RP150K Series
Dual 300mA LDO
The RP150K Series are CMOS-based dual output LDO regulators featuring 300mA output. RP150K features supply current as low as
24μA per output, which is substantially lower compared to existing lines. Due to a built-in 0.7Ω (at V
SET
=2.8V) on-resistor, RP150K can
provide a low dropout voltage. RP150K also features an excellent line transient response, ripple rejection at 80dB, and low noise. The
output voltage accuracy is as high as
±
1% and the temperature drift coefficient of output voltage is low at
±
30ppm/°C. RP150K is
available in RoHS compliant DFN(PLP)2020-8 package.
FEATURES
•
Supply Current (I
SS
) ························ Typ. 24μA
×
2 (V
IN
=V
SET
+1.0V)
•
Standby Current (I
standby
) ················· Typ. 0.1μA
×
2 (Same as above, CE1/CE2="L")
•
Dropout Voltage (V
DIF
) ···················· Typ. 0.21V (I
OUT
=300mA, V
SET
=2.8V)
•
Ripple Rejection (RR)····················· Typ. 80dB (f=1kHz)
•
Input Voltage Range (V
IN
) ··············· 2.5V to 5.25V
•
Output Voltage Range (V
OUT
)·········· 1.5V to 3.3V
∗
(Internally fixed)
•
Output Voltage Accuracy ················± 1%
•
Temp. coeff. of Output Voltage ·······Typ.
±
30ppm/°C
•
Line Regulation·······························Typ. 0.02%/V
•
Fold-back Protection Circuit ···········Current limit Typ. 50mA
•
Auto-discharge Function·················B Version
•
Package··········································DFN(PLP)2020-8
•
Ceramic capacitors can be used. ···1μF or more
∗
) For information about combination of the output voltage, please check our website.
BLOCK DIAGRAMS
RP150KxxxA
(Without Auto-discharge function)
V
OUT1
R1_1
R1_1
RP150KxxxB
(With Auto-discharge function)
V
OUT1
CE1
Error
Amp
Vref
Current Limit
R2_1
CE1
Error
Amp
Vref
Current Limit
R2_1
GND
V
DD
R1_2
Error
Amp
Vref
Current Limit
R2_2
Error
Amp
Vref
R2_2
Current Limit
GND
V
DD
R1_2
CE2
V
OUT2
CE2
V
OUT2
SELECTION GUIDE
Halogen Free
Package
DFN(PLP)2020-8
Q'ty per Reel
Part No.
.xxx
: Specify a combination of output voltage for each output using serial
numbers.
: Select from (.A.) without auto-discharge function or
.∗
(.B.) with auto-discharge function.
5,000 pcs RP150K.xxx∗ -TR
PACKAGE
DFN(PLP)2020-8
Top View
8
7
6
5
TYPICAL CHARACTERISTIC
RP150K (VR1/VR2)
Output Voltage vs. Operating Temperature
3.34
V
IN
=4.3V, V
SET
=3.3V, I
OUT
=1mA
Bottom View
5
6
7
8
∗
Output Voltage V
OUT
(V)
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
-50
-25
0
25
50
75
Temperature Topt (°C)
100
1
2
3
4
4
3
2
1
1
2
3
4
5
6
7
8
CE1
GND
CE2
NC
NC
V
OUT2
V
DD
V
OUT1
Chip Enable Pin 1
Ground Pin
Chip Enable Pin 2
No Connection
No Connection
Output Pin 2
Input Pin
Output Pin 1
∗
) The tab is substrate level (GND).
APPLICATIONS
•
Power source for hand-held communication equipment
•
Power source for cameras, VCRs, and video cameras.
•
Power source for battery-powered equipment
No.EK-131-121001
Dual CMOS LDO Regulator
1. The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
information thereon.
2. The materials in this document may not be copied or otherwise reproduced in whole or in part
without prior written consent of Ricoh.
3. Please be sure to take any necessary formalities under relevant laws or regulations before
exporting or otherwise taking out of your country the products or the technical information
described herein.
4. The technical information described in this document shows typical characteristics of and
example application circuits for the products. The release of such information is not to be
construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual
property rights or any other rights.
5. The products listed in this document are intended and designed for use as general electronic
components in standard applications (office equipment, telecommunication equipment,
measuring instruments, consumer electronic products, amusement equipment etc.). Those
customers intending to use a product in an application requiring extreme quality and reliability,
for example, in a highly specific application where the failure or misoperation of the product
could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system,
traffic control system, automotive and transportation equipment, combustion equipment, safety
devices, life support system etc.) should first contact us.
6. We are making our continuous effort to improve the quality and reliability of our products, but
semiconductor products are likely to fail with certain probability. In order to prevent any injury to
persons or damages to property resulting from such failure, customers should be careful enough
to incorporate safety measures in their design, such as redundancy feature, firecontainment
feature and fail-safe feature. We do not assume any liability or responsibility for any loss or
damage arising from misuse or inappropriate use of the products.
7. Anti-radiation design is not implemented in the products described in this document.
8. Please contact Ricoh sales representatives should you have any questions or comments
concerning the products or the technical information.
Halogen Free
For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.
Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are
also Antimony Free.)
RICOH COMPANY, LTD.
Electronic Devices Company
http://www.ricoh.com/LSI/
RICOH COMPANY, LTD.
Electronic Devices Company
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