LDO REGULATOR with RESET
R5511x SERIES
OUTLINE
NO. EA-111-0407
The R5511x Series are CMOS-based voltage regulator(LDO) ICs equipped with a voltage detector(VD). LDO
function of the R5511x 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 R5511x Series are remarkable improvement on the current regulators in terms of ripple rejection, input
transient response, and load transient response. Furthermore, the R5511x series can supervise input voltage
(the input voltage means the input level for V
DD
or V
SEN
pin) with built-in detector. Thus, the R5511x 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 SON-6, SOT-23-5, SOT-89-5 package, high density mounting of the
ICs on boards is possible.
FEATURES
Low Supply Current ............................................................. Typ. 50碌A(chǔ) (VR)
Low Standby Current ........................................................... Typ. 0.1碌A(chǔ) (VR)
High Ripple Rejection .......................................................... Typ. 75dB (f=1kHz) (VR)
Output Current ..................................................................... Min. 300mA
High Output Voltage Accuracy ..................鹵1.5% (V
OUT
>
2.0V), 30mV(2.0V>V
OUT
>1.5V), 2.0%(1.5V
>
V
OUT
)
=
=
鹵1.5%
(V
DET
>
2.0V), 30mV(2.0V>V
DET
>1.5V), 2.0%(1.5V
>
V
DET
)
=
=
鈥?/div>
Low Dropout Voltage............................................................ Typ. 0.1V (V
OUT
=3.0V,
I
OUT
=100mA)
(VR)
鈥?/div>
Built-in Current Limit Circuits (VR)
鈥?/div>
Low Temperature-drift Coefficient of Output Voltage ........... Typ.
鹵100ppm/擄C
鈥?/div>
Absolute Maximum Voltage ................................................. 6.5V
鈥?/div>
Small Packages ................................................................. SON-6,SOT-23-5, SOT-89-5
鈥?/div>
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)
鈭桪elay
time:120ms/ With or without hysteresis can be designated with user鈥檚 request
鈥?/div>
Ceramic Capacitor Recommendation.................................. C
IN
=C
OUT
=Ceramic
Capacitor 1.0碌F or more.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS
鈥?/div>
CD-drives and DVD-drives
鈥?/div>
Power source for Cellular Phone
1
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英文版
POWER MANAGEMENT ICs MARK INFORMATIONS ME-R5510H-0310
RICOH
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英文版
POWER MANAGEMENT ICs MARK INFORMATIONS ME-R5510H-0310
RICOH electroni...
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英文版
POWER MANAGEMENT ICs MARK INFORMATIONS ME-R5510H-0310
RICOH
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英文版
POWER MANAGEMENT ICs MARK INFORMATIONS ME-R5510H-0310
RICOH electroni...
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