ULTRA SMALL PACKAGE VOLTAGE
REGULATOR
Rx5RW SERIES
OUTLINE
NO. EA-048-0311
The Rx5RW Series are CMOS-based voltage regulator ICs with high accuracy output voltage and ultra-low
supply current developed. Each of these ICs consists of a driver transistor, a voltage reference unit, an error
amplifier, resistors for setting output volt-age and a current limit circuit.
The output voltage of these ICs is fixed with high accuracy.
Even if V
OUT
is shorted to GND, the included current limit circuit protects the ICs from the destruction.
Furthermore, Rx5RWxxA/B have a chip enable function, so that the supply current on standby can be minimized.
Since the packages for these ICs are SC-82AB (Super Mini-mold) package and SON1612-6, high density
mounting of the ICs on boards is possible.
FEATURES
Ultra-Low Supply Current ............................................ Typ. 1.5 A
(except pull-up/pull-down current for
CE
/CE pin)
Standby Current ........................................................... Typ. 0.1 A
Dropout Voltage ...........................................................Typ. 40mV (I
OUT
1mA, Rx5RW30A/B)
Low Temperature-Drift Coefficient of Output Voltage .. Typ. 100ppm/ C
Excellent Line Regulation ............................................ Typ. 0.05%/V
High Accuracy Output Voltage ..................................... 2.0%
Ultra-Small Packages ..................................................SC-82AB (Super Mini-mold), SON1612-6
Built-in Current Limit Circuits
APPLICATIONS
Power source for battery-powered equipment.
Power source for cameras, VCRs, camcorders, hand-held audio instruments and hand-held communication
equipment.
Precision voltage references.
1
Rx5RW
BLOCK DIAGRAMS
Rx5RWxxA
V
DD
2
-
+
Vref
Current Limit
CE 4
1 GND
CE 4
Vref
Current Limit
1 GND
3 V
OUT
V
DD
2
-
+
Rx5RWxxB
3 V
OUT
Rx5RWxxC
V
DD
2
3 V
OUT
+
-
Vref
NC 4
Current Limit
1 GND
SELECTION GUIDE
The output voltage, the active type, and the packing type for the ICs can be selected at the user's request.
The selection can be made with designating the part number as shown below:
Rx5RWxxxx-xx
a
Code
a
b
c
b cd e
Part Number
Contents
Designation of Package Type
Q: SC-82AB D:SON1612-6
Setting Output Voltage (V
OUT
):
Stepwise setting with a step of 0.1V in the range of 1.5V to 6.0V is possible.
Designation of Chip enable Active Type:
A: “L” active type C: no chip enable type
B: “H” active type
Designation of Packing Type:
A: Taping
B: Antistatic bag (for Sample only)
Designation of Taping Type: TR (refer to Taping Specifications)
d
e
2
Rx5RW
PIN CONFIGURATION
SC-82AB
4
3
SON1612-6
654
(mark side)
123
1
2
PIN DESCRIPTION
SC-82AB
Pin No
1
2
3
4
Symbol
GND
V
DD
V
OUT
CE
or CE or NC
Pin Description
Ground Pin
Input Pin
Output Pin
Chip Enable Pin or No Connection
SON1612-6
Pin No
1
2
3
4
5
6
Symbol
CE
or CE or NC
Pin Description
Chip Enable Pin or No Connection
Input Pin
Output Pin
No Connection
Input Pin
Ground Pin
V
DD
V
OUT
NC
V
DD
GND
3
Rx5RW
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Topt
Tstg
Input Voltage
Input Voltage for
CE
/CE Pin
Output Voltage
Output Current
Power Dissipation(SC-82AB)
Power Dissipation(SON1612-6)
Operating Temperature
Storage Temperature
Item
Rating
9
0.3 to V
IN
0.3
0.3 to V
IN
0.3
150
150
500
Note1
Unit
V
V
V
mA
mW
C
C
40 to 85
55 to 125
*Note 1: This specification is at mounted on board.
P
D
depends on conditions of mounting on board. This specification is based on the measurement at the
condition below:
Measurement Conditions
Environment: Mounted on board (Wind velocity 0m/s)
Board Material: FR-4 (2-layer)
Board dimensions: 40mm 40mm t1.6mm
Copper Area: 50%
700
600
500
400
P
D
(mW)
300
200
100
0
0
25
50
75
100
125
Temperature Topt( C)
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device. These
are stress ratings only and do not necessarily imply functional operation below these limits.
4
Rx5RW
ELECTRICAL CHARACTERISTICS
Rx5RW30A
Topt 25 C
Symbol
V
OUT
I
OUT
V
OUT
/ I
OUT
V
DIF
I
SS
Istandby
V
OUT
/ V
IN
V
IN
V
OUT
/ Topt
I
LIM
R
PU
V
CEH
V
CEL
Item
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Standby Current
Line Regulation
Input Voltage
Output Voltage Temperature
Coefficient
Short Current Limit
Pull up resistance for CE pin
CE
Input Voltage “H”
CE
Input Voltage “L”
Conditions
V
IN
5.0V
10 A I
OUT
V
IN
5.0V
V
IN
5.0V,
1mA I
OUT
I
OUT
1mA
V
IN
5.0V
V
IN
5.0V, V
CE
5.0V
I
OUT
1mA
V
OUT
0.5V
V
IN
8V
50mA
10mA
Min.
2.940
50
Typ.
3.000
Max.
3.060
Unit
V
mA
40
40
1.5
0.1
0.00
0.05
60
60
3.0
1.0
0.20
8.0
mV
mV
A
A
%/V
V
ppm/
C
mA
I
OUT
10mA
40 C Topt
V
OUT
0V
85 C
1.5
1.5
0.25
100
40
4.0
12.0
M
V
V
5
