LDO REGULATOR with RESET
The R5511Xxxxx Series are CMOS-based voltage regulator(LDO) ICs equipped with a voltage
detector(VD). LDO function of the R5511Xxxxx has features of high ripple rejection, low dropout voltage, high
output voltage accuracy, and low supply current. Each of these ICs consists of a voltage reference unit, an
error amplifier, resistors for setting output voltage, a current limit circuit, a voltage detector, and a chip
enable circuit. The output of built-in voltage detector is Nch open drain type.(With the mask option CMOS output
type is also available.)
The output voltage and the detector threshold voltage are fixed in the IC. Low supply current by the merit of
CMOS process and the built-in transistor with low ON-resistance make low dropout voltage. These regulators in
the R5511Xxxxx Series are remarkable improvement on the current regulators in terms of ripple rejection, input
transient response, and load transient response. Furthermore, the R5511Xxxxx series can supervise input voltage
(the input voltage means the input level for VDD or VSEN pin) with built-in detector. Thus, the R5511Xxxxx series
are suitable not only for cellular handsets but also for power supply for CD-drives, DVD-drives, and so forth.
Since the packages for these ICs are the SON6, SOT-23-5, SOT-89-5 package, high density mounting of the ICs on
boards is possible.
|
|
|
 Ultra-Low
Supply Current |
TYP.50µA(VR) |
|
|
| Low
Standby Current |
TYP. 0.1µA(VR) |
|
|
| High
Ripple Rejection |
TYP. 75dB(f=1kHz)(VR) |
|
|
| Output
Current |
MIN. 300mA |
|
|
| High
Output Voltage Accuracy |
±1.5%(Vout> 2.0V), 30mV(2.0V>Vout>1.5V),
2.0%(1.5V> Vout),
±1.5%(VDET>2.0V), 30mV(2.0V>VDET>1.5V),
2.0%(1.5V>VDET) |
|
|
| Low
Dropout Voltage |
TYP. 0.1V(IOUT=100mA)(VR) |
|
|
| Small
Package |
SON6, SOT-23-5, SOT-89-5 |
|
|
| Built-in
Current Limit Circuits (VR) |
|
|
| Low
Temperature-drift Coefficient of Output Voltage |
TYP.±100ppm/°C |
|
|
| Absolute
Maximum Voltage |
6.5V |
|
|
Built-in
Reset Delay Circuits
|
A: (Delay time=1ms, Hysteresis5%), B: (Delay time=20ms, Hysteresis5%)
C:
(Delay time; 60ms, Hysteresis5%), D: (Delay time; 240ms, no Hysteresis)
|
| *Delay time:120ms/ With or without hysteresis can be designated with
user’s request |
|
|
Ceramic
Capacitor Recommendation
|
Cin=Cout=Ceramic capacitor 1µF or more. |
|
|
 |
Power source for CD-drives and DVD-drives.
|
|
CD-drives and DVD-drives
|
| * All PDF files are less than 1MB unless otherwise stated. |
| * If you don't have Adobe Reader, you can download free. |
|
 |
Please confirm sample availability with your local contact mentioned in our distributors
list.
| R5511D |
VR |
VD |
Hysteresis |
| 001AC |
2.5 |
2 |
5% |
| 002DD |
2.8 |
2.63 |
none |
| 003DD |
2.85 |
2.63 |
none |
| 005CC |
3 |
2.7 |
5% |
| 006CC |
3.1 |
2.7 |
5% |
| 012AD |
3.3 |
1.9 |
5% |
| 013AD |
3 |
1.9 |
5% |
| 015DD |
3 |
2.63 |
none |
| 021AC |
2.8 |
3 |
5% |
| 024DD |
2.6 |
2 |
5% |
| R5511H |
VR |
VD |
Hysteresis |
| 007BA |
3.3 |
4.2 |
5% |
| 014BA |
1.8 |
1.5 |
5% |
| 016CA |
2.7 |
4 |
5% |
| 017CB |
3.3 |
2.2 |
5% |
| 017DB |
3.3 |
2.2 |
5% |
| 020BA |
1.4 |
2.8 |
5% |
| 025DA |
1.3 |
2.8 |
5% |
| R5511N |
VR |
VD |
Hysteresis |
| 004CB |
3.3 |
3 |
none |
| 008CB |
3.3 |
3 |
5% |
| 009BB |
3.3 |
2.3 |
5% |
| 010AB |
3.3 |
1.6 |
5% |
| 011AB |
3 |
1.6 |
5% |
| 017DB |
3.3 |
2.2 |
5% |
| 018AB |
2.1 |
1.9 |
5% |
| 019AB |
2.2 |
1.9 |
5% |
| 022DB |
3 |
2.2 |
none |
| 023BB |
3.2 |
3 |
none |
| 026AA |
2.5 |
3 |
5% |
|
|
|
|
|
|
Technical Info.
Technical Information on Ricoh Power Management ICs.
|
|
|
 |
|
|
|
|
|
Product Catalog
|
|
| Selection guide is available for download in PDF format. |
|
|
|
|
|
R5511x
Series
