Rx5RZ SERIES
LOW DROPOUT AND LOW NOISE VOLTAGE REGULATOR
NO. EA-039-111020
OUTLINE
The Rx5RZ Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low dropout voltage and high ripple rejection. Each of these voltage regulator ICs consists of a voltage
reference unit, an error amplifier, output voltage setting resistors, a current limit circuit and a chip enable circuit.
(Provided two types of chip enable circuit ; “H” active and “L” active, that can be selected when order.) for A/B
version. The output voltage of these ICs is fixed with high accuracy.
In addition to low supply current from CMOS process, the Rx5RZ Series may lengthen battery life through low
dropout voltage and chip enable function thanks to the built-in low ON resistance transistor. Also when compared
with conventional regulators that employ CMOS process, these ICs have superior ripple rejection, input transient
response characteristic and load transient response characteristic thus making these product suitable for power
supply for hand-held communication equipment.
Since the package for these ICs are the SOT-23-5 package and SOT-89, high density mounting of the ICs on
boards is possible.
FEATURES
•
•
•
•
•
•
•
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Supply Current ............................................................. Typ. 20μA
Supply Current (Standby) ........................................... Typ. 0.1μA
Output Voltage Accuracy..............................................±2%
Ripple Rejection........................................................... Typ. 55dB (f=1kHz)
Dropout Voltage ........................................................... Typ. 0.2V (I
OUT
=60mA)
Temperature-Drift Coefficient of Output Voltage .......... Typ.
±
100ppm/°C
Line Regulation ............................................................ Typ. 0.05%/V
Output Voltage Range.................................................. 2.0V to 6.0V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
•
Packages ..................................................................... SOT-23-5 (Mini-mold), SOT-89 (Mini-power Mold)
•
Built-in Fold-Back Protection Circuit ............................ Current limit Typ. 50mA
APPLICATIONS
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Power source for battery-powered equipment
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances
1
Rx5RZ
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
T
opt
T
stg
Input Voltage
Input Voltage (
CE
or CE)
Output Voltage
Output Current
Power Dissipation
Power Dissipation
∗
∗
Item
Rating
9.0
−0.3
to V
IN
+0.3
−0.3
to V
IN
+0.3
150
Unit
V
V
V
mA
mW
°C
°C
(SOT-23-5)
(SOT-89)
420
900
−40
to 85
−55
to 125
Operating Temperature Range
Storage Temperature Range
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
4
ADI Reference Circuit
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