2001. Nov. 28
300mA LDO REGULATOR R1130XxxxA/B/C Series
s
OUTLINE
The R1130Xxxxx Series are voltage regulator (VR) ICs by CMOS process. VR function has features of high
ripple rejection, low dropout voltage, high output voltage accuracy, and ultra-low supply current. Each of these
ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, and a current
limit circuit. Each of the R1130xxxxA/B type includes also a chip enable circuit.
Output Voltage of the R1130xxxxC type is adjustable with external resistors.
Output Voltage of R1130xxxxA/B is fixed in the IC. Low supply current by the merit of CMOS process and
built-in transistors with low ON-resistance make low dropout voltage. These regulators in the R1130xxxxx
Series 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 R1130xxxxx series are suitable for power supply for CD-drives, DVD-drives, and so forth.
Since the package for these ICs is the SOT-89-5 package or HSON-6P, high density mounting of the ICs on
boards is possible.
s
FEATURES
qUltra-Low
Supply Current
• • • • • • • •
TYP. 50µA
qLow
Standby Current
• • • • • • • • • • •
TYP. 0.1µA (VR) for A type
qHigh
Ripple Rejection
• • • • • • • • • •
TYP. 60dB(f=1kHz)(VR)
qOutput
Current
• • • • • • • • • • • • • • •
MIN. 300mA(Vin=Vout+1V)
qOutput
Voltage (VR)
• • • • • • • • • •
Stepwise setting with a step of 0.1V in the range of 1.5 to 5.0V(A/B Version)
(Reference 1.8V(C Version))
qHigh
Output Voltage Accuracy
• • • •
±2.0%(VR) for A/B type,
±2.0%(Reference Voltage for adjustable VR) for C type
qLow
Dropout Voltage
• • • • • • • • • • •
TYP. 0.2V(I
OUT
=100mA)(VR)
qSmall
Packages
• • • • • • • • • • • • • • •
SOT-89-5, HSON-6P
qBuilt-in
Current Limit Circuit
qLow
Temperature-drift Coefficient of Output Voltage
• • • • • • • • •
TYP.±100ppm/°C
qAbsolute
Maximum Voltage
• • • • • •
9V
qInternal
Phase Compensation (small output capacitance such as 0.1uF Ceramic can be used with.)
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APPLICATIONS
qPower
source for CD-drives and DVD-drives, HDD.
qLocal
Power source for Notebook PC.
Rev. 1.10
-1-
s
SELECTION GUIDE
The output voltage, chip-enable polarity, the taping type can be selected at the user’s request. The selection
can be made with designating the part number as follows;
R1130X XXXX-XX
←
Part Number
↑ ↑ ↑
a b c
↑
d
Code
a
b
c
d
Contents
Package Type; H: SOT89-5, D: HSON6
Serial Number for Voltage Setting
Designation of option;
A: Fixed Output Voltage Regulator with CE
pin ("L" enable)
B: Fixed Output Voltage Regulator with CE
pin ("H" enable)
C: Output Voltage Adjustable Regulator with
CE pin ("H" enable)
Designation of Taping Type;
T1 or T2 (Refer to Taping Specifications) for SOT89-5
TR or TL for HSON-6P
s
PIN CONFIGURATION
q
SOT-89-5
5
4
Mark
Side
2
3
5
4
1
q
HSON-6P
6
Mark
Side
1
2
3
Rev. 1.10
-3-
s
PIN DESCRIPTION
SOT89-5
Pin No.
1
2
3
4
5
HSON-6P
Pin No.
1
2
3
Symbol
V
OUT
V
DD
GND
N.C.(A/B type)
ADJ(C type)
CE (A type)
or CE(B/C type)
Symbol
V
DD
GND
N.C.(A/B type)
ADJ(C type)
4
5
6
N.C.
CE (A type)
or CE(B/C type)
V
OUT
Input Pin
Ground Pin
No Connection
Adjustable Regulator feedback Input Pin (Connect to resistor voltage divider.)
No Connection
Chip Enable Pin
Voltage Regulator Output Pin
Voltage Regulator Output Pin
Input Pin
Ground Pin
No Connection
Adjustable Regulator feedback Input Pin (Connect to resistor voltage divider.)
Chip Enable Pin
Description
Description
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ABSOLUTE MAXIMUM RATINGS
Item
Input Voltage
Input Voltage(CE or CE Input Pin)
Input Voltage(ADJ Input Pin)
Output Voltage
Output Current
Power Dissipation (SOT-89-5)
Operating Temperature
Storage Temperature
Symbol
V
IN
V
CE
V
ADJ
V
OUT
I
OUT
P
D
T
opt
T
stg
Rating
9.0
-0.3 ~ V
IN
+0.3
-0.3 ~ V
IN
+0.3
-0.3 ~ V
IN
+0.3
450
500
-40 ~ 85
-55 ~ 125
Unit
V
V
V
V
mA
mW
°C
°C
Rev. 1.10
-4-
s
ELECTRICAL CHARACTERISTICS
qR1130XxxxA
Symbol
Item
Input Voltage
Supply Current1
Standby Current
Output voltage
Conditions
V
IN
-V
OUT
=1.0V V
IN
=GND
V
IN
-V
OUT
=1.0V V
IN
=V
CE
(Topt=25°C)
MIN.
2.5
TYP.
50
0.1
MAX. Unit
8.0
V
µA
100
µA
1.0
V
IN
I
SS1
I
stby
V
OUT
V
IN
-V
OUT
=1.0V
V
x0.98 Set x1.02
1mA≤I
OUT≤
80mA
V
OUT
I
OUT1
Output Current
Refer to the table of Input Voltage 300
mA
by Set Output Voltage
∆V
OUT
/ Load regulation
V
IN
-V
OUT
=1.0V
40
80
mV
∆I
OUT
1mA≤I
OUT≤
80mA
V
DIF
Dropout Voltage
I
OUT
=100mA
Refer to the Table of Dropout
Voltage by Set Output Voltage
∆V
OUT
/ Line regulation
0.1
0.2
%/V
I
OUT
=80mA,
∆V
IN
Set
V
OUT
≥2.0V:V
OUT
+0.5V≤V
IN
≤8.0V
Set V
OUT
≤1.9V:2.5V≤V
IN
≤8.0V
RR
Ripple Rejection
f=1kHz,Ripple 0.5Vp-p, I
OUT
=80mA
60
dB
Set V
OUT≥1.8V:
V
IN
-V
OUT
=1.0V
Set V
OUT≤1.7V:
V
IN=2.8V
∆V
OUT
/ Output Voltage
±100
I
OUT
=10mA, V
IN
-V
OUT
=1.0V
ppm
∆T
Temperature Coefficient
-40°C
≤
Topt
≤
85°C
/°C
I
LIM
Short Current Limit
Set V
OUT
≤3.9V
,
V
OUT
=0V
70
mA
Set V
OUT
≥4.0V
,
V
OUT
=0V
50
R
PU
Pull-up resistance for CE pin
2.5
5.0
10.0
MΩ
V
CEH
CE Input Voltage “H”
V
IN
=2.5V
1.5
V
IN
V
V
CEL
CE Input Voltage “L”
V
IN
=2.5V
0.00
0.25
V
Rev. 1.10
-5-
嵌入式系统
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