RICOH R1170X Technical data
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-
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