2001.Jul.21
800mA LDO REGULATOR
R1170X series
■■■■ 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.
■■■■ FEATURES
●Ultra-Low Supply Current
●Low Standby Current
●Output Current
●Output Voltage
• • • • • • • • • • • • • • •
• • • • • • • • • • • •
• • • • • • • •
• • • • • • • • • •
●High Output Voltage Accuracy
●Low Dropout Voltage
●Line Regulation
●Small Package
●
Built-in Current Limit Circuit
●
Built-in Thermal Shunt Circuit
●
Low Temperature-drift Coefficient of Output Voltage
• • • • • • • • • • • •
• • • • • • • • • • • •
• • • • • • • • • • • • • • • •
■■■■ APPLICATIONS
●
Local Power source for Notebook PC.
●
Local Power source for portable appliances, cameras, and videos.
●
Local Power source for equipment of battery-use.
●
Local Power source for home appliances.
TYP. 80µA
•
TYP. 0.1µA
MIN. 800mA(VIN=V
OUT
+1.0V)
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V
• • • •
±2.0%
TYP. 0.12V(V
TYP. 0.05%/V
SOT-89-5, HSON6
OUT
=3.0V, I
• • • • • • • • •
OUT
=300mA)
TYP.±100ppm/°C
Rev. 1.10 - 1 -
■■■■
BLOCK DIAGRAMS
R1170H Series R1170D Series
V
CE
DD
4 5
-
+
Vref
Current Limit
1
V
GND
2
OUT
V
V
CE
6
DD
5 2
-
+
Vref
Current Limit
3
1
V
V
GND
4
OUT
OUT
DD
■■■■ SELECTION GUIDE
The output voltage, the chip-enable polarity, the taping type can be selected at the user’s request. The selection
can be made with the part number as follows;
R1170X XXXX-XX ← Part Number
↑
↑
↑
a b c d
↑
Code
a Package Type; H: SOT89-5, D: HSON-6P
b Designation of Output Voltage(V
c Designation of option;
d Designation of Taping Type;
Contents
Stepwise setting with 0.1V increment in the range from 1.5V to 4.0V
A: Built-in Chip Enable Circuit, Active at “L”
B: Built-in Chip Enable Circuit, Active at “H”
T1 or T2 (SOT89-5), TR(HSON-6) (Refer to Taping Specifications)
■■■■ PIN CONFIGURATION
● SOT-89-5
OUT
)
5
4
Mark Side
1
Rev. 1.10 - 2 -
2
3
●
HSON-6P
6 5 4
1 2 3
■■■■
PIN DESCRIPTION
SOT89-5
Pin No. Symbol Description
1 CE or CE Chip Enable Pin Voltage Regulator Output Pin
2 GND Ground Pin
3 NC No Connection
4V
5V
DD
OUT
Input Pin
Voltage Regulator Output Pin
HSON-6P
Pin No. Symbol Description
1V
2V
OUT
OUT
Voltage Regulator Output Pin
Voltage Regulator Output Pin
3 CE or CE Chip Enable Pin Voltage Regulator Output Pin
4 GND Ground Pin
5V
6V
DD
DD
Input Pin
Input Pin
■■■■
ABSOLUTE MAXIMUM RATINGS
Item Symbol Rating Unit
Input Voltage V
Input Voltage(CE or CE Input Pin)*
Note
V
Output Voltage V
Output Current I
Power Dissipation P
Operating Temperature T
Storage Temperature T
IN
CE
OUT
OUT
D
opt
stg
7.0 V
-0.3 ~ VIN+0.3 V
-0.3 ~ VIN+0.3 V
1.2 A
Internally limited
-40 ~ 85
-55 ~ 125
°
°
C
C
Rev. 1.10 -3-
■■■■
ELECTRICAL CHARACTERISTICS
●
R1170XxxxA
(Topt=25°C)
Item Symbol Conditions MIN. TYP. MAX. Unit
Input Voltage V
Supply Current1
Standby Current Istb VIN=VCE=6.0V 0.1
Output voltage V
Output Current I
Load regulation
Dropout Voltage V
Line regulation
Ripple Rejection RR f=1kHz,Ripple 0.5Vp-p
Output Voltage
Temperature Coefficient
Short Current Limit I
Pull-up resistance for CE pin R
CE Input Voltage “H” V
CE Input Voltage “L” V
Thermal Shutdown Detector
IN
I
SS1
OUT
OUT1
∆
OUT
V
∆
OUT
I
DIFIOUT
∆
OUT
V
∆
IN
V
∆
OUT
V
∆
T
LIM
PU
CEH
CEL
TSD
T
OUT
/
VIN-V
CE
V
VIN-V
OUT
I
VIN-V
VIN-V
1mA≤I
=1.0V
=GND
OUT
=1.0V
x0.98 x1.02 V
=100mA
OUT
=1.0V 800 mA
OUT
OUT
=1.0V
≤
300mA
30 100 mV
=300mA Refer to Dropout Voltage Table
OUT
/
I
=100mA
=1.0V
IN
≤
8.0V
/
OUT
V
IN-VOUT
V
OUT
I
=10mA
+0.5V≤V
-40°C ≤ Topt ≤ 85°C
OUT
V
=0V 40 mA
1.25 2.50 5.00 M
1.50 V
0.00 0.25 V
Junction Temperature 150
6.0 V
80 160 µA
1.0
0.05 0.30 %/V
50 dB
±
100 ppm
IN
Threshold Temperature
Thermal Shutdown Released
T
TSR
Junction Temperature 120
Temperature
A
µ
/°C
Ω
V
°
C
°
C
Rev. 1.10 - 4 -
●
R1170xxxxB
(Topt=25°C)
Item Symbol Conditions MIN. TYP. MAX. Unit
Input voltage V
Supply Current1 I
Standby Current Istb VIN=6.0V, VCE=GND 0.1
Reference Voltage for
Adjustable Voltage Regulator
Output Current I
Load regulation
Dropout Voltage V
Line regulation
IN
SS1VIN-VOUT
OUTVIN-VOUT
V
OUT
I
=100mA
OUT1VIN-VOUT
∆
OUT
V
/
VIN-V
∆
OUT
I
∆
V
∆
1mA≤I
DIFIOUT
OUT
OUT
/
I
IN
V
OUT
V
=300mA Refer to Dropout Voltage Table
=100mA
6.0 V
=1.0V V
CE=VIN
80 160
1.0
=1.0V
=1.0V 800 mA
OUT
=1.0V
≤
OUT
300mA
≤
+0.5V≤V
IN
8.0V
x0.98 x1.02 V
30 100 mV
0.05 0.30 %/V
µ
A
µ
Ripple Rejection RR f=1kHz,Ripple 0.5Vp-p 50 dB
∆
Output Voltage
V
Temperature Coefficient
Short Current Limit I
Pull-down resistance for CE pin R
CE Input Voltage “H” V
CE Input Voltage “L” V
Thermal Shutdown Detector
T
OUT
/
-40°C≤Topt≤85°C
∆
T
LIM
PD
CEH
CEL
TSD
OUT
V
=0V 40 mA
Junction Temperature 150
1.25 2.5 5 M
1.5 V
00.25V
±
100 ppm
IN
/°C
V
°
Threshold Temperature
Thermal Shutdown Released
T
TSR
Junction Temperature 120
°
Temperature
A
Ω
C
C
●
Dropout Voltage by Output Voltage (Topt=25°C)
Output Voltage
OUT
V
(V)
OUT
V
=1.5 0.35 0.45
OUT
V
=1.6 0.30 0.35
OUT
V
=1.7 0.25 0.30
≤
OUT
1.8≤V
2.1≤V
2.5≤V
2.0 0.20 0.25
≤
OUT
2.4 0.15 0.20
≤
OUT
4.0 0.12 0.18
Dropout Voltage (V)
TYP. MAX.
Rev. 1.10 -5-
■
TEST CIRCUITS
IN
10µF
V
DD
4
R1170Hxx1B Series
Standard Test Circuit
1
2
CE
GND
CE
1
V
OUT
5
Iout
10µF
OUT
IN
10µF
V
DD
4
I
SS
R1170Hxx1B Series
2
GND
V
OUT
5
OUT
10µF
Supply Current Test Circuit
CE
1
V
IN
V
DD
4
OUT
OUT
5
Iout
R1170Hxx1B Series R1170Hxx1B Series
10µF
P.G
2
GND
Test Circuit for Ripple Rejection, Input Transient
Response
CE
1
V
DD
IN
45
10µF
2
GND
Test Circuit for Load Transient Response
V
OUT
OUT
10µF
I1 I2
Rev. 1.10 - 6 -
■
.
Technical Notes on External Components and Typical Application
Phase Compensation
In these ICs, phase compensation is made with Output capacitor for securing stable operation even
if the load current is varied. For this purpose, use as much as 10µF Capacitor as C
L.
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.
Mounting on PCB
Make V
and GND lines sufficient. If the impedance of these is high, current flows, the noise might
DD
be picked up or be a cause of unstable operation. Further use as much as 10µF Capacitor between
V
pin and GND pin as close as possible.
DD
Set an Output capcitor between V
pin and GND pin for phase compensation as close as possible
OUT
(Refer to the example of typical application)
Example of the typical application of R1170HxxxB
CE
IN
CI
CI=10µF(Ceramic), CL=10µF(Ceramic)
V
GND
R1170Hxx1B
DD
V
OUT
OUT
CL
Rev. 1.10 -7-
■
TYPICAL CHARACTERISTICS
1)Output Voltage vs. Output Current(Topt=25°C)
R1170X151B
(V)
OUT
2
1.5
VIN=3.5V
1
VIN=3V
0.5
Output Voltage V
VIN=2.5V
0
0 500 1000 1500
Output Current I
OUT
(mA)
R1170X301B
3.5
3
(V)
2.5
OUT
2
1.5
1
Output Voltage V
VIN=4.5V
IN
=4V
V
VIN=5V
0.5
0
0 500 1000 1500
OUT
Output Current I
(mA)
R1170X201B
2.5
2
(V)
OUT
1.5
1
VIN=3V
Output Voltage V
0.5
VIN=4V
VIN=3.5V
0
0 500 1000 1500
Output Current I
OUT
(mA)
R1170X401B
4.5
4
3.5
(V)
3
OUT
2.5
2
1.5
Output Voltage V
1
0.5
VIN=5V
VIN=6V
VIN=5.5V
0
0 500 1000 1500
Output Current I
OUT
(mA)
2)Output Voltage vs. Input Voltage(Topt=25°C)
R1170X151B
1.7
1.6
(V)
1.5
OUT
1.4
1.3
Output Voltage V
1.2
I
OUT
= 1mA
OUT
I
OUT
I
= 10mA
= 100mA
OUT
I
= 300mA
1.1
123456
IN
Input Voltage V
(V)
Rev. 1.10 - 8 -
2.2
R1170X201B
2.1
OUT
I
(V)
OUT
1.9
2
= 10mA
1.8
1.7
1.6
Output Voltage V
I
I
OUT
I
= 300mA
OUT
OUT
= 1mA
= 100mA
1.5
1.4
123456
Input Voltage V
IN
(V)
3.2
R1170X301B
R1170X401B
4.2
3.1
(V)
OUT
OUT
I
= 10mA
3
OUT
I
= 1mA
2.9
OUT
I
2.8
= 100mA
OUT
I
= 300mA
2.7
Output Voltage V
2.6
2.5
23456
Input Voltage V
IN
3)Dropout Voltage vs. Output Current
R1170X151B
0.45
0.4
0.35
(V)
0.3
DIF
0.25
0.2
0.15
Dropout Voltage V
0.1
0.05
85°C
(V)
-40°C
25°C
4.1
(V)
OUT
3.9
OUT
I
= 1mA
4
OUT
I
= 10mA
3.8
OUT
=100mA
I
3.7
OUT
=300mA
3.6
Output Voltage V
I
3.5
3.4
3.5 4 4.5 5 5.5 6
Input Voltage V
IN
(V)
R1170X201B
0.4
0.35
0.3
(V)
DIF
0.25
0.2
85°C
0.15
0.1
Dropout Voltage V
0.05
25°C
-40°C
0
0 100 200 300 400 500
Output Current I
OUT
(mA)
R1170X301B
0.3
0.25
(V)
DIF
0.2
85°C
0.15
0.1
Dropout Voltage V
0.05
0
0 100 200 300 400 500
Output Current I
OUT
(mA)
25°C
-40°C
0
0 100 200 300 400 500
OUT
Output Current I
(mA)
R1170X401B
0.25
0.2
(V)
DIF
85°C
0.15
0.1
Dropout Voltage V
0.05
-40°C
0
0 100 200 300 400 500
OUT
Output Current I
（mA）
25°C
Rev. 1.10 -9-
4)Output Voltage vs. Temperature
R1170X151B
1.60
V
I
IN
OUT
=2.5V
=10mA
1.58
1.55
(V)
OUT
1.53
1.50
1.48
1.45
Output Voltage V
1.43
1.40
-50 -25 0 25 50 75 100
Temperature Topt
R1170X301B
(°C)
OUT
I
IN
V
=4V
=10mA
3.20
3.15
3.10
(V)
OUT
3.05
3.00
2.95
2.90
Output Voltage V
2.85
2.80
-50 -25 0 25 50 75 100
Temperature Topt
(°C) (°C)
R1170X201B
OUT
I
IN
V
=3V
=10mA
2.10
2.08
2.05
(V)
2.03
OUT
2.00
1.98
1.95
Output Voltage V
1.93
1.90
-50 -25 0 25 50 75 100
Temperature Topt
R1170X401B
(°C)
I
V
OUT
IN
=10mA
4.20
4.15
(V)
4.10
OUT
4.05
4.00
3.95
3.90
Output Voltage V
3.85
3.80
-50 -25 0 25 50 75 100
Temperature Topt
=5V
5)Supply Current vs. Input Voltage(Topt=25°C)
R1170X151B
120
100
80
60
40
Supply Current Iss(uA)
20
0
01234567
IN
Input Voltage V
(V)
Rev. 1.10 - 10 -
R1170X201B
120
100
80
60
40
Supply Current Iss(uA)
20
0
01234567
Input Voltage V
IN
(V)
120
R1170X301B
R1170X401B
120
100
uA)
（
80
60
40
Supply Current Iss
20
0
01234567
Input Voltage V
6)Supply Current vs. Temperature
R1170X151B
160
140
120
100
IN
(V)
VIN=2.5V
100
80
60
40
Supply Current Iss(uA)
20
0
01234567
Input Voltage V
IN
(V)
R1170X201B
VIN=3V
160
140
120
100
80
60
Supply Current Iss (uA)
40
20
-50 -25 0 25 50 75 100
Temperature Topt
(°C) (°C)
R1170X301B
VIN=4V
160
140
120
100
80
60
Supply Current Iss (uA)
40
20
-50 -25 0 25 50 75 100
Temperature Topt
(°C)
80
60
Supply Current Iss (uA)
40
20
-50 -25 0 25 50 75 100
Temperature Topt
R1170X401B
VIN=5V
160
140
120
100
80
60
Supply Current Iss (uA)
40
20
-50 -25 0 25 50 75 100
Temperature Topt
(°C)
Rev. 1.10 -11-
7)Dropout Voltage vs. Set Output Voltage(Topt=25°C)
R1170XXXXB
0.35
0.3
(V)
0.25
DIF
0.2
0.15
OUT
I
=300mA
I
OUT
=500mA
0.1
Dropout Voltage V
OUT
I
=100mA
0.05
0
11.522.533.54
SET
Set Output Voltage V
(V)
8)Ripple Rejection vs. Frequency
R1170X151B
80
70
60
50
40
30
20
Ripple Rejection RR (dB)
10
0
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
VIN=2.5V+0.5Vp-p
OUT
I
=100mA
R1170X201B
VIN=3V+0.5Vp-p
OUT
=100mA
I
80
70
60
50
40
30
20
Ripple Rejection RR (dB)
10
0
0.01 0.1 1 10 100
Ripple Frequency f(kHz)
R1170X301B
VIN=4V+0.5Vp-p
OUT
=100mA
I
80
70
60
50
40
30
20
Ripple Rejection RR (dB)
10
0
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
Rev. 1.10 - 12 -
R1170X401B
VIN=5V+0.5Vp-p
OUT
I
=100mA
80
70
60
50
40
30
20
Ripple Rejection RR (dB)
10
0
0.01 0.1 1 10 100
Ripple Frequency f (kHz)
9)Ripple Rejection vs. Input Voltage
R1170X301B
60
50
f = 400Hz
OUT
I
OUT
C
f =1kHz
= 1mA
= 10uF
60
50
R1170X301B
f = 400Hz
OUT
I
= 10mA
OUT
C
f =1kHz
= 10uF
40
30
f = 10kHz
20
Ripple Rejection RR(dB)
10
0
3 3.2 3.4 3.6
IN
Input Voltage V
R1170X301B
(V)
I
C
OUT
OUT
= 100mA
= 10uF
60
f = 400Hz
50
f =1kHz
40
30
f = 10kHz
20
Ripple Rejection RR(dB)
10
40
30
f = 10kHz
20
Ripple Rejection RR(dB)
10
0
33.23.43.6
IN
Input Voltage V
(V)
0
3 3.2 3.4 3.6
Input Voltage V
IN
(V)
10)Input Transient Response (Topt=25°C)
1.8
1.75
(V)
1.7
OUT
1.65
1.6
1.55
1.5
Output Voltage V
1.45
1.4
0 20 40 60 80 100 120 140 160 180 200
R1170X151B
Time t(us
）
tr=tf=10us
OUT
=100mA
I
OUT
C
=Ceramic 10uF
Input Voltage
Output Voltage
4
3.5
3
(V)
IN
2.5
2
1.5
1
Input Voltage V
0.5
0
Rev. 1.10 -13-
3.4
R1170X301B
tr=tf=10us
OUT
I
=100mA
OUT
C
=Ceramic 10uF
6
3.3
Input Voltage
(V)
3.2
OUT
3.1
Output Voltage
3
Output Voltage V
2.9
2.8
0 20 40 60 80 100 120 140 160 180 200
3.4
3.3
(V)
3.2
OUT
3.1
3
Output Voltage V
2.9
Time t(us)
R1170X301B
tr=tf=10us
OUT
I
=100mA
OUT
C
= Ceramic 4.7uF
Input Voltage
Output Voltage
5
(V)
4
IN
3
2
Input Voltage V
1
0
6
5
(V)
4
IN
3
2
Input Voltage V
1
2.8
0 20 40 60 80 100 120 140 160 180 200
11)Load Transient ResponseTopt=25°C)
2
1.9
(V)
OUT
1.8
1.7
1.6
Output Voltage V
1.5
1.4
0 20 40 60 80 100 120 140 160 180 200
Time t(us)
R1170X151B
Time t(us)
tr=tf=3us
IN
=2.5V
V
IN
= Ceramic 10uF
C
OUT
C
=Ceramic 10uF
Output Current
Output Voltage
0
120
100
(mA)
80
OUT
60
40
Output Current I
20
0
Rev. 1.10 - 14 -
3.5
R1170X301B
tr=tf=3us
VIN=4V
CIN = Ceramic 10uF
OUT
C
=Ceramic 10uF
120
3.4
(V)
3.3
OUT
3.2
3.1
Output Voltage V
3
2.9
0 20 40 60 80 100 120 140 160 180 200
Time t(us)
tr=tf=3us
VIN=4V
3.5
3.4
(V)
3.3
OUT
3.2
3.1
Output Voltage V
3
R1170X301B
Output Current
Output Voltage
CIN = Ceramic 10uF
OUT
=Ceramic 4.7uF
C
Output Current
Output Voltage
100
(mA)
80
OUT
60
40
Output Current I
20
0
120
100
80
60
40
20
(mA)
OUT
Output Current I
2.9
0 20 40 60 80 100 120 140 160 180 200
Time t(us)
0
12)Stable Area(Topt=25°C,VIN=Set Output Voltage+1V,CIN=Ceramic 10µF)
Vin
CE
R1170XXXXB
VIN
Ceramic
Capacitor
Vout
GND
Ceramic
Capacitor
ESR
IIout
S.A.
Spectrum
Analyzer
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.)
Rev. 1.10 -15-
100
R1170X151B
OUT
C
=
Ceramic 10uF
100
R1170X151B
OUT
C
=Ceramic 4.7uF
Ohm)
（
ESR
Ohm)
（
ESR
10
1
0.1
0 200 400 600 800
OUT
Output Current I
(mA)
R1170X301B
OUT
C
100
=Ceramic 10uF
10
1
10
Ohm)
（
1
ESR
0.1
0 200 400 600 800
Output Current I
OUT
(mA)
R1170X301B
OUT
C
100
=Ceramic 4.7uF
10
1
ESR(Ohm)
0.1
0
200 400 600
Output Current I
OUT
(mA)
800
0.1
0 200 400 600 800
OUT
Output Current I
(mA)
Rev. 1.10 - 16 -
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