RP105x SERIES
Low Voltage 400mA LDO Regulator
NO.EA-179-131016
OUTLINE
The RP105x Series are 400mA output type CMOS-based voltage regulator ICs with capability of low input
voltage (Min. 0.9V) and low output voltage (Min. 0.6V). These ICs are remarkably improved the performance at
low input voltage compared with conventional low voltage LDOs, and two power supply voltage type. (Another
power source, V
BIAS
pin voltage must be Min. 2.4V). Each of these ICs consists of a voltage reference unit, an
error amplifier, resistor-net for voltage setting, a current limit circuit to avoid the destruction, a UVLO circuit with
monitoring input voltage, and so on.
The RP105x Series have the ultra low on resistance output driver, the on resistance is Typ. 0.4Ω (V
OUT
=0.8V,
I
OUT
=300mA).
The built-in driver is Nch MOSFET, thus the load transient response is excellent, (under the
condition of the current between 1mA and 400mA, tr=0.5μs, the undershoot level is approximately 50mV).
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are
DFN(PLP)1212-6, SOT-23-5 and SC-88A (Non-promotion) therefore high density mounting of the ICs on boards
is possible.
FEATURES
•
Supply Current ............................................................. Typ. 28μA
•
Supply Current (Standby Mode)................................... Typ. 0.1
μA
•
Ripple Rejection........................................................... Typ. 80dB (f=1kHz, V
IN
Ripple)
.....................................................................................Typ.
50dB (f=1kHz, V
BIAS
Ripple)
•
Output Voltage Range.................................................. 0.6V to 1.5V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
•
Input Voltage Range (V
BIAS
).......................................... 2.4V to 5.25V (V
OUT
<
0.8V)
.....................................................................................Set
V
OUT
+1.6V
to 5.25V (V
OUT
≥
0.8V)
•
Input Voltage Range (V
IN
) ............................................ 0.9V to V
BIAS
(V
OUT
<
0.8V)
.....................................................................................Set
V
OUT
+0.1V
to V
BIAS
(V
OUT
≥
0.8V)
•
Output Voltage Accuracy.............................................. Typ.
±15mV
(T
opt
=25°C)
•
Temperature-Drift Coefficient of Output Voltage .......... Typ.
±50ppm/°C
•
Dropout Voltage ........................................................... Typ. 180mV (I
OUT
=400mA,
V
OUT
=1.5V,
V
BIAS
=3.6V)
•
Line Regulation ............................................................ Typ. 0.02%/V
•
Packages ..................................................................... DFN(PLP)1212-6, SC-88A (Non-promotion),
SOT-23-5
•
Built-in Fold Back Protection Circuit ............................ Typ. 120mA (Current at short mode)
•
Ceramic capacitors are recommended........................ C
BIAS
=C
IN
=1.0μF
or more, C
OUT
=2.2μF
or more
APPLICATIONS
•
Power source for battery-powered equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for portable communication equipment.
1
RP105x
NO.EA-179-131016
BLOCK DIAGRAMS
RP105xxxxB
V
BIAS
V
IN
V
OUT
RP105xxxxD
V
BIAS
V
IN
V
OUT
UVLO
Vref
Current Limit
UVLO
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at
the user’s request.
Product Name
RP105Kxx1∗-TR
RP105Qxx2∗-TR-FE
RP105Nxx1∗-TR-FE
Package
DFN(PLP)1212-6
SC-88A
(Non-promotion)
SOT-23-5
Quantity per Reel
5,000 pcs
3,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
xx : The output voltage can be designated in the range from 0.6V(06) to 1.5V(15) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
∗
: CE pin polarity and auto discharge function at off state are options as follows.
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
The products scheduled to be discontinued : "Non-promotion"
These products will be discontinued in the future. We advise you to select other products.
2
RP105x
NO.EA-179-131016
ABSOLUTE MAXIMUM RATINGS
Symbol
V
BIAS
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage (for Driver)
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (DFN(PLP)1212-6)
P
D
∗
∗
∗
Item
Rating
6.0
−0.3
to V
BIAS
+0.3
6.0
−0.3
to V
IN
+0.3
500
400
380
420
−40
to 85
−55
to 125
Unit
V
V
V
V
mA
Power Dissipation (SC-88A) (Non-promotion)
Power Dissipation (SOT-23-5)
mW
°C
°C
T
opt
T
stg
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.
4
RP105x
NO.EA-179-131016
ELECTRICAL CHARACTERISTICS
V
BIAS
=V
CE
=3.6V,
V
IN
=Set
V
OUT
+0.5V,
I
OUT
=1mA,
C
BIAS
=C
IN
=1.0μF,
C
OUT
=2.2μF,
unless otherwise noted.
The specifications surrounded by
are guaranteed by Design Engineering at
−40°C ≤
T
opt
≤
85°C.
T
opt
=25°C
Item
Conditions
T
opt
=25°C
V
OUT
I
OUT
ΔV
OUT
/ΔI
OUT
V
DIF
I
SS
ΔV
OUT
/ΔV
IN
Output Voltage
−40°C ≤
T
opt
≤
85°C
Output Current
Load Regulation
Dropout Voltage
Supply Current
I
OUT
=0mA
V
CE
=0V
2.4V
≤
V
BIAS
≤
5.0V
Set V
OUT
+0.3V ≤
V
IN
≤
2.4V
I
OUT
=30mA,
f=1kHz
V
IN
Ripple 0.2Vp-p
I
OUT
=30mA,
f=1kHz
V
BIAS
Ripple 0.2Vp-p
V
OUT
<
0.8V
V
OUT
≥
0.8V
∗
•
RP105x
Symbol
Min.
Set V
OUT
−15mV
Set V
OUT
−20mV
400
30
Please refer to following data
28
0.1
0.02
0.02
80
40
3.0
0.1
0.1
Typ.
Max.
Set V
OUT
+15mV
Set V
OUT
+20mV
Unit
V
V
mA
1mA
≤
I
OUT
≤
400mA
50
mV
μA
μA
%/V
I
standby
Standby Current
Line Regulation
RR
Ripple Rejection
dB
50
2.4
Set V
OUT
+1.6
0.9
Set V
OUT
+0.1
±50
120
1.0
0.8
0.3
Set V
OUT
Set V
OUT
+50mV +100mV
100
70
50
5.25
5.25
V
BIAS
V
BIAS
ppm
/°C
mA
μA
V
V
V
μs
μVrms
Ω
V
V
V
BIAS
V
IN
ΔV
OUT
/ΔT
opt
I
SC
I
CEPD
V
CEH
V
CEL
Input Voltage
∗
Input Voltage
(for Driver)
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Constant
Current
CE Input Voltage "H"
CE Input Voltage "L"
V
OUT
<
0.8V
V
OUT
≥
0.8V
−40°C ≤
T
opt
≤
85°C
V
OUT
=0V
V
IN UVLO
V
IN
Under Voltage Lock Out I
OUT
=1.0μA
t
delay
en
R
LOW
Detector Delay Time
Output Noise
BM=10Hz to 100kHz
I
OUT
=30mA,
Set V
OUT
=0.6V
Nch On Resistance For auto
V
BIAS
=3.6V,
V
CE
="L"
discharge (only D version)
∗)
If Input Voltage range is between 5.25V and 5.50V, the total operational time must be within 500hrs.
All of units are tested and specified under load conditions such that Tj≈T
opt
=25°C
except for Output Noise, Ripple
Rejection, Output Voltage Temperature Coefficient.
5
国产芯片交流
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
