R1170H351A-T1-HE [RICOH]
Fixed Positive LDO Regulator;
| 型号： | R1170H351A-T1-HE |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Fixed Positive LDO Regulator 输出元件 调节器 |
| 文件： | 总27页 (文件大小：707K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R1170H Series
800mA LDO Regulator for Automotive Applications
NO.EC-084-131206
OUTLINE
The R1170x Series are positive voltage regulator ICs by CMOS process. The R1170x Series have features of
high ripple rejection, low dropout voltage, high output voltage accuracy, and 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 R1170x Series are suitable for various power sources for portable appliances.
This device is packaged in SOT-89-5 that achieves high-density mounting on boards.
FEATURES
• Input Voltage Range (Maximum Rating)...................... Max. 6V (7.0V)
• Supply Current............................................................. Typ. 80μA
• Standby Current........................................................... Typ. 0.1μA
• Output Current ............................................................. Min. 800mA (VIN=VOUT+1.0V)
• Dropout Voltage ........................................................... Typ. 0.12V (VOUT=3.0V, IOUT=300mA)
• Output Voltage Accuracy.............................................. ±2.0%
• Temperature-Drift Coefficient of Output Voltage.......... Typ.±100ppm/°C
• Line Regulation............................................................ Typ. 0.05%/V
• Output Voltage ............................................................. 1.5V to 5.0V (0.1V steps)
• Ripple Rejection........................................................... TYP. 50 dB
• Package ....................................................................... SOT-89-5
• Built-in Current Limit Circuit
• Built-in Thermal Shutdown Circuit
• Ceramic capacitors are recommended to be used with this IC
APPLICATIONS
• Power source for accessories such as car audios, car navigation systems, and ETC systems
• Power source for ECUs such as EV inverter and battery charge control unit
1
R1170H
NO.EC-084-131206
BLOCK DIAGRAMS
R1170xxx1A
R1170Dxxx1B
V
DD
V
DD
VOUT
VOUT
Vref
Vref
Current Limit
Current Limit
Thermal Shutdown
Thermal Shutdown
CE
CE
GND
GND
SELECTION GUIDE
The output voltage and the chip-enable polarity for the ICs can be selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
SOT-89-5
1,000 pcs
Yes
Yes
R1170Hxx1∗-T1-#E
xx: The output voltage can be designated in the range from 1.5V (15) to 5.0V (50) in 0.1V steps.
∗ : CE pin polarity options are as follows.
(A) "L" active
(B) "H" active
# : Specify Automotive Class Code
Operating
Temperature Range
-40°C to 85°C
Guaranteed Specs
Temperature Range
25°C
Screening
A
H
High Temperature
High and Low Temperature
-40°C to 85°C
25°C
2
R1170H
NO.EC-084-131206
PIN DESCRIPTION
• SOT-89-5
5
4
1
2
3
• SOT-89-5
Pin No
Symbol
CE
Description
1
2
3
4
5
Chip Enable Pin
Ground Pin
or CE
GND
NC
VDD
No Connection
Input Pin
VOUT
Voltage Regulator Output Pin
3
R1170H
NO.EC-084-131206
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
7.0
Unit
V
VIN
Input Voltage
VCE
V
−0.3 to VIN+0.3
−0.3 to VIN+0.3
900
CE
Input Voltage (
Output Voltage
or CE Input Pin)
VOUT
V
Standard Land Pattern
PD
mW
Power Dissipation (SOT-89-5)∗
High Wattage Land Pattern
1300
Tj
Junction Temperature
Storage Temperature
−40 to 125
−55 to 125
°C
°C
Tstg
∗) Refer to PACKAGE INFORMATION for detailed 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 RATINGS
Symbol
Item
Rating
2.1 to 6.0
-40 to 85
Unit
V
VIN
Input Voltage
Operating Temperature Range
Ta
°C
RECOMMENDED OPERATING RATINGS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating ratings. The semiconductor devices cannot operate normally over the recommended
operating ratings, even if when they are used over such ratings by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended
operating ratings.
4
R1170H
NO.EC-084-131206
ELECTRICAL CHARACTERISTICS
R1170xxxxA
(Ta=25°C)
Symbol
Item
Supply Current
Conditions
Min.
Typ.
80
Max.
Unit
μA
μA
V
VIN−VOUT=1.0V,
ISS
160
VCE=GND
Istandby Standby Current
0.1
1.0
VIN=VCE=6.0V
VIN−VOUT=1.0V
IOUT=100mA
VOUT
Output voltage
Load regulation
Dropout Voltage
Line regulation
×0.98
×1.02
ΔVOUT/
ΔIOUT
VIN−VOUT=1.0V
30
100
mV
1mA IOUT 300mA
=
=
Refer to the Product-specific
Electrical Characteristics
VDIF
IOUT=300mA
ΔVOUT/
ΔVIN
IOUT=100mA
0.05
0.30
%/V
VOUT+0.5V VIN 6.0V
=
=
ILIM
ISC
Output Current
800
mA
mA
MΩ
V
VIN−VOUT=1.0V
Short Current Limit
Pull-up resistance for
40
VOUT=0V
RPU
VCEH
VCEL
1.25
1.50
0
2.50
5.00
VIN
CE
pin
CE
CE
Input Voltage "H"
Input Voltage "L"
0.25
V
Thermal Shutdown
Detector Threshold Temperature
TTSD
TTSR
Junction Temperature
Junction Temperature
150
120
°C
°C
Thermal Shutdown
Released Temperature
5
R1170H
NO.EC-084-131206
R1170xxxxB
(Ta=25°C)
Symbol
Item
Conditions
VIN−VOUT=1.0V,VCE=VIN
VIN=6.0V,VCE=GND
Min.
Typ.
80
Max.
Unit
μA
ISS
Supply Current
160
1.0
Istandby Standby Current
0.1
μA
Reference Voltage for
Adjustable Voltage Regulator
VIN−VOUT=1.0V
IOUT=100mA
VOUT
V
×0.98
×1.02
ΔVOUT/
ΔIOUT
VIN−VOUT=1.0V
Load regulation
30
100
mV
1mA IOUT 300mA
=
=
Refer to the Product-specific
Electrical Characteristics
VDIF
Dropout Voltage
Line regulation
IOUT=300mA
IOUT=100mA
ΔVOUT/
ΔVIN
0.05
0.30
%/V
VOUT+0.5V VIN 6.0V
=
=
ILIM
ISC
Output Current
800
mA
mA
MΩ
V
VIN−VOUT=1.0V
Short Current Limit
40
VOUT=0V
RPD
VCEH
VCEL
Pull-down resistance for CE pin
CE Input Voltage "H"
CE Input Voltage "L"
1.25
1.5
0
2.50
5.00
VIN
0.25
V
Thermal Shutdown
Detector Threshold Temperature
TTSD
TTSR
Junction Temperature
Junction Temperature
150
120
°C
°C
Thermal Shutdown
Released Temperature
6
R1170H
NO.EC-084-131206
Product-specific Electrical Characteristics
(Ta=25°C)
V
OUT [V]
VDIF [V]
Product Name
MIN.
TYP.
MAX.
1.530
1.632
1.734
1.836
1.938
2.040
2.142
2.244
2.346
2.448
2.550
2.652
2.754
2.856
2.958
3.060
3.162
3.264
3.366
3.468
3.570
3.672
3.774
3.876
3.978
4.080
4.182
4.284
4.386
4.488
4.590
4.692
4.794
4.896
4.998
5.100
TYP.
0.35
0.30
0.25
MAX.
0.45
0.35
0.30
R1170H151x
R1170H161x
R1170H171x
R1170H181x
R1170H191x
R1170H201x
R1170H211x
R1170H221x
R1170H231x
R1170H241x
R1170H251x
R1170H261x
R1170H271x
R1170H281x
R1170H291x
R1170H301x
R1170H311x
R1170H321x
R1170H331x
R1170H341x
R1170H351x
R1170H361x
R1170H371x
R1170H381x
R1170H391x
R1170H401x
R1170H411x
R1170H421x
R1170H431x
R1170H441x
R1170H451x
R1170H461x
R1170H471x
R1170H481x
R1170H491x
R1170H501x
1.470
1.568
1.666
1.764
1.862
1.960
2.058
2.156
2.254
2.352
2.450
2.548
2.646
2.744
2.842
2.940
3.038
3.136
3.234
3.332
3.430
3.528
3.626
3.724
3.822
3.920
4.018
4.116
4.214
4.312
4.410
4.508
4.606
4.704
4.802
4.900
1.500
1.600
1.700
1.800
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
0.20
0.25
0.15
0.20
0.12
0.18
7
R1170H
NO.EC-084-131206
TYPICAL APPLICATION
CE
R1170xxx1B
VDD
VOUT
IN
OUT
COUT
CIN
GND
CIN = 10 uF (Ceramic), COUT = 10 uF (Ceramic)
TECHNICAL NOTES
Phase Compensation
In these ICs, phase compensation is made with the output capacitor for securing stable operation even if the
load current is varied. For this purpose, use as much as 10µF Capacitor as COUT.
If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable.
Evaluate your circuit with considering frequency characteristics. Further, refer to the Typical Characteristics No.
12.
Response Time
The response time by the chip enable function depends on the value of capacitor. When the capacitor value
(COUT) is 40µF or more, the response time might change by the length of OFF time.
Mounting on PCB
Make VDD and GND lines sufficient. If their impedance is high, a current flows, the noise picked up or unstable
operation may result. Further use as much as 10µF capacitor between VDD pin and GND pin as close as
possible.
Set an Output capacitor between VOUT pin and GND pin for phase compensation as close as possible.
(Refer to the example of typical application)
8
R1170H
NO.EC-084-131206
TYPICAL APPLICATION FOR IC CHIP BREAKDOWN PREVENTION
CE
R1170xxx1B
IN
VDD
VOUT
OUT
D1
CIN
COUT
GND
CIN = 10 uF (Ceramic), COUT = 10 uF (Ceramic)
When a sudden surge of electrical current travels along the VOUT pin and GND due to a short-circuit, electrical
resonance of a circuit involving an output capacitor (COUT) and a short circuit inductor generates a negative
voltage and may damage the device or the load devices. Connecting a schottky diode (D1) between the VOUT pin
and GND has the effect of preventing damage to them.
9
R1170H
NO.EC-084-131206
PACKAGE INFORMATION
POWER DISSIPATION (SOT89-5)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below:
Measurement Conditions
High Wattage Land Pattern
Standard Land Pattern
Environment
Board Material
Mounting on Board (Wind velocity=0m/s) Mounting on Board (Wind velocity=0m/s)
Glass cloth epoxy plastic (Double sided) Glass cloth epoxy plastic (Double sided)
Board Dimensions
30mm × 30mm × 1.6mm
50mm × 50mm × 1.6mm
Top side : Approx. 20% ,
Back side : Approx. 100%
Top side : Approx. 10% ,
Back side : Approx. 100%
Copper Ratio
Through-hole
-
φ0.85mm × 10pcs
Measurement Result
(Ta=25°C, Tjmax=125°C)
High Wattage Land Pattern
1300mW
Standard Land Pattern
Free Air
500mW
200°C/W
Power Dissipation
900mW
Thermal Resistance
77°C/W
111°C/W
1500
On Board
(High Wattage Land Pattern)
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
30
50
7.5
15
On Board
(Standard Land Pattern)
Free Air
High Wattage
Standard
Measurement Board Pattern
IC Mount Area (Unit : mm)
0
25
50
75
100
125
150
85
Ambient Temperature (°C)
Power Dissipation
10
R1170H
NO.EC-084-131206
PACKAGE DIMENSIONS (SOT89-5)
4.5±0.1
1.6±0.2
1.5±0.1
0.4±0.1
0.42±0.1
4
5
5
4
φ1.0
0.1 S
1
2
3
3
2
1
0.4±0.1
S
Bottom View
0.42±0.1
0.47±0.1
0.42±0.1
1.5±0.1 1.5±0.1
Unit : mm
Package Dimensions (SOT89-5)
MARK SPECIFICATION (SOT89-5)
cdef: Product Code … Refer to MARK SPECIFICATION TABLE
gh: Lot Number … Alphanumeric Serial Number
cde
fgh
Mark Specification (SOT89-5)
11
R1170H
NO.EC-084-131206
MARK SPECIFICATION TABLE (SOT89-5)
R1170HxxxA
R1170HxxxB
Product Name
Product Name ① ② ③ ④
VSET
① ② ③ ④
VSET
R1170H151A
R1170H161A
R1170H171A
R1170H181A
R1170H191A
E 1 5 A
E 1 6 A
E 1 7 A
E 1 8 A
E 1 9 A
1.5V
1.6V
1.7V
1.8V
1.9V
R1170H151B
R1170H161B
R1170H171B
R1170H181B
R1170H191B
E
E
E
E
E
1
1
1
1
1
5
6
7
8
9
B
B
B
B
B
1.5V
1.6V
1.7V
1.8V
1.9V
R1170H201A
R1170H211A
R1170H221A
R1170H231A
R1170H241A
R1170H251A
R1170H261A
R1170H271A
R1170H281A
R1170H291A
E 2 0 A
E 2 1 A
E 2 2 A
E 2 3 A
E 2 4 A
E 2 5 A
E 2 6 A
E 2 7 A
E 2 8 A
E 2 9 A
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
R1170H201B
R1170H211B
R1170H221B
R1170H231B
R1170H241B
R1170H251B
R1170H261B
R1170H271B
R1170H281B
R1170H291B
E
E
E
E
E
E
E
E
E
E
2
2
2
2
2
2
2
2
2
2
0
1
2
3
4
5
6
7
8
9
B
B
B
B
B
B
B
B
B
B
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
R1170H301A
R1170H311A
R1170H321A
R1170H331A
R1170H341A
R1170H351A
R1170H361A
R1170H371A
R1170H381A
R1170H391A
E 3 0 A
E 3 1 A
E 3 2 A
E 3 3 A
E 3 4 A
E 3 5 A
E 3 6 A
E 3 7 A
E 3 8 A
E 3 9 A
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
R1170H301B
R1170H311B
R1170H321B
R1170H331B
R1170H341B
R1170H351B
R1170H361B
R1170H371B
R1170H381B
R1170H391B
E
E
E
E
E
E
E
E
E
E
3
3
3
3
3
3
3
3
3
3
0
1
2
3
4
5
6
7
8
9
B
B
B
B
B
B
B
B
B
B
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
R1170H401A
R1170H411A
R1170H421A
R1170H431A
R1170H441A
R1170H451A
R1170H461A
R1170H471A
R1170H481A
R1170H491A
E 4 0 A
E 4 1 A
E 4 2 A
E 4 3 A
E 4 4 A
E 4 5 A
E 4 6 A
E 4 7 A
E 4 8 A
E 4 9 A
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
R1170H401B
R1170H411B
R1170H421B
R1170H431B
R1170H441B
R1170H451B
R1170H461B
R1170H471B
R1170H481B
R1170H491B
E
E
E
E
E
E
E
E
E
E
4
4
4
4
4
4
4
4
4
4
0
1
2
3
4
5
6
7
8
9
B
B
B
B
B
B
B
B
B
B
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
R1170H501A
E 5 0 A
5.0V
R1170H501B
E
5
0
B
5.0V
12
R1170H
NO.EC-084-131206
TEST CIRCUITS
CE
CE
V
OUT
VOUT
VDD
VDD
IN
OUT
IN
I
OUT
SS
I
OUT
R1170xxx1B
SERIES
R1170xxx1B
SERIES
10
μF
10μF
10
μF
10μF
GND
GND
Standard Test Circuit
Supply Current Test Circuit
CE
CE
V
OUT
V
OUT
VDD
VDD
IN
OUT
IN
OUT
I
OUT
R1170xxx1B
SERIES
R1170xxx1B
SERIES
10μF
10μF
10μF
P.G.
I1 I2
GND
GND
Test Circuit for Ripple Rejection,
Input Transient Response
Test Circuit for Load Transient Response
13
R1170H
NO.EC-084-131206
TYPICAL CHARACTERISTICS
Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.
1) Output Voltage vs. Output Current (Ta=25°C)
R1170x151B
R1170x301B
1.8
1.6
1.4
1.2
1
3.5
3
V
IN=5V
V
IN=2.5V
V
IN=4V
IN=3.5V
2.5
2
V
V
IN=2V
0.8
0.6
0.4
0.2
0
1.5
1
V
IN=3.5V
0.5
0
0
250 500 750 1000 1250 1500
Output Current IOUT(mA)
0
250 500 750 1000 1250 1500
Output Current IOUT(mA)
R1170x501B
6
5
4
3
2
1
0
V
IN=6V
V
IN=5.5V
0
250 500 750 1000 1250 1500
Output Current IOUT(mA)
2) Output Voltage vs. Input Voltage (Ta=25°C)
R1170x151B
R1170x201B
1.7
2.2
2.1
I
OUT=1mA
1.6
IOUT=1mA
IOUT=10mA
IOUT=10mA
2
1.5
1.4
1.3
1.2
1.1
1.9
1.8
1.7
I
OUT=100mA
I
I
OUT=100mA
OUT=300mA
I
OUT=300mA
1.6
1.5
1.4
1
2
3
4
5
6
1
2
3
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
14
R1170H
NO.EC-084-131206
R1170x301B
R1170x401B
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
I
OUT=10mA
I
OUT=1mA
I
OUT=1mA
I
OUT=10mA
I
OUT=100mA
I
OUT=100mA
I
OUT=300mA
I
OUT=300mA
2
3
4
5
6
3.5
4
4.5
5
5.5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
R1170x501B
5.2
5.0
4.8
4.6
4.4
4.2
4.0
3.8
I
OUT=1mA
I
OUT=10mA
I
OUT=100mA
IOUT=300mA
4.0
4.5
5.0
5.5
6.0
Input Voltage VIN(V)
3) Dropout Voltage vs. Output Current
R1170x151B
R1170x201B
0.8
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.7
25°C
0.6
25°C
0.5
0.4
0.3
0.2
0.1
0
85°C
85°C
-40°C
-40°C
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
15
R1170H
NO.EC-084-131206
R1170x301B
R1170x401B
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
25°C
25°C
85°C
85°C
-40°C
-40°C
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
R1170x501B
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
25°C
85°C
-40°C
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
4) Output Voltage vs. Temperature
R1170x151B
R1170x201B
V
IN=3V, IOUT=10mA
V
IN=2.5V, IOUT=10mA
2.10
2.08
2.05
2.03
2.00
1.98
1.95
1.93
1.90
1.60
1.58
1.55
1.53
1.50
1.48
1.45
1.43
1.40
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(°C)
Temperature Topt(°C)
16
R1170H
NO.EC-084-131206
R1170x301B
R1170x401B
V
IN=4V, IOUT=10mA
V
IN=5V, IOUT=10mA
3.20
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.80
4.20
4.15
4.10
4.05
4.00
3.95
3.90
3.85
3.80
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature Topt(°C)
Temperature Topt(°C)
R1170x501B
V
IN=6V, IOUT=10mA
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
-50
-25
0
25
50
75
100
Temperature Topt(°C)
5) Supply Current vs. Input Voltage (Ta=25°C)
R1170x151B
R1170x201B
120
120
100
80
60
40
20
0
100
80
60
40
20
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
17
R1170H
NO.EC-084-131206
R1170x301B
R1170x401B
120
100
80
60
40
20
0
120
100
80
60
40
20
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)
Input Voltage VIN(V)
R1170x501B
120
100
80
60
40
20
0
0
1
2
3
4
5
6
Input Voltage VIN(V)
6) Supply Current vs. Temperature
R1170x151B
R1170x201B
VIN=3V
VIN=2.5V
160
140
120
100
80
160
140
120
100
80
60
60
40
40
20
-50
20
-50
25
Temperature Topt(
25
Temperature Topt(°C)
-25
0
50
75
100
-25
0
50
75
100
°C)
18
R1170H
NO.EC-084-131206
R1170x301B
R1170x401B
V
IN=4V
VIN=5V
160
140
120
100
80
160
140
120
100
80
60
60
40
40
20
-50
20
-50
25
25
Temperature Topt(°C)
-25
0
50
75
100
-25
0
50
75
100
Temperature Topt(
°C)
R1170x501B
V
IN=6V
160
140
120
100
80
60
40
20
-50
25
Temperature Topt(°C)
-25
0
50
75
100
7) Dropout Voltage vs. Set Output Voltage (Ta=25°C)
R1170x
0.7
I
OUT=400mA
0.6
0.5
0.4
0.3
0.2
0.1
0.0
IOUT=600mA
I
OUT=800mA
I
OUT=100mA
1
2
3
4
5
Set Output Voltage VSET(V)
19
R1170H
NO.EC-084-131206
8) Ripple Rejection vs. Frequency
R1170x151B
R1170x201B
V
IN=2.5V+0.5Vp-p, IOUT=100mA
VIN=3V+0.5Vp-p, IOUT=100mA
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
R1170x301B
R1170x401B
V
IN=4V+0.5Vp-p, IOUT=100mA
V
IN=5V+0.5Vp-p, IOUT=100mA
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
R1170x501B
V
IN=5.75+0.5Vp-p, IOUT=100mA
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
Ripple Frequency f (kHz)
20
R1170H
NO.EC-084-131206
9) Ripple Rejection vs. Input Voltage
R1170x301B
R1170x301B
I
OUT=1mA, COUT=10
μF
IOUT=10mA, COUT=10
μ
F
60
50
60
50
f=400Hz
f=400Hz
f=1kHz
f=1kHz
40
30
40
30
f=10kHz
f=10kHz
20
20
10
0
10
0
3
3.2
3.4
3.6
F
3
3.2
3.4
3.6
Input Voltage VIN(V)
Input Voltage VIN(V)
R1170x301B
I
OUT=100mA, COUT=10μ
60
50
f=400Hz
f=1kHz
40
30
f=10kHz
20
10
0
3
3.2
3.4
3.6
Input Voltage VIN(V)
10) Input Transient Response (Ta=25°C)
R1170x151B
tr=tf=10
μ
s, IOUT=100mA, COUT=Ceramic 10
μF
1.8
1.75
1.7
4
3.5
3
Input Voltage
1.65
1.6
2.5
2
1.55
1.5
1.5
1
Output Voltage
1.45
1.4
0.5
0
0
20
40
60
80
100
Time T(μs)
120
140
160
180
200
21
R1170H
NO.EC-084-131206
R1170x301B
tr=tf=10
μ
s, IOUT=100mA, COUT=Ceramic 10
μF
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
5
4
3
2
1
0
Input Voltage
Output Voltage
0
0
0
20
20
20
40
40
40
60
60
60
80
100
120
140
160
180
200
Time T(μs)
R1170x301B
tr=tf=10
μ
s, IOUT=100mA, COUT=Ceramic 4.7
μF
3.4
3.3
3.2
3.1
3.0
2.9
2.8
6
5
4
3
2
1
0
Input Voltage
Output Voltage
80
100
Time T(μs)
120
140
160
180
200
R1170x501B
tr=tf=10
μ
s, IOUT=100mA, COUT=Ceramic 10
μF
5.20
5.15
5.10
5.05
5.00
4.95
4.90
6.5
6.0
5.5
5.0
4.5
4.0
3.5
Input Voltage
Output Voltage
80
100
Time T(μs)
120
140
160
180
200
22
R1170H
NO.EC-084-131206
R1170x501B
tr=tf=10
μ
s, IOUT=100mA, COUT=Ceramic 4.7
μF
5.20
5.15
5.10
5.05
5.00
4.95
4.90
6.5
6.0
5.5
5.0
4.5
4.0
3.5
Input Voltage
Output Voltage
0
20
40
60
80
100
Time T(μs)
120
140
160
180
200
11) Load Transient Response (Ta=25°C)
R1170x151B
tr=tf=3
μ
s, CIN=Ceramic 10
μ
F, VIN=2.5V, COUT=Ceramic 10
μ
F
2.0
1.9
1.8
1.7
1.6
1.5
1.4
120
100
80
60
40
20
0
Output Current
Output Voltage
0
20
40
60
80
100
120
140
160
180
200
Time T(μs)
R1170x301B
tr=tf=3
μ
s, CIN=Ceramic 10
μ
F, VIN=4V, COUT=Ceramic 10
μ
F
3.5
3.4
3.3
3.2
3.1
3.0
2.9
120
100
80
60
40
20
0
Output Current
Output Voltage
0
20
40
60
80
100
120
140
160
180
200
Time T(μs)
23
R1170H
NO.EC-084-131206
R1170x301B
tr=tf=3
μ
s, CIN=Ceramic 10
μ
F, VIN=4V, COUT=Ceramic 4.7μF
3.5
3.4
3.3
3.2
3.1
3.0
2.9
120
100
80
60
40
20
0
Output Current
Output Voltage
0
0
0
20
20
20
40
40
40
60
80
100
120
140
160
180
200
Time T(μs)
R1170x501B
tr=tf=3
μ
s, CIN=Ceramic 10
μ
F, COUT=Ceramic 10
Output Current
μ
F
5.20
5.15
5.10
5.05
5.00
4.95
4.90
150
100
50
0
Output Voltage
60
80
100
Time T(μs)
120
140
160
180
200
R1170x501B
tr=tf=3
μ
s, CIN=Ceramic 10
μ
F, COUT=Ceramic 4.7
Output Current
μ
F
5.20
5.15
5.10
5.05
5.00
4.95
4.90
150
100
50
0
Output Voltage
60
80
100
Time T(μs)
120
140
160
180
200
24
R1170H
NO.EC-084-131206
12) Stable Area (Ta=25°C, VIN = Set Output Voltage+1V, CIN = Ceramic 10μF)
CE
VOUT
Ceramic
Capacitor
R1170xxxxB
Spectrum
Analyzer
S.A.
V
IN
GND
ESR
Ceramic
Capacitor
V
IN
I
OUT
As an output capacitor for this IC, Ceramic capacitor is recommendable. However, other low ESR type
capacitor can be used with this IC.
For your reference, noise level is tested with the circuit as shown above, and if the noise level is 40μV or less
than 40μV, the ESR values are plotted as stable area. Upper limit is described in the next four graphs, or ESR vs.
Output Current. (Hatched area is the stable area.)
R1170x151B
R1170x151B
C
OUT=Ceramic 10
μF
C
OUT=Ceramic 4.7μF
100
10
1
100
10
1
0.1
0.1
0
200
400
600
800
0
200
400
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
R1170x301B
R1170x301B
C
OUT=Ceramic 10
μF
C
OUT=Ceramic 4.7
μF
100
10
1
100
10
1
0.1
0.1
0
200
400
600
800
0
200
400
600
800
Output Current IOUT(mA)
Output Current IOUT(mA)
25
R1170H
NO.EC-084-131206
R1170x501B
R1170x501B
C
OUT=Ceramic 10
μF
COUT=Ceramic 4.7μF
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
Note:
When the large value of output capacitor (COUT) is used, the output rising time might be faster than the usual
time depending on the status of the internal charge.
26
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 in this document are designed for automotive applications. However, when using
the products for automotive applications, please make sure to contact Ricoh sales
representative in advance due to confirming the quality level.
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, firecontainment
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.
For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.
Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are
also Antimony Free.)
Halogen Free
RICOH COMPANY, LTD.
Electronic Devices Company
http://www.ricoh.com/LSI/
RICOH COMPANY, LTD.
Electronic Devices Company
● Higashi-Shinagawa Office (International Sales)
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