RP173K151B-TR [RICOH]
Output Current Typ. 150mA;型号: | RP173K151B-TR |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Output Current Typ. 150mA |
文件: | 总22页 (文件大小:847K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
RP173x SERIES
11V Input 150mA LDO
OUTLINE
NO.EA-256-111020
The RP173x Series are CMOS-based voltage regulator ICs featuring 150 mA output and low supply current of
Typ.2.0μA. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage
setting, a current limit circuit, a chip enable circuit and a Reverse Current Protection Circuit. RP173x Series are
suitable for the power source such as the equipment being in the standby-mode. A version with /CE input pin has
reduced CE pull-up resistance to make its supply current ultra low.
The RP173x Series have Max.11V Input voltage and are applicable to the portable communication equipment
that require the 2-cell Li-ion battery. Also they are applicable to the non-portable communication equipments. As
this series includes Reverse Current Protection Circuit, there is little leakage current, if it's used as back-up
circuit.
Since the packages for these ICs are the SOT-23-5 package, SC-88A, or DFN(PLP)1010-4 of 1mm square,
high density mounting of the ICs on boards is possible.
FEATURES
• Output Current ............................................................. Typ. 150mA
• Supply Current............................................................. Typ. 2.0μA
• Standby Current........................................................... Typ. 0.2μA
• Input Voltage Range .................................................... 2.5V to Set VOUT+6.5V (Max.11V)
• Output Voltage Range.................................................. 1.2V to 5.5V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Dropout Voltage ........................................................... Typ. 0.13V ( IOUT=30mA, VOUT=3.0V)
Typ. 0.90V ( IOUT=150mA, VOUT=3.0V)
• Output Voltage Accuracy.............................................. ±1.0%(1.5V < VOUT ≤ 5.5V, Topt=25°C)
• Temperature-drift Coefficient of Output Voltage........... Typ. ±100ppm/°C
• Line Regulation............................................................ Typ. 0.02%/V
• Packages ..................................................................... DFN(PLP)1010-4, SC-88A, SOT-23-5
• Built-in Reverse Current Protection Circuit
• Short Current Limit....................................................... Typ. 45mA
• Built-in Peak Current Limit Circuit
• Output capacitors......................................................... 0.1μF or more
APPLICATIONS
• Power source for portable communication equipments.
• Power source for battery-powerd equipments.
• Power source for electrical appliances such as cameras, VSRs and camcorders.
• Power source for digital home appliances.
1
RP173x
BLOCK DIAGRAMS
RP173xxxxA
RP173xxxxB
VDD
VDD
VOUT
VOUT
Vref
Vref
Current Limit
Current Limit
Reverse
Detector
Reverse
Detector
CE
CE
GND
GND
(Pull-up resistance is not built-in.)
RP173xxxxD
VDD
VOUT
Vref
Current Limit
Reverse
Detector
CE
GND
SELECTION GUIDE
The output voltage, auto discharge function, package for the ICs can be selected at the user’s request.
Product Name
RP173Kxx1∗-TR
Package
DFN(PLP)1010-4
SC-88A
Quantity per Reel
10,000 pcs
Pb Free
Yes
Halogen Free
Yes
Yes
Yes
3,000 pcs
Yes
RP173Qxx2∗-TR-FE
RP173Nxx1∗-TR-FE
SOT-23-5
3,000 pcs
Yes
xx: The output voltage can be designated in the range of 1.2V (12) to 5.5V (55) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
∗ : The auto discharge function at off state are options as follows.
(A) "L" acrive, without auto discharge function at off state (Pull-up resistance is not built-in.)
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
2
RP173x
PIN CONFIGURATIONS
•
DFN(PLP)1010-4
•
SC-88A
•
SOT-23-5
Top View
Bottom View
5
4
5
4
4
3
3
2
4
1
∗
(mark side)
(mark side)
1
2
1
2
3
1
2
3
PIN DESCRIPTIONS
zDFN(PLP)1010-4
Pin No.
Symbol
VOUT
Description
1
2
3
4
Output Pin
GND
Ground Pin
Chip Enable Pin
Input Pin
CE
/CE
VDD
∗) Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
zSC-88A
Pin No.
Symbol
CE
Description
1
2
3
4
5
Chip Enable Pin
No Connection
Ground Pin
Output Pin
/CE
NC
GND
VOUT
VDD
Input Pin
zSOT-23-5
Pin No.
Symbol
VDD
Description
1
2
3
4
5
Input Pin
GND
Ground Pin
Chip Enable Pin
No Connection
Output Pin
CE
/CE
NC
VOUT
3
RP173x
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
12
Unit
V
VIN
Input Voltage
VCE
Input Voltage (CE pin)
Output Voltage
12
V
VOUT
IOUT
V
−0.3 to 6.0
165
Output Current
mA
Power Dissipation
Power Dissipation
Power Dissipation
(DFN(PLP)1010-4)*
(SC-88A)*
400
PD
mW
380
(SOT-23-5)*
420
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
−40 to +85
−55 to +125
°C
°C
∗) 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
RP173x
ELECTRICAL CHARACTERISTICS
Unless otherwise noted,VIN=Set VOUT +1.0V(VOUT >1.5), IOUT=1mA,CIN=COUT=0.1μF.
The values in
are applicable under the condition of −40°C ≤ Topt ≤ 85°C.
• RP173xxxxA
Topt=25°C
Symbol
Item
Conditons
Min.
×0.99
−15
Typ.
Max.
×1.01
15
Unit
V
VOUT>1.5V
Topt=25°C
VOUT ≤ 1.5V
VOUT>1.5V
VOUT ≤ 1.5V
mV
VOUT
Output Voltage
V
×0.982
×1.018
−40°C ≤ Topt ≤ 85°C
mV
mA
mV
−
28
27
IOUT
ΔVOUT/ΔIOUT
VDIF
Output Current
Load Regulation
Dropout Voltage
Supply Current
150
0.1mA ≤ IOUT ≤ 150mA
35
−30
−3
Refer to the "Dropout Voltage"
2.0
ISS
3.7
0.6
IOUT=0mA
μA
μA
VIN=VIN(Max.)
VCE=0V
Istandby
Standby Current
0.2
Set VOUT+0.5V ≤ VIN ≤ VIN(Max.)
When VOUT ≤ 2.0V,
2.5V ≤ VIN ≤ VIN(Max.)
Load Regulation
0.02
30
0.20
%/V
ΔVOUT/ΔVIN
f=1kHz,
Rippke 0.2Vp−p,IOUT=10mA
※When VOUT<2.0V,VIN=3.0V
RR
Ripple Rejection
Input Voltage
dB
V
1.2 ≤ VOUT < 4.5
4.5 ≤ VOUT ≤ 5.5
2.5
2.5
Vset+6.5
VIN
11
ppm
/℃
Output Voltage
Temperature Coefficient
ΔVOUT/ΔTopt
−40°C ≤ Topt ≤ 85°C
VOUT=0V
±100
ISC
Short Current Limit Circuit
45
mA
V
VCEH
VCEL
IREV
1.7
CE
CE
Input Voltage"H"
Input Voltage"L"
0.8
V
Reverse Current
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
0
0.16
μA
Reverse Current
Protection Mode
Detection Offset,
VREV=VDD−VOUT
Reverse Current
Protection Mode
Release Offset
VREV_DET*
VREV_REL*
55
100
120
mV
mV
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
70
The values in
have been tested and guaranteed by Design Engineering.
All of units are tested and specified under the pulse load conditions such that Tj≈Topt 25°C except for Ripple
Rejection and Output Voltage Temperature Coefficient.
*) The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5V. However, under the
condition of VIN=VOUT=0V, always the Reverse Current Protection Circuit is operating.
5
RP173x
Unless otherwise noted,VIN=Set VOUT +1.0V(VOUT >1.5), IOUT=1mA, CIN=COUT=0.1μF.
The values in
are applicable under the condition of −40°C ≤ Topt ≤ 85°C.
• RP173xxxxB/D
Topt=25°C
Symbol
Item
Conditons
Min.
×0.99
−15
Typ.
Max.
×1.01
15
Unit
V
VOUT>1.5V
Topt=25°C
VOUT ≤ 1.5V
VOUT>1.5V
VOUT ≤ 1.5V
mV
VOUT
Output Voltage
V
×0.982
×1.018
−40°C ≤ Topt ≤ 85°C
mV
mA
mV
−
28
27
IOUT
ΔVOUT/ΔIOUT
VDIF
Output Current
Load Regulation
Dropout Voltage
Supply Current
150
0.1mA ≤ IOUT ≤ 150mA
35
−30
−3
Refer to the "Dropout Voltage"
2.0
ISS
3.7
0.6
IOUT=0mA
μA
μA
VIN=VIN_Max.
VCE=0V
Istandby
Standby Current
Load Regulation
0.2
Set VOUT+0.5V≦VIN≦VIN_Max.
When VOUT ≤ 2.0V,
2.5V ≤ VIN ≤ Set VOUT+6.5V
0.02
30
0.20
%/V
ΔVOUT/ΔVIN
f=1kHz,
RR
Ripple Rejection
Input Voltage
dB
V
Rippke 0.2Vp−p,IOUT=10mA
※When VOUT<2.0V,VIN=3.0V
1.2 ≤ VOUT < 4.5
4.5 ≤ VOUT ≤ 5.5
2.5
2.5
Vset+6.5
VIN
11
ppm
/℃
Output Voltage
Temperature Coefficient
ΔVOUT/ΔTopt
−40°C ≤ Topt ≤ 85°C
VOUT=0V
±100
ISC
IPD
Short Current Limit Circuit
CE Pull-down Current
CE Input Voltage"H"
CE Input Voltage"L"
Reverse Current
45
mA
μA
V
0.30
0.90
VCEH
VCEL
IREV
1.7
0.8
V
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
0
0.16
μA
Reverse Current
Protection Mode
Detection Offset,
VREV=VDD−VOUT
Reverse Current
Protection Mode
Release Offset
VREV_DET*
55
100
120
mV
VREV_REL*
RLOW
0 ≤ VIN ≤ 11.0V, VOUT ≥ 1.5V
70
mV
Autodischarge Nch Tr.
ON Resistance
(D Version only)
380
VIN=7.0V, VCE=0V
Ω
The values in
have been tested and guaranteed by Design Engineering.
All of units are tested and specified under the pulse load conditions such that Tj≈Topt=25°C except for Ripple
Rejection and Output Voltage Temperature Coefficient.
*) The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5V. However, under the
condition of VIN=VOUT=0V, always the Reverse Current Protection Circuit is operating.
6
RP173x
• Dropout Voltage
Topt=25°C
Dropout Voltage VDIF (V)
Output Voltage
VOUT (V)
Condition
Typ.
1.68
1.63
1.48
1.16
0.90
0.61
0.39
Max.
2.59
2.49
2.23
2.19
1.47
1.05
0.76
1.2 ≤ VOUT < 1.3
1.3 ≤ VOUT < 1.5
1.5 ≤ VOUT < 1.8
1.8 ≤ VOUT < 2.3
2.3 ≤ VOUT < 3.0
3.0 ≤ VOUT < 4.0
4.0 ≤ VOUT ≤ 5.5
IOUT=150mA
The values in
are applicable under the condition of −40°C ≤ Topt ≤ 85°C.
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.
7
RP173x
TYPICAL APPLICATIONS
VOUT
VDD
VOUT
RP173x
Series
C1
C2
CE
GND
External Parts Example:
C2: Ceramic Capacitor 0.1µF, Murata,GRM155B31C104KA87D
TECHNICAL NOTES
When using the ICs, please note the following points.
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a 0.1μF or more capacitor C2.
In case of using a tantalum capacitor, the output may be unstable due to inappropriate ESR. Therefore, the full
range of operating conditions for the capacitor in the application should be considered.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 with a capacitance value as much as 0.1μF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring
as short as possible.
POWER ACTIVATION
If the ICs are started up with VIN and VCE under the no-load condition, the both pin voltages have to be started
up with faster than 2.0V/s. If the IC is started up with slower than 2.0V/s under the no-load condition, start up the
IC only with VCE.
8
RP173x
REVERSE CURRENT PROTECTION CIRCUIT
The RP173 Series include a Reverse Current Protection Circuit, which stops the reverse current from VOUT pin
to VDD pin or to GND pin when VOUT becomes higher than VIN.
Usually, the LDO using Pch output transistor contains a parasitic diode between VDD pin and VOUT pin.
Therefore, if VOUT is higher than VIN, the parasitic diode becomes forward direction. As a result, the current flows
from VOUT pin to VDD pin.
The ICs of this series switches the mode to the reverse current protection mode before VIN becomes lower
than VOUT by connecting the parasitic diode of Pch output transistor to the backward direction, and connecting
the gate to VOUT pin. As a result, the Pch output transistor is turned off and the all the current pathways from VOUT
pin to GND pin are shut down to maintain the reverse current lower than [IREV] of the Electrical Characteristics.
Switching to either the normal mode or to the reverse current protection mode is determined by the magnitude
of VIN voltage and VOUT voltage. For the stable operation, offset and hysteresis are set as the threshold. The
detection/ release thresholds of both normal and reverse current protection modes are specified by [VREV_DET]
and [VREV_REL] of the Electrical Characteristics. Therefore, the minimum dropout voltage under the small load
current condition is restricted by the value of [VREV_REL].
Fig.1 and Fig.2 show the diagrams of each mode, and Fig.3 shows the load characteristics of each mode.
When giving the VOUT pin a constant-voltage and decreasing the VIN voltage, the dropout voltage will become
lower than the [VREV_DET]. As a result, the reverse current protection starts to function to stop the load current. By
increasing the dropout voltage higher than the [VREV_REL], the protection mode will be released to let the load
current to flow. If the dropout voltage to be used is lower than [VREV_REL], the detection and the release may be
repeated.
The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5V. However, under the condition
of VIN=0V, always the reverse current protection mode is operating.
Fig. 1 Normal Mode
Fig. 2 Reverse Current Protection Mode
VIN
VREV_REL
VREV_DET
VOUT
IOUT
Normal Mode
Reverse Current Protection Mode
Normal Mode
0
IREV
Fig. 3 Reverse Current Protection Mode Detection/ Release &
Reverse Current/ Output Current Characteristics
9
RP173x
TEST CIRCUITS
VDD
VOUT
RP173x
Series
V
C1
C2
I
OUT
VOUT
CE
GND
C1=Ceramic 0.1μF
C2=Ceramic 0.1μF
Basic Test Circuit
VOUT
V
DD
V
OUT
RP173x
Series
A
C1
C2
ISS
CE GND
C1=Ceramic 0.1μF
C2=Ceramic 0.1μF
Supply Current Test Circuit
Pulse
Generator
VDD
V
OUT
RP173x
Series
C2
IOUT
P.G.
CE GND
C2=Ceramic 0.1μF
Ripple Rejection Test Circuit
V
OUT
VDD
V
OUT
RP173x
Series
C1
C2
CE
GND
IOUTa
I
OUTb
C1=Ceramic 0.1μF
C2=Ceramic 0.1μF
Load Transient Response Test Circuit
10
RP173x
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (C =Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
1
RP173x12xx
RP173x18xx
1.4
1.2
1.0
0.8
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Vdd=2.8V
Vdd=3.8V
Vdd=5.5V
Vdd=8.3V
0.6
Vdd=2.5V
Vdd=3.2V
Vdd=4.2V
Vdd=5.5V
Vdd=7.7V
0.4
0.2
0
0
0
100
200
300
400
0
100
200
300
400
Output Current IOUT (mA)
Output Current IOUT (mA)
RP173x30xx
RP173x55xx
3.5
3.0
2.5
2.0
1.5
1.0
0.5
6
5
4
3
2
1
Vdd=6.5V
Vdd=11V
Vdd=4V
Vdd=5.5V
Vdd=9.5V
0
0
0
100
200
300
400
0
100
200
300
400
Output Current IOUT (mA)
Output Current IOUT (mA)
2) Output Voltage vs. Input Voltage (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
RP173x12xx RP173x18xx
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.4
1.2
1.0
0.8
0.6
0.4
0.2
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0
0
0
2
4
6
0
2
4
6
8
Input Voltage VIN (V)
Input Voltage VIN (V)
11
RP173x
RP173x30xx
RP173x55xx
3.5
6
5
4
3
2
1
0
3.0
2.5
2.0
1.5
1.0
0.5
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
0
0
2
4
6
8
0
2
4
6
8
10
Input Voltage VIN (V)
Input Voltage VIN (V)
3) Supply Current vs. Input Voltage (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
RP173x12xx
RP173x18xx
2.5
2.0
1.5
1.0
0.5
2.5
2.0
1.5
1.0
0.5
0
0
0
2
4
6
0
2
4
6
8
Input Voltage VOUT (V)
Input Voltage VOUT (V)
RP173x30xx
RP173x55xx
2.5
2.0
1.5
1.0
0.5
2.5
2.0
1.5
1.0
0.5
0
0
0
2
4
6
8
0
2
4
6
8
10
Input Voltage VOUT (V)
Input Voltage VOUT (V)
12
RP173x
4) Output Voltage vs. Temperature (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, IOUT=1mA)
RP173x12xx RP173x18xx
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
RP173x30xx
RP173x55xx
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
5.56
5.54
5.52
5.50
5.48
5.46
5.44
5.42
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt (°C)
Temperature Topt (°C)
5) Dropout Voltage vs. Output Current (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF)
RP173x12xx RP173x30xx
2000
1800
1600
1400
1200
1000
800
800
700
600
500
400
300
200
100
0
85
25
℃
℃
-40
℃
85
25
℃
600
℃
400
-40
℃
200
0
0
25
50
75
100 125 150
0
25
50
75
100
125
150
Output Current IOUT (mA)
Output Current IOUT (mA)
13
RP173x
RP173x55xx
500
450
400
350
300
250
200
150
100
50
85
℃
25
℃
-40
℃
0
0
25
50
75
100 125 150
Output Current IOUT (mA)
6) Dropout Voltage vs. Set Output Voltage (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
RP173x
1800
1600
1400
1200
Iout=150mA
1000
Iout=50mA
800
600
400
200
0
Iout=30mA
0
1
2
3
4
5
6
Set Output Voltage VREG (V)
7) Minimum Operating Voltage (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=−40~85°C)
4.0
3.5
3.0
2.5
2.0
0
25
50
75
100
125
150
Output Current IOUT (mA)
14
RP173x
8) Ripple Rejection vs. Input Vias Voltage
(
C1
=
none, C2
=
Ceramic 0.1
μ
F, Ripple=0.2Vp-p, Topt=25°C)
RP173x28xx
RP173x28xx
IOUT=1mA
IOUT=30mA
60
60
50
40
30
20
10
50
40
30
100Hz
1kHz
10kHz
100kHz
20
100Hz
1kHz
10kHz
100kHz
10
0
0
2
2
4
6
8
10
4
6
8
10
Input Bias Voltage VIN (V)
Input Bias Voltage VIN (V)
RP173x28xx
IOUT=50mA
60
50
40
30
20
10
0
100Hz
1kHz
10kHz
100kHz
2
4
6
8
10
Input Bias Voltage VIN (V)
9) Ripple Rejection vs.Temperature (C1=none, C2=Ceramic 0.1μF, Ripple=0.2Vp-p, Topt=25°C)
RP173x12xx RP173x18xx
VIN=2.5V
VIN=2.8V
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
Iout=1mA
Iout=1mA
Iout=30mA
Iout=50mA
Iout=30mA
Iout=50mA
0.1
1
10
100
1000
0.1
1
10
100
1000
Frequency f (kHz)
Frequency f (kHz)
15
RP173x
RP173x30xx
RP173x55xx
VIN=4.0V
VIN=6.5V
70
70
60
50
40
30
20
10
0
60
50
40
30
20
10
0
Iout=1mA
Iout=1mA
Iout=30mA
Iout=50mA
Iout=30mA
Iout=50mA
0.1
1
10
100
1000
0.1
1
10
100
1000
Frequency f (kHz)
Frequency f (kHz)
10) Input Transient Response (C1=none, C2=Ceramic 0.1μF, tr=tf=5.0μs, Topt=25°C)
RP173x12xx
RP173x18xx
IOUT=1mA
IOUT=1mA
4.0
3.5
3.0
2.5
4.0
3.5
3.0
2.5
Input Voltage
Input Voltage
2.2
2.0
1.8
1.6
1.4
1.2
1.6
1.4
1.2
1.0
0.8
0.6
Output Voltage
Output Voltage
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
RP173x30xx
RP173x55xx
IOUT=1mA
IOUT=1mA
5.5
5.0
4.5
4.0
8.0
7.5
7.0
6.5
Input Voltage
Input Voltage
3.4
3.2
3.0
2.8
2.6
2.4
5.9
5.7
5.5
5.3
5.1
4.9
Output Voltage
Output Voltage
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
16
RP173x
RP173x12xx
RP173x18xx
IOUT=30mA
IOUT=30mA
4.0
3.5
3.0
2.5
4.0
3.5
3.0
2.5
Input Voltage
Input Voltage
2.2
2.0
1.8
1.6
1.4
1.2
1.6
1.4
1.2
1.0
0.8
0.6
Output Voltage
Output Voltage
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
RP173x30xx
RP173x55xx
IOUT=30mA
IOUT=30mA
8.0
7.5
7.0
6.5
5.5
5.0
4.5
4.0
Input Voltage
Input Voltage
5.9
5.7
5.5
5.3
5.1
4.9
3.4
3.2
3.0
2.8
2.6
2.4
Output Voltage
Output Voltage
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
11) Load Transient Response (C1=Ceramic 0.1μF,C2=Ceramic 0.1μF, tr=tf=0.5μs,Topt=25°C)
RP173x12xx
RP173x18xx
VIN=2.5V
VIN=2.8V
20
10
0
20
10
0
Output Current
Output Current
1mA 10mA
1mA 10mA
⇔
⇔
1.6
1.4
1.2
1.0
0.8
0.6
2.2
2.0
1.8
1.6
1.4
1.2
Output Voltage
Output Voltage
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
17
RP173x
RP173x30xx
RP173x55xx
VIN=4.0V
VIN=6.5V
20
10
0
20
10
0
Output Current
Output Current
1mA 10mA
⇔
1mA 10mA
⇔
3.4
3.2
3.0
2.8
2.6
5.9
5.7
5.5
5.3
5.1
4.9
Output Voltage
Output Voltage
2.4
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
RP173x12xx
RP173x18xx
VIN=4.0V
VIN=4.0V
150
100
50
150
100
50
Output Current
50mA 100mA
Output Current
50mA 100mA
⇔
⇔
1.8
1.5
1.2
0.9
0.6
0
2.4
0
2.1
1.8
1.5
1.2
0.9
Output Voltage
Output Voltage
0.3
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
RP173x30xx
RP173x55xx
VIN=6.5V
VIN=4.0V
150
100
50
150
100
50
Output Current
Output Current
50mA 100mA
50mA 100mA
⇔
⇔
0
3.6
3.3
3.0
2.7
2.4
0
5.8
5.5
5.2
4.9
4.6
Output Voltage
Output Voltage
2.1
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Time t (ms)
18
RP173x
12) Turn on Speed (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
RP173x12xx
RP173x18xx
VIN=2.8V (IOUT=0,1,30mA)
VIN=4.0V (IOUT=100mA)
VIN=2.5V (IOUT=0,1,30mA)
VIN=4.0V (IOUT=100mA)
6
4
2
0
6
4
2
0
CE Input Voltage 0V 4.0V
CE Input Voltage 0V 4.0V
⇒
⇒
CE Input Voltage
CE Input Voltage
0V 2.8V
⇒
0V 2.5V
⇒
Iout=0mA
1.5
1.0
0.5
Iout=0mA
Iout=1mA
Iout=1mA
2.0
1.0
Iout=30mA
Iout=100mA
Iout=30mA
Iout=100mA
Output Voltage
Output Voltage
0
0
0
50 100 150 200 250 300 350 400
Time t (µs)
0
50 100 150 200 250 300 350 400
Time t (µs)
RP173x30xx
RP173x55xx
VIN=6.5V
VIN=4.0V
8
6
4
2
0
CE Input Voltage
0V 6.5V
5
3
0
⇒
CE Input Voltage
0V
4.0V
⇒
Iout=0mA
Iout=0mA
3.0
2.0
1.0
6.0
4.0
2.0
Iout=1mA
Iout=1mA
Iout=30mA
Iout=100mA
Iout=30mA
Iout=100mA
Output Voltage
Output Voltage
0
0
0
50 100 150 200 250 300 350 400
Time t (µs)
0
50 100 150 200 250 300 350 400
Time t (µs)
13) Turn off Speed with CE pin (C1=Ceramic 0.1μF, C2=Ceramic 0.1μF, Topt=25°C)
RP173x12xx RP173x18xx
VIN=2.5V(IOUT=0,1,30mA)
VIN=4.0V(IOUT=100mA)
VIN=2.8V(IOUT=0,1,30mA)
VIN=4.0V(IOUT=100mA)
6
4
2
0
6
4
2
0
CE Input Voltage
CE Input Voltage
4.0V 0V
4.0V 0V
⇒
⇒
CE Input Voltage
2.5V 0V
Iout=0mA
Iout=1mA
Iout=30mA
Iout=100mA
Iout=0mA
Iout=1mA
Iout=30mA
Iout=100mA
CE Input Voltage
2.8V 0V
⇒
1.5
1.0
0.5
⇒
Output Voltage
2.0
1.0
Output Voltage
0
0
0
50 100 150 200 250 300 350 400
Times t (µs)
0
50 100 150 200 250 300 350 400
Times t (µs)
19
RP173x
RP173x30xx
RP173x55xx
VIN=6.5V
VIN=4.0V
7.5
5.0
2.5
0.0
6
4
2
0
CE Input Voltage
CE Input Voltage
6.5V 0V
⇒
4.0V 0V
⇒
Iout=0mA
Iout=1mA
Iout=30mA
Iout=100mA
4.5
3.0
1.5
Iout=0mA
Iout=1mA
Iout=30mA
Iout=100mA
6.0
4.0
2.0
Output Voltage
Output Voltage
0
0
0
50 100 150 200 250 300 350 400
Times t (µs)
0
50 100 150 200 250 300 350 400
Times t (µs)
ESR vs.Output Current
When using these ICs, consider the following points:The relations between IOUT (Output Current) and ESR of
an output capacitor are shown below.The conditions when the white noise level is under 40μV (Avg.) are marked
as the hatched area in the graph.
Measurement Conditions
Frequency Band : 10Hz to 2MHz
Temperature
C1,C2
: −40゚C to 85゚C
:0.1μF
RP173x0121x
RP173x301x
VIN=3.0V 9.5V
VIN=2.5V 7.7V
~
~
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
25
50
75
100
125
150
0
25
50
75
100
125
150
Output Current (mA)
Output Current (mA)
20
RP173x
RP173x551x
VIN=5.5V 11V
~
100
10
1
0.1
0.01
0
25
50
75
100
125
150
Output Current (mA)
21
1.The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest information
thereon.
2.The materials in this document may not be copied or otherwise reproduced in whole or in part without
prior written consent of Ricoh.
3.Please be sure to take any necessary formalities under relevant laws or regulations before exporting or
otherwise taking out of your country the products or the technical information described herein.
4.The technical information described in this document shows typical characteristics of and example
application circuits for the products. The release of such information is not to be construed as a
warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any
other rights.
5.The products listed in this document are intended and designed for use as general electronic
components in standard applications (office equipment, telecommunication equipment, measuring
instruments, consumer electronic products, amusement equipment etc.). Those customers intending to
use a product in an application requiring extreme quality and reliability, for example, in a highly specific
application where the failure or misoperation of the product could result in human injury or death
(aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and
transportation equipment, combustion equipment, safety devices, life support system etc.) should first
contact us.
6.We are making our continuous effort to improve the quality and reliability of our products, but
semiconductor products are likely to fail with certain probability. In order to prevent any injury to
persons or damages to property resulting from such failure, customers should be careful enough to
incorporate safety measures in their design, such as redundancy feature, fire containment feature and
fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from
misuse or inappropriate use of the products.
7.Anti-radiation design is not implemented in the products described in this document.
8.Please contact Ricoh sales representatives should you have any questions or comments concerning
the products or the technical information.
Ricoh is committed to reducing the environmental loading materials in electrical devices
with a view to contributing to the protection of human health and the environment.
Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since
Halogen Free
April 1, 2012.
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