typ. 0.27V (I
OUT
=150mA, V
OUT
=2.8V)
•
Ripple Rejection (RR)·····················Typ. 70dB (f=1kHz), TYP. 60dB (f=10kHz)
•
Input Voltage Range (V
IN
) ···············1.4V to 6.0V
•
Output Voltage Range (V
OUT
)··········0.8V to 4.2V (internally fixed)
•
Output Voltage Accuracy ················± 1%
•
Temp. coeff. of Output Voltage······· Typ.
±
100ppm/°C
•
Line Regulation ······························ Typ. 0.02%/V
•
Fold-back Protection Circuit··········· Current limit Typ. 40mA
•
Auto-Discharge function················· D Version
•
Packages ······································· DFN(PLP)1612-4B,
•
Ceramic capacitors can be used.··· 1μF or more
SOT-23-5
(The above shows specification at Topt=25
°
C. Design assurance value at -40
°
C
<
Topt
<
85
°
C is also available. For details, please refer to the datasheet.)
=
=
BLOCK DIAGRAMS
R1118xxx1B
(Without Auto-Discharge function)
V
DD
V
OUT
V
DD
R1118xxx1D
(With Auto-Discharge function)
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDES
Package
Quantity per Reel
Part No.
DFN(PLP)1612-4B
5,000 pcs
R1118K.xx.1.
∗
-TR
SOT-23-5
3,000 pcs
R1118N.xx.1.
∗
-TR-F
.xx.
: Specify the output voltage within the range 0.8V(.08.) to 4.2V(.42.)
in 0.1V steps.
.∗
: Select from (.B.) without auto-discharge function or
(.D.) with auto-discharge function.
PACKAGES
DFN(PLP)1612-4B
Top View
4
3
TYPICAL CHARACTERISTIC
SOT-23-5
5
4
R1118x281x
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
Bottom View
3
4
∗
1
2
2
1
1
2
3
1
2
3
4
V
OUT
GND
CE
V
DD
1
2
3
4
5
V
DD
GND
CE
NC
V
OUT
Dropout Voltage V
DIF
(V)
25
50
75
100 125
Output Current I
OUT
(mA)
150
∗
) The tab is substrate level (GND).
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for battery-powered equipment
•
Power source for home appliances
No.EK-175-091101
CMOS LDO Regulator
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example application circuits for the products. The release of such information is not to be
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