2002.Apr.1
800mA LDO REGULATOR
R1170X series
s
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.
s
FEATURES
qUltra-Low
Supply Current
• • • • • • • •
TYP. 80µA
qLow
Standby Current
• • • • • • • • • • •
TYP. 0.1µA
qOutput
Current
• • • • • • • • • • • • • • •
MIN. 800mA(V
IN
=V
OUT
+1.0V)
qOutput
Voltage
• • • • • • • • • • • •
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V
qHigh
Output Voltage Accuracy
• • • •
±2.0%
qLow
Dropout Voltage
• • • • • • • • • • • •
TYP. 0.12V(V
OUT
=3.0V, I
OUT
=300mA)
qLine
Regulation
• • • • • • • • • • • •
TYP. 0.05%/V
qSmall
Package
• • • • • • • • • • • • • • • •
SOT-89-5, HSON6, SC-84(Under Development)
qBuilt-in
Current Limit Circuit
qBuilt-in
Thermal Shunt Circuit
qLow
Temperature-drift Coefficient of Output Voltage
• • • • • • • • •
TYP.±100ppm/°C
s
APPLICATIONS
qLocal
Power source for Notebook PC.
qLocal
Power source for portable appliances, cameras, and videos.
qLocal
Power source for equipment of battery-use.
qLocal
Power source for home appliances.
Rev. 1.11
-1-
s
BLOCK DIAGRAMS
R1170H /U
(Under Development)
Series
R1170D Series
V
DD
4
-
+
5
V
OUT
V
DD
6
V
DD
5
-
+
1
2
V
OUT
V
OUT
Vref
Current Limit
Vref
GND
2
Current Limit
GND
4
CE
1
CE
3
s
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
b
c
d
Contents
Package Type; H: SOT89-5, D: HSON-6P, U:SC-84(Under Development)
Designation of Output Voltage(V
OUT
)
Stepwise setting with 0.1V increment in the range from 1.5V to 5.0V (from 4.1V to 5.0V: Under
Development)
Designation of option;
A: Built-in Chip Enable Circuit, Active at “L”
B: Built-in Chip Enable Circuit, Active at “H”
Designation of Taping Type;
T1 or T2 (SOT89-5), TR(HSON-6/SC-84(Under Development)) (Refer to Taping Specifications)
s
PIN CONFIGURATION
q
SOT-89-5
5
4
Mark
Side
2
3
1
Rev. 1.11
-2-
q
HSON-6P
6
5
4
1
q
SC-84 (Under Development)
2
3
5
4
1
s
PIN DESCRIPTION
2
3
SOT89-5/SC-84(Under Development)
Pin No.
Symbol
Description
1
CE or CE
Chip Enable Pin Voltage Regulator Output Pin
2
GND
Ground Pin
3
NC
No Connection
4
V
DD
Input Pin
5
V
OUT
Voltage Regulator Output Pin
HSON-6P
Pin No.
1
2
3
4
5
6
Symbol
V
OUT
V
OUT
CE or CE
GND
V
DD
V
DD
Description
Voltage Regulator Output Pin
Voltage Regulator Output Pin
Chip Enable Pin Voltage Regulator Output Pin
Ground Pin
Input Pin
Input Pin
Rev. 1.11
-3-
s
ABSOLUTE MAXIMUM RATINGS
Item
Input Voltage
Input Voltage(CE or CE Input Pin)*
Note
Output Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
T
opt
T
stg
Rating
Unit
7.0
V
-0.3 ~ V
IN
+0.3
V
-0.3 ~ V
IN
+0.3
V
1.2
A
Internally limited
°C
-40 ~ 85
°C
-55 ~ 125
s
ELECTRICAL CHARACTERISTICS
q
R1170XxxxA
Item
Input Voltage
Supply Current1
Standby Current
Output voltage
Output Current
Load regulation
Dropout Voltage
Line regulation
Ripple Rejection
Symbol
V
IN
Conditions
V
IN
-V
OUT
=1.0V
V
CE
=GND
V
IN
=V
CE
=6.0V
V
IN
-V
OUT
=1.0V
I
OUT
=100mA
V
IN
-V
OUT
=1.0V
V
IN
-V
OUT
=1.0V
1mA≤I
OUT
≤300mA
I
OUT
=300mA
I
OUT
=100mA
V
OUT
+0.5V≤V
IN
≤6.0V
f=1kHz,Ripple 0.5Vp-p
1.5V≤V
IN
≤4.0V:
V
IN
-V
OUT
=1.0V
4.1V≤V
IN
≤5.0V:
V
IN
-V
OUT
=0.75V
I
OUT
=10mA
-40°C
≤
Topt
≤
85°C
V
OUT
=0V
x0.98
800
30
100
MIN.
(Topt=25°C)
TYP.
MAX.
6.0
80
160
0.1
Unit
V
µA
I
SS1
Istb
V
OUT
I
OUT1
∆V
OUT
/
∆I
OUT
V
DIF
∆V
OUT
/
∆V
IN
RR
1.0
x1.02
µA
V
mA
mV
Refer to Dropout Voltage Table
0.05
0.30
%/V
50
dB
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
∆V
OUT
/
∆T
I
LIM
R
PU
V
CEH
V
CEL
T
TSD
T
TSR
±100
40
2.50
1.25
1.50
0.00
Junction Temperature
Junction Temperature
5.00
V
IN
0.25
150
120
ppm
/°C
mA
MΩ
V
V
°C
°C
Rev. 1.11
-4-
q
R1170xxxxB
Item
Input voltage
Supply Current1
Standby Current
Reference Voltage for
Adjustable Voltage Regulator
Output Current
Load regulation
Dropout Voltage
Line regulation
Ripple Rejection
Symbol
Conditions
V
IN
I
SS1
V
IN
-V
OUT
=1.0V V
CE=
V
IN
Istb V
IN
=6.0V, V
CE
=GND
V
OUT
V
IN
-V
OUT
=1.0V
I
OUT
=100mA
I
OUT1
V
IN
-V
OUT
=1.0V
∆V
OUT
/ V
IN
-V
OUT
=1.0V
∆I
OUT
1mA≤I
OUT
≤300mA
V
DIF
I
OUT
=300mA
∆V
OUT
/ I
OUT
=100mA
∆V
IN
V
OUT
+0.5V≤V
IN
≤6.0V
RR
f=1kHz,Ripple 0.5Vp-p
1.5V≤V
IN
≤4.0V:
V
IN
-V
OUT
=1.0V
4.1V≤V
IN
≤5.0V:
V
IN
-V
OUT
=0.75V
∆V
OUT
/ -40°C≤Topt≤85°C
∆T
I
LIM
V
OUT
=0V
R
PD
V
CEH
V
CEL
T
TSD
Junction Temperature
T
TSR
Junction Temperature
MIN.
(Topt=25°C)
TYP.
MAX.
Unit
6.0
V
µA
80
160
1.0
µA
0.1
x1.02
V
mA
mV
x0.98
800
30
100
Refer to Dropout Voltage Table
0.05
0.30
%/V
50
dB
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
±100
40
2.50
1.25
1.5
0.00
5.00
V
IN
0.25
150
120
ppm
/°C
mA
MΩ
V
V
°C
°C
qDropout
Voltage by Output Voltage (Topt=25°C)
Output Voltage
Dropout Voltage (V)
V
OUT
(V)
TYP.
MAX.
V
OUT
=1.5
0.35
0.45
V
OUT
=1.6
0.30
0.35
V
OUT
=1.7
1.8≤V
OUT
≤2.0
2.1≤V
OUT
≤2.4
2.5≤V
OUT
≤5.0
0.25
0.20
0.15
0.12
0.30
0.25
0.20
0.18
Rev. 1.11
-5-
