R1170D21A-TR [RICOH]
Fixed Positive LDO Regulator, 2.1V, 0.2V Dropout, CMOS, PDSO6, HSON-6;型号: | R1170D21A-TR |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Fixed Positive LDO Regulator, 2.1V, 0.2V Dropout, CMOS, PDSO6, HSON-6 光电二极管 输出元件 调节器 |
文件: | 总20页 (文件大小:363K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
2002.Apr.1
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, HSON6, or SC-84(Under Development), high
density mounting of the ICs on boards is possible.
■ FEATURES
■Ultra-Low Supply Current• • • • • • • • TYP. 80µA
■Low Standby Current • • • • • • • • • • • TYP. 0.1µA
■Output Current • • • • • • • • • • • • • • • MIN. 800mA(VIN=VOUT+1.0V)
■Output Voltage • • • • • • • • • • • • Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V
■High Output Voltage Accuracy• • • • ±2.0%
■Low Dropout Voltage• • • • • • • • • • • • TYP. 0.12V(VOUT=3.0V, IOUT=300mA)
■Line Regulation• • • • • • • • • • • • TYP. 0.05%/V
■Small Package • • • • • • • • • • • • • • • • SOT-89-5, HSON6, SC-84(Under Development)
■Built-in Current Limit Circuit
■Built-in Thermal Shunt Circuit
■Low Temperature-drift Coefficient of Output Voltage • • • • • • • • • TYP.±100ppm/°C
■ 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.
Rev. 1.11
- 1 -
■ BLOCK DIAGRAMS
R1170H /U(Under Development) Series
R1170D Series
VDD
VDD
6
5
1
2
DD
V
4
5
VOUT
VOUT
OUT
V
-
-
+
+
Vref
Vref
GND
GND
Current Limit
Current Limit
3
4
CE
1
2
CE
■ 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
Contents
a
b
Package Type; H: SOT89-5, D: HSON-6P, U:SC-84(Under Development)
Designation of Output Voltage(VOUT)
Stepwise setting with 0.1V increment in the range from 1.5V to 5.0V (from 4.1V to 5.0V: Under
Development)
c
Designation of option;
A: Built-in Chip Enable Circuit, Active at “L”
B: Built-in Chip Enable Circuit, Active at “H”
d
Designation of Taping Type;
T1 or T2 (SOT89-5), TR(HSON-6/SC-84(Under Development)) (Refer to Taping Specifications)
■ PIN CONFIGURATION
■ SOT-89-5
4
5
Mark
1
Side
3
2
Rev. 1.11
- 2 -
■ HSON-6P
6
5
4
1
2
3
■ SC-84 (Under Development)
4
5
1
3
2
■ PIN DESCRIPTION
SOT89-5/SC-84(Under Development)
Pin No.
Symbol
Description
1
2
3
4
5
CE or CE
GND
NC
VDD
VOUT
Chip Enable Pin Voltage Regulator Output Pin
Ground Pin
No Connection
Input Pin
Voltage Regulator Output Pin
HSON-6P
Pin No.
Symbol
Description
1
VOUT
VOUT
CE or CE
GND
VDD
VDD
Voltage Regulator Output Pin
Voltage Regulator Output Pin
Chip Enable Pin Voltage Regulator Output Pin
Ground Pin
Input Pin
Input Pin
2
3
4
5
6
Rev. 1.11
-3-
■ ABSOLUTE MAXIMUM RATINGS
Item
Input Voltage
Symbol
VIN
VCE
VOUT
IOUT
PD
Rating
7.0
-0.3 ~ VIN+0.3
-0.3 ~ VIN+0.3
1.2
Unit
V
V
V
A
Input Voltage(CE or CE Input Pin)*Note
Output Voltage
Output Current
Power Dissipation
Internally limited
Operating Temperature
Storage Temperature
Topt
Tstg
-40 ~ 85
-55 ~ 125
°C
°C
■ ELECTRICAL CHARACTERISTICS
■R1170XxxxA
(Topt=25°C)
Item
Input Voltage
Symbol
VIN
Conditions
MIN.
TYP.
MAX.
6.0
Unit
V
Supply Current1
ISS1
VIN-VOUT=1.0V
VCE=GND
80
160
µA
Standby Current
Output voltage
Istb
VIN=VCE=6.0V
0.1
1.0
x1.02
µA
V
VOUT
VIN-VOUT=1.0V
IOUT=100mA
VIN-VOUT=1.0V
x0.98
800
Output Current
Load regulation
IOUT1
mA
mV
∆VOUT/ VIN-VOUT=1.0V
30
100
∆IOUT
1mA≤IOUT≤300mA
Dropout Voltage
Line regulation
VDIF
IOUT=300mA
Refer to Dropout Voltage Table
∆VOUT/ IOUT=100mA
∆VIN
0.05
0.30
%/V
VOUT+0.5V≤VIN≤6.0V
Ripple Rejection
RR
f=1kHz,Ripple 0.5Vp-p
1.5V≤VIN≤4.0V:
VIN-VOUT=1.0V
50
dB
4.1V≤VIN≤5.0V:
VIN-VOUT=0.75V
Output Voltage
Temperature Coefficient
Short Current Limit
Pull-up resistance for CE pin
CE Input Voltage “H”
CE Input Voltage “L”
Thermal Shutdown Detector
Threshold Temperature
Thermal Shutdown Released
Temperature
∆VOUT/ IOUT=10mA
±100
ppm
/°C
mA
MΩ
V
∆T
-40°C ≤ Topt ≤ 85°C
ILIM
VOUT=0V
40
2.50
RPU
VCEH
VCEL
TTSD
1.25
1.50
0.00
5.00
VIN
0.25
V
°C
Junction Temperature
Junction Temperature
150
120
TTSR
°C
Rev. 1.11
- 4 -
■R1170xxxxB
(Topt=25°C)
MAX.
6.0
Item
Symbol
VIN
Conditions
MIN.
TYP.
Unit
V
Input voltage
Supply Current1
Standby Current
Reference Voltage for
Adjustable Voltage Regulator
Output Current
ISS1
VIN-VOUT=1.0V VCE=VIN
80
0.1
160
1.0
x1.02
µA
µA
V
Istb VIN=6.0V, VCE=GND
VOUT VIN-VOUT=1.0V
IOUT=100mA
IOUT1 VIN-VOUT=1.0V
∆VOUT/ VIN-VOUT=1.0V
∆IOUT 1mA≤IOUT≤300mA
VDIF IOUT=300mA
x0.98
800
mA
mV
Load regulation
30
100
Dropout Voltage
Line regulation
Refer to Dropout Voltage Table
∆VOUT/ IOUT=100mA
∆VIN VOUT+0.5V≤VIN≤6.0V
0.05
0.30
%/V
Ripple Rejection
RR
f=1kHz,Ripple 0.5Vp-p
1.5V≤VIN≤4.0V:
VIN-VOUT=1.0V
50
dB
4.1V≤VIN≤5.0V:
VIN-VOUT=0.75V
Output Voltage
Temperature Coefficient
Short Current Limit
Pull-down resistance for CE pin
CE Input Voltage “H”
CE Input Voltage “L”
Thermal Shutdown Detector
Threshold Temperature
Thermal Shutdown Released
Temperature
∆VOUT/ -40°C≤Topt≤85°C
∆T
±100
ppm
/°C
mA
MΩ
V
V
°C
ILIM
RPD
VOUT=0V
40
2.50
1.25
1.5
0.00
5.00
VIN
0.25
VCEH
VCEL
TTSD Junction Temperature
150
120
TTSR Junction Temperature
°C
■Dropout Voltage by Output Voltage (Topt=25°C)
Output Voltage
Dropout Voltage (V)
VOUT(V)
TYP.
0.35
0.30
MAX.
0.45
0.35
VOUT=1.5
VOUT=1.6
VOUT=1.7
0.25
0.20
0.15
0.12
0.30
0.25
0.20
0.18
1.8≤VOUT≤2.0
2.1≤VOUT≤2.4
2.5≤VOUT≤5.0
Rev. 1.11
-5-
■ TEST CIRCUITS
CE
CE
R1170Xxx1B Series
GND
VDD
VOUT
VDD
VOUT
OUT
Iout
IN
IN
OUT
ISS
R1170Xxx1B Series
10µF
10µF
10µF
10µF
GND
Standard Test Circuit
Supply Current Test Circuit
CE
R1170Xxx1B Series
GND
CE
VDD
VOUT
VDD
VOUT
OUT
IN
IN
OUT
Iout
R1170Xxx1B Series
10µF
10µF
10µF
P.G
I1 I2
GND
Test Circuit for Ripple Rejection, Input Transient
Response
Test Circuit for Load Transient Response
Rev. 1.11
- 6 -
■ Technical Notes on External Components and Typical Application
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 CL.
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 VDD and GND lines sufficient. If their impedance is high, current flows, the noise pick-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 capcitor between VOUT pin and GND pin for phase compensation as close as possible.
(Refer to the example of typical application)
Example of the typical application of R1170XxxxB
CE
R1170Xxx1B
GND
VDD
VOUT
IN
OUT
CI
CL
CI=10µF(Ceramic), CL=10µF(Ceramic)
Rev. 1.11
-7-
■ TYPICAL CHARACTERISTICS
1)Output Voltage vs. Output Current(Topt=25°C)
R1170x151B
1.8
R1170x301B
3.5
3
VIN=5V
VIN=4V
1.6
VIN=3.5V
VIN=2.5V
1.4
1.2
1
2.5
2
VIN=3.5V
VIN=2V
0.8
0.6
0.4
0.2
0
1.5
1
0.5
0
0
250
500
750
1000
1250
1500
0
250
500
750
1000
1250
1500
Output Current IOUT(mA)
OUT
Output Current I (mA)
R1170x501B
6
5
4
3
2
1
0
VIN=6V
VIN=5.5V
0
250
500
750
1000
1250
1500
Output Current IOUT(mA)
2)Output Voltage vs. Input Voltage(Topt=25°C)
R1170X151B
R1170X201B
IOUT = 1mA
2.2
1.7
2.1
2
OUT
I
= 1mA
1.6
1.5
1.4
1.3
1.2
1.1
IOUT = 10mA
OUT
I
= 10mA
1.9
1.8
1.7
1.6
1.5
1.4
IOUT = 100mA
IOUT = 300mA
IOUT = 100mA
OUT
I
= 300mA
1
2
3
4
5
6
1
2
3
4
5
6
IN
Input Voltage V (V)
IN
Input Voltage V (V)
Rev. 1.11
- 8 -
R1170X301B
R1170X401B
IOUT = 10mA
3.2
3.1
3
4.2
4.1
4
OUT
I
= 1mA
IOUT = 1mA
OUT
I
= 10mA
3.9
3.8
3.7
3.6
3.5
3.4
2.9
2.8
2.7
2.6
2.5
OUT
I
= 100mA
= 300mA
IOUT=100mA
OUT
I
IOUT=300mA
3.5
4
4.5
5
5.5
6
2
3
4
5
6
IN
IN
Input Voltage V (V)
Input Voltage V (V)
R1170x501B
5.2
5.0
4.8
4.6
4.4
4.2
4.0
3.8
IOUT=1mA
IOUT=10mA
IOUT=100mA
IOUT=300mA
4.0
4.5
5.0
Input Voltage V (V)
5.5
6.0
IN
3)Dropout Voltage vs. Output Current
R1170X151B
0.8
R1170X201B
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.7
0.6
25°C
85°C
0.5
25°C
0.4
0.3
0.2
0.1
0
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)
Rev. 1.11
-9-
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
0
100 200 300 400 500 600 700 800
OUT
Output Current I
(mA)
OUT
Output Current I
(mA)
R1170X501B
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
85°C
25°C
-40°C
0
100 200 300 400 500 600 700 800
OUT
Output Current I
(mA)
4)Output Voltage vs. Temperature
R1170X151B
R1170X201B
IN
V =3V
IN
V =2.5V
OUT
OUT
=10mA
I
=10mA
I
1.60
1.58
1.55
1.53
1.50
1.48
1.45
1.43
1.40
2.10
2.08
2.05
2.03
2.00
1.98
1.95
1.93
1.90
-50
-25
0
25
50
(°C)
75
100
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
Rev. 1.11
- 10 -
R1170X301B
R1170X401B
IN
V =4V
IN
V =5V
OUT
I
=10mA
OUT
I
=10mA
4.20
4.15
4.10
4.05
4.00
3.95
3.90
3.85
3.80
3.20
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.80
-50
-25
0
25
50
(°C)
75
100
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
R1170x501B
IN
OUT
V =6V , I
=10mA
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
5)Supply Current vs. Input Voltage(Topt=25°C)
R1170X151B
120
R1170X201B
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
IN
Input Voltage V (V)
Input Voltage VIN(V)
Rev. 1.11
-11-
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
IN
Input Voltage V (V)
IN
Input Voltage V (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
IN
IN
V =3V
V =2.5V
160
140
120
100
80
160
140
120
100
80
60
60
40
40
20
20
-50
-25
0
25
50
(°C)
75
100
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
Rev. 1.11
- 12 -
R1170X301B
R1170X401B
IN
V =5V
IN
V =4V
160
140
120
100
80
160
140
120
100
80
60
60
40
40
20
20
-50
-25
0
25
50
(°C)
75
100
-50
-25
0
25
50
(°C)
75
100
Temperature Topt
Temperature Topt
R1170x501B
IN
V =6V
160
140
120
100
80
60
40
20
-50
-25
0
25
50
75
100
Temperature Topt(℃)
7)Dropout Voltage vs. Set Output Voltage(Topt=25°C)
R1170x501B
0.7
IOUT=400mA
0.6
IOUT=600mA
0.5
IOUT=800mA
0.4
0.3
0.2
OUT
I
=100mA
0.1
0.0
1
2
3
4
5
SET
Set Output Voltage V (V)
Rev. 1.11
-13-
8)Ripple Rejection vs. Frequency
R1170X151B
R1170X201B
IN
V =3V+0.5Vp-p
IN
V =2.5V+0.5Vp-p
OUT
I
=100mA
OUT
I
=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
IN
V =5V+0.5Vp-p
IN
V =4V+0.5Vp-p
OUT
I
=100mA
OUT
I
=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
IN
OUT
=100mA
V =5.75+0.5Vp-p, I
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
Ripple Frequency f(kHz)
Rev. 1.11
- 14 -
9)Ripple Rejection vs. Input Voltage
OUT
I
= 10mA
R1170X301B
OUT
I
= 1mA
R1170X301B
OUT
C
= 10uF
OUT
C
= 10uF
60
60
50
40
30
20
10
0
f = 400Hz
f = 400Hz
50
f =1kHz
f =1kHz
f = 10kHz
40
f = 10kHz
30
20
10
0
3
3.2
3.4
3.6
3
3.2
3.4
3.6
IN
IN
Input Voltage V (V)
Input Voltage V (V)
R1170X301B
OUT
I
= 100mA
OUT
C
= 10uF
60
50
40
30
20
10
0
f = 400Hz
f =1kHz
f = 10kHz
3
3.2
3.4
3.6
Input Voltage VIN(V)
10)Input Transient Response (Topt=25°C)
tr=tf=10us
IOUT=100mA
R1170X151B
COUT=Ceramic 10uF
1.8
1.75
1.7
4
3.5
3
Input Voltage
1.65
1.6
2.5
2
Output Voltage
1.55
1.5
1.5
1
1.45
1.4
0.5
0
0
20
40
60
80
100
Time t(us)
120
140
160
180
200
Rev. 1.11
-15-
tr=tf=10us
R1170X301B
OUT
C =Ceramic 10uF
OUT
I
=100mA
3.4
3.3
3.2
3.1
3
6
5
4
3
2
1
0
Input Voltage
Output Voltage
2.9
2.8
0
20
40
60
80
100
Time t(us)
120
140
160
180
200
R1170X301B
tr=tf=10us
OUT
I
=100mA
OUT
C
= Ceramic 4.7uF
Input Voltage
3.4
3.3
3.2
3.1
3
6
5
4
3
2
1
0
Output Voltage
2.9
2.8
0
20
40
60
80
100
120
140
160
180
200
Time t(us)
tr=tf=10us
IOUT=100mA,
R1170X501B
COUT=Ceramic 10uF
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
120
140
160
180
200
Time t(us)
Rev. 1.11
- 16 -
tr=tf=10us
IOUT=100mA,
R1170X501B
COUT=Ceramic 4.7uF
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(us)
120
140
160
180
200
11)Load Transient Response(Topt=25°C)
IN
C
= Ceramic 10uF
tr=tf=3us
V =2.5V
R1170X151B
IN
COUT =Ceramic 10uF
2
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(us)
tr=tf=3us
IN
C
= Ceramic 10uF
R1170X301B
IN
OUT
C =Ceramic 10uF
V =4V
3.5
3.4
3.3
3.2
3.1
3
120
100
80
60
40
20
0
Output Current
Output Voltage
2.9
0
20
40
60
80
100
120
140
160
180
200
Time t(us)
Rev. 1.11
-17-
tr=tf=3us
IN
C = Ceramic 10uF
R1170X301B
IN
OUT
C =Ceramic 4.7uF
V =4V
3.5
3.4
3.3
3.2
3.1
3
120
100
80
60
40
20
0
Output Current
Output Voltage
2.9
0
20
40
60
80
100
120
140
160
180
200
Time t(us)
IN
OUT
tr=tf=3us, C =Ceramic 10uF, C
=Ceramic 10uF
R1170X501B
5.20
5.15
5.10
5.05
5.00
4.95
4.90
150
Output Current
Output Voltage
100
50
0
-50
-100
-150
0
20
40
60
80
100
Time t(us)
120
140
160
180
200
tr=tf=3us, CIN = Ceramic 10uF
COUT= Ceramic 4.7uF
R1170X501B
5.20
150
100
50
Output Current
5.15
5.10
5.05
5.00
4.95
4.90
0
Output Voltage
-50
-100
-150
0
20
40
60
80
100
120
140
160
180
200
Time t(us)
Rev. 1.11
- 18 -
12)Stable Area(Topt=25°C,VIN=Set Output Voltage+1V,CIN=Ceramic 10µF)
CE
Vout
Ceramic
Spectrum
Analyzer
R1170XXXXB
Capacitor
S.A.
VIN
GND
ESR
Ceramic
Vin
IIout
Capacitor
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
OUT
C
=Ceramic 4.7uF
OUT
C
=Ceramic 10uF
100
10
100
10
1
1
0.1
0.1
0
200
400
600
(mA)
800
0
200
400
600
800
OUT
Output Current I
Output Current IOUT(mA)
R1170X301B
OUT
R1170X301B
OUT
C
=Ceramic 10uF
C
=Ceramic 4.7uF
100
10
1
100
10
1
0.1
0.1
0
200
400
600
800
0
200
400
600
800
OUT
Output Current IOUT(mA)
Output Current I
(mA)
Rev. 1.11
-19-
OUT
C
=Ceramic 4.7uF
R1170X501B
R1170X501B
OUT
C
=Ceramic 10uF
100
10
100
10
1
1
0.1
0.01
0.1
0.01
0
100 200 300 400 500 600 700 800
0
100 200 300 400 500 600 700 800
Output Current IOUT(mA)
OUT
Output Current I (mA)
Rev. 1.11
- 20 -
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