R1130D34A-TR
| Model | R1130D34A-TR |
| Description | Fixed Positive LDO Regulator, 3.4V, 0.28V Dropout, CMOS, PDSO6, HSON-6 |
| PDF file | Total 20 pages (File size: 261K) |
| Chip Manufacturer | RICOH |
2002. Mar. 14
300mA LDO REGULATOR R1130XxxxA/B/C Series
s
OUTLINE
The R1130Xxxxx Series are voltage regulator (VR) ICs by CMOS process. VR function has features of high
ripple rejection, low dropout voltage, high output voltage accuracy, and ultra-low supply current. Each of these
ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, and a current
limit circuit. Each of the R1130xxxxA/B type includes also a chip enable circuit.
Output Voltage of the R1130xxxxC type is adjustable with external resistors.
Output Voltage of R1130xxxxA/B is fixed in the IC. Low supply current by the merit of CMOS process and
built-in transistors with low ON-resistance make low dropout voltage. These regulators in the R1130xxxxx
Series are remarkable improvement on the current regulators in terms of ripple rejection, input transient
response, and load transient response. Maximum Output Current is large for its compact size.
Thus, the R1130xxxxx series are suitable for power supply for CD-drives, DVD-drives, and so forth.
Since the package for these ICs is the SOT-89-5 package or HSON-6P, high density mounting of the ICs on
boards is possible.
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FEATURES
qUltra-Low
Supply Current
• • • • • • • •
TYP. 50µA
qLow
Standby Current
• • • • • • • • • • •
TYP. 0.1µA (VR) for A type
qHigh
Ripple Rejection
• • • • • • • • • •
TYP. 60dB(f=1kHz)(VR)
qOutput
Current
• • • • • • • • • • • • • • •
MIN. 300mA(Vin=Vout+1V)
qOutput
Voltage (VR)
• • • • • • • • • •
Stepwise setting with a step of 0.1V in the range of 1.5 to 5.0V(A/B Version)
(Reference 1.8V(C Version))
qHigh
Output Voltage Accuracy
• • • •
±2.0%(VR) for A/B type,
±2.0%(Reference Voltage for adjustable VR) for C type
qLow
Dropout Voltage
• • • • • • • • • • •
TYP. 0.2V(I
OUT
=100mA)(VR)
qSmall
Packages
• • • • • • • • • • • • • • •
SOT-89-5, HSON-6P
qBuilt-in
Current Limit Circuit
qLow
Temperature-drift Coefficient of Output Voltage
• • • • • • • • •
TYP.±100ppm/°C
qAbsolute
Maximum Voltage
• • • • • •
9V
qInternal
Phase Compensation (small output capacitance such as 0.1uF Ceramic can be used with.)
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APPLICATIONS
qPower
source for CD-drives and DVD-drives, HDD.
qLocal
Power source for Notebook PC.
Rev. 1.11
-1-
