R1161x SERIES
3-MODE 300mA LDO REGULATOR
NO.EA-106-130415
OUTLINE
The R1161x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, and low ON-resistance. Each of these voltage regulator ICs consists of a voltage reference unit, an error
amplifier, resistors for setting output voltage, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. To prevent the destruction by over
current, current limit circuit is included. The R1161x Series have 3-mode. One is standby mode with CE or
standby control pin. Standby mode realizes ultra small consumption current off mode. Other two modes are
realized with ECO pin. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative with
ECO pin. Consumption current is reduced at Low Power Mode compared with Fast Transient Mode. Output
voltage is maintained between FT mode and LP mode.
The output voltage of these ICs is internally fixed with high accuracy. Since the packages for these ICs are
SOT-23-5, SON-6 (Non-promotion), and HSON-6 (Non-promotion), high density mounting of the ICs on boards
is possible.
FEATURES
•
Supply Current ..................................................Typ. 3.5μA (Low Power Mode, V
OUT
<1.6V),
Typ. 80μA (Fast Transient Mode, V
OUT
<1.8V)
Typ. 60μA (Fast Transient Mode, V
OUT
≥
1.8V)
•
Standby Mode ...................................................Typ. 0.1μA
•
Dropout Voltage ................................................Typ. 0.48V (I
OUT
=300mA
Output Voltage=1.0V Type)
Typ. 0.31V (I
OUT
=300mA
Output Voltage=1.5V Type)
Typ. 0.23V (I
OUT
=300mA
Output Voltage=3.0V Type)
•
Ripple Rejection................................................Typ. 65dB (f=1kHz, FT Mode)
•
Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
•
Line Regulation .................................................Typ. 0.01%/V (at Fast Transient Mode)
•
Output Voltage Accuracy...................................±2.0%(±3.0% at LP Mode)
•
Packages .........................................................SOT-23-5, SON-6 (Non-promotion),
HSON-6 (Non-promotion)
•
Output Voltage ..................................................0.8V to 3.3V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
•
Input Voltage .....................................................Min. 1.40V (V
OUT
≥
1.0V)
Min. 1.45V (V
OUT
<1.0V)
•
Built-in fold-back protection circuit ....................Typ. 50mA (Current at short mode)
•
External Capacitors...........................................C
IN
=
C
OUT
=
Tantalum 1.0μF (V
OUT
<1
.
0V)
C
IN
=
C
OUT
=Ceramic
1.0μF (V
OUT
≥
1.0V)
APPLICATIONS
•
Precision Voltage References.
•
Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
•
Power source for battery-powered equipment.
1
R1161x
SELECTION GUIDE
The output voltage, chip enable polarity, auto discharge function, and package, etc. for the ICs can be
selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R1161Nxx1
∗
-TR-FE
R1161Dxx1
∗
-TR-FE
SOT-23-5
3,000 pcs
Yes
Yes
Yes
Yes
SON-6
3,000 pcs
Yes
(Non-promotion)
HSON-6
3,000 pcs
Yes
R1161Dxx2
∗
-TR-FE
(Non-promotion)
xx : The output voltage can be designated in the range from 0.8V(08) to 3.3V(33) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
∗
: CE pin polarity and auto discharge function at off state are options as follows.
(A) "L" active type, without auto discharge function at off state
(B) "H" active type, without auto discharge function at off state
(D) "H" active type, with auto discharge function at off state
The products scheduled to be discontinued : "Non-promotion"
These products will be discontinued in the future. We advise you to select other products.
3
R1161x
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
ECO
V
CE
V
OUT
I
OUT
P
D
P
D
P
D
Topt
Tstg
Input Voltage
Input Voltage (ECO Pin)
Input Voltage (
CE
/CE Pin)
Output Voltage
Output Current
Power Dissipation (SOT23-5)*
Power Dissipation (SON-6) (Non-promotion)*
Power Dissipation (HSON-6) (Non-promotion)*
Operating Temperature Range
Storage Temperature Range
6.5
-0.3 ~ 6.5
-0.3 ~ 6.5
-0.3 ~ V
IN
+0.3
350
420
500
900
-40 ~ 85
-55 ~ 125
V
V
V
V
mA
mW
°
C
°
C
* ) For Power Dissipation, please refer to PACKAGE 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 CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
5
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