RP201x Series
Automatic Mode Shift 150mA LDO
The RP201x Series are CMOS-based automatic mode shift 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 IOUT>8mA conditions or to low power mode under IOUT<1mA conditions.) In lower
power mode, supply current is as low as 1μA. In fast response mode, ripple rejection is 70dB and noise is low. By inputting control
signal into the AE pin, the mode of the regulator can be fixed with fast response mode. In addition to SOT-23-5 and SC-88A packages,
a 0.69mm square WLCSP-4-P5 package and a 1.2mm square DFN(PLP)1212-6 are also available.
FEATURES
• Supply Current (ISS2)···················Typ. 55μA (Fast mode, VIN=SET VOUT+1V)
• Temp. coeff. of Output Voltage ·······Typ. ± 50ppm/°C
• Supply Current (ISS1)···················Typ. 1.5μA (Low power mode, same as above, VOUT=2.8V) • Line Regulation·······························Typ. 0.02%/V (Fast mode)
• Standby Current (Istandby) ·············Typ. 0.1μA (Same as above, CE="L")
• Dropout Voltage (VDIF) ················Typ. 0.12V (IOUT=150mA, VOUT=2.8V)
• Ripple Rejection (RR)·················Typ. 70dB (Fast mode, f=1kHz)
• Input Voltage Range (VIN)···········1.4V to 5.25V
• Fold-back Protection Circuit ···········Current limit Typ. 50mA
• Auto-Discharge function ·················D Version
• Packages········································WLCSP-4-P5, DFN(PLP)1212-6,
SC-88A, SOT-23-5
• Output Voltage Range (VOUT)······0.8V to 4.0V (internally fixed)
• Output Voltage Accuracy ············± 1%
• Ceramic capacitor can be used. ·····1μF or more
(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
RP201xxxxB
RP201xxxxD
(Without Auto-Discharge function)
(With Auto-Discharge function)
AE
AE
VDD
VDD
VOUT
VOUT
Vref
Vref
Current Limit
Current Limit
CE
CE
GND
GND
WLCSP-4-P5 type does not have
WLCSP-4-P5 type does not have
.
.
SELECTION GUIDES
.
xx
.
: Specify the output voltage within the range 0.8V (
in 0.1V steps.
.
08
.
) to 4.0V (
.
40
.
)
Package
WLCSP-4-P5
DFN(PLP)1212-6
SC-88A
Quantity per Reel
Part No.
5,000 pcs
5,000 pcs
3,000 pcs
3,000 pcs
RP201Z
.
xx.
1.
∗-TR-F
: Select from (
.
B
.
) without auto-discharge function or
.
∗
RP201K
.
xx
.
1
.
∗-TR
(.
D
.
) with auto-discharge function
RP201Q
.
xx.
2.
∗-TR-F
SOT-23-5
RP201N
.
xx
.
1
.
∗-TR-F
PACKAGES (Top View)
TYPICAL CHARACTERISTIC
RP201x26xx Dropout Voltage vs. Output Current
WLCSP-4-P5 DFN(PLP)1212-6
SC-88A
SOT-23-5
5
4
6
5
4
4
3
5
4
350
300
250
200
150
100
50
85°C
25°C
-40°C
1
2
3
1
2
1
2
3
1
2
3
1
2
3
4
VDD
CE
1
2
3
4
5
6
AE
GND
CE
VDD
NC
VOUT
1
2
3
4
5
AE
1
VDD
GND
CE
AE
VOUT
GND
VOUT
VDD
2
3
4
5
GND
VOUT
0
0
25
50
75
100
125
150
CE
Output Current IOUT (mA)
∗) WLCSP-4-P5 does not have AE pin.
APPLICATIONS
• Power source for hand-held communication equipment, camera and VCRs
• Power source for home appliances and digital home appliance
• Power source for battery-powered equipment
No.EK-234-091101
150mA CMOS LDO Regulator
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