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R1170D161B-T1 Datasheet

  • R1170D161B-T1

  • 800mA LDO REGULATOR

  • 16頁

  • RICOH

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2001.Jul.21
800mA LDO REGULATOR
R1170X series
s
OUTLINE
The R1170 Series are positive voltage regulator ICs by CMOS process. The R1170 Series have features of
high ripple rejection, low dropout voltage, high output voltage accuracy, low consumption current. Each of these ICs
consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at
short mode, a chip enable circuit, and thermal-shunt circuit. Output Voltage of R1170 is fixed in the IC.
Low consumption current by the merit of CMOS process and built-in transistors with low ON-resistance make
low dropout voltage and chip enable function prolong the battery life. These regulators 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 R1170 Series are suitable for various power sources for portable appliances.
Since the packages for these ICs are the SOT-89-5 package or HSON6, high density mounting of the ICs on
boards is possible.
s
FEATURES
qUltra-Low
Supply Current
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
TYP. 80碌A(chǔ)
qLow
Standby Current
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
TYP. 0.1碌A(chǔ)
qOutput
Current
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
MIN. 800mA(V
IN
=V
OUT
+1.0V)
qOutput
Voltage
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V
qHigh
Output Voltage Accuracy
鈥?鈥?鈥?鈥?/div>
鹵2.0%
qLow
Dropout Voltage
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
TYP. 0.12V(V
OUT
=3.0V, I
OUT
=300mA)
qLine
Regulation
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
TYP. 0.05%/V
qSmall
Package
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
SOT-89-5, HSON6
qBuilt-in
Current Limit Circuit
qBuilt-in
Thermal Shunt Circuit
qLow
Temperature-drift Coefficient of Output Voltage
鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?鈥?/div>
TYP.鹵100ppm/擄C
s
APPLICATIONS
qLocal
Power source for Notebook PC.
qLocal
Power source for portable appliances, cameras, and videos.
qLocal
Power source for equipment of battery-use.
qLocal
Power source for home appliances.
Rev. 1.10
-1-

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