Product Specification
IXD1204/IXD1205
PS035201-0615 PRELIMINARY 1
High Speed LDO Regulator with ON/OFF Control
FEATURES
Output Current up to 150 mA (300 mA for
IXD1204E/H type)
Operating Voltage 2 V – 10 V
Output Voltage Range
from 1.8 V to 6.0 V (IXD1204)
from 0.9 to 1.75 V (IXD1205)
Output Voltage Accuracy ±2% or ±1%
Dropout Voltage 60 mV @ 30 mA , 0.20 V @
100 mA
Low Power Consumption at 70 μA typical
Standby Current less than 0.1 µA typical
Ripple Rejection
70 dB at 10 kHz (IXD1204)
60 dB at 10 kHz (IXD1205)
Low ESR Ceramic Capacitor compatible
Operating Ambient Temperature - 40 + 85
0
C
Packages : SOT-25, SOT-89-5 , and USP-6B
EU RoHS Compliant, Pb Free
APPLICATIONS
Mobile phones
Cameras, VCRs
Various portable equipment
Reference voltage source
DESCRIPTION
The IXD1204/1205 are highly precise, low noise,
positive voltage LDO regulators manufactured using
CMOS processes. The IXD1204/1205 have a high
ripple rejection factor and low dropout. They consist
of a voltage reference, an error amplifier, a current
limiter, a phase compensation circuit, and a driver
transistor.
Output voltage is selectable in 0.05V increments
within a range of 0.9 V ~ 6.0 V.
The IXD1204/1205 series is compatible with low ESR
ceramic capacitors, and due to excellent transient
response, they maintain stability even during
significant load fluctuations. The current limiter's
foldback circuit operates also as a short circuit
protection.
The chip enable (CE) function makes it possible to
disable IC, greatly reducing power consumption.
This regulator is available in SOT-25, SOT-89-5, and
USP-6B packages.
TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTIC
Ripple Rejection Ratio (IXD1204/05x302)
IXD1204/05 BF302
V
IN
= 4 V
DC
+ 1 Vp-p
AC
, I
OUT
= 30 mA, C
L
= 1 μF (ceramic)
Product Specification
IXD1204/IXD1205
PS035201-0615 PRELIMINARY 2
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
V
IN
– 0.3 ~ 12.0
V
Output Current
I
OUT
500
1)
mA
Output Voltage
V
OUT
– 0.3 ~ V
IN
+ 0.3
V
CE Input Voltage
V
CE
– 0.3 ~ V
IN
+ 0.3
V
Power Dissipation
2)
SOT-25
P
D
250 (600 PCB mounted)
mW
SOT-89-5
500 (1300 PCB mounted)
USP-6C
120 (1000 PCB mounted)
Operating Temperature Range
T
OPR
– 40 ~ + 85
0
C
Storage Temperature Range
T
STG
– 55 ~ +125
0
C
All voltages are in respect to V
SS
1) I
OUT
≤ Pd/ (V
IN
-V
OUT
)
2)This is a reference data taken by using the test board. Please refer to page 23 to 25 for details.
ELECTRICAL OPERATING CHARACTERISTICS
IXD1204 Type A, B, C, D
PARAMETER
CONDITIONS
Ta = 25
0
C
-40
0
C ≤Ta ≤ 85
0
C
UNIT
CIRCUIT
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
Output Voltage (2%)
I
OUT
= 30 mA
V
OUT(T)
x
0.98
V
OUT(T)
*
V
OUT(T)
x
1.02
V
OUT(T)
x
0.97
V
OUT(T)
*
V
OUT(T)
x
1.03
V
Output Voltage (1%)
V
OUT(T)
x
0.99
V
OUT(T)
*
V
OUT(T)
x
1.01
V
OUT(T)
x
0.98
V
OUT(T)
*
V
OUT(T)
x
1.02
Maximum Output Current
150
150
mA
Load Regulation
1 mA ≤ I
OUT
≤ 100 mA
15
50
30
80
mV
Dropout Voltage
2)
I
OUT
= 30 mA
E-1
mV
I
OUT
= 100mA
E-2
Supply
Current
Type A
V
CE
= V
IN
= V
OUT(E)
+ 1.0 V
50
80
120
50
90
145
µA
Type B
40
70
100
40
80
120
Standby Current
V
CE
= 0 V
0.01
0.10
0.05
1.00
µA
Line Regulation
V
OUT(E)
+ 1.0 V ≤ V
IN
≤ 10 V
I
OUT
= 30 mA,
0.01
0.20
0.05
0.30
%/V
Input Voltage
2
10
2
10
V
Output Voltage
Temperature
Characteristics
I
OUT
= 30 mA
- 40
0
C ≤ T
OPR
≤ 85
0
C
± 100
ppm/
0
C
Output Noise
I
OUT
= 10 mA,
300 Hz -50 kHz
30
µV
RMS
Power Supply Rejection
Ratio
V
IN
= (V
OUT(E)
+ 1.0 V) + 1
Vp-p
AC
I
OUT
= 50 mA, f = 10 kHz
70
dB
Current Limit
V
CE
=V
IN
= V
OUT(E)
+ 1.0 V
300
280
mA
Short Current
V
CE
=V
IN
= V
OUT(E)
+ 1.0 V
50
60
mA
CE “H” Level Voltage
1.6
V
IN
1.7
V
IN
V
CE “L” Level Voltage
0.25
0.20
V
CE “H” Level
Current
Type A
V
CE
= V
IN
= V
OUT(E)
+ 1.0 V
3.2
20.9
3.0
25.0
µA
Type B, C, D
-0.1
0.10
-0.15
0.15
CE “L” Level
Current
Type A, B, D
V
CE
= 0 V, V
IN
=
V
OUT(E)
+1.0V
-0.1
-0.1
-0.15
0.15
µA
Type C
-20.0
-3.2
-25.0
-3.0
NOTE:
1) Unless otherwise stated, V
IN
= V
OUT (T)
+1.0 V. V
OUT (T)
is Nominal output voltage and V
OUT (E)
is Effective output voltage, (I.e. the output
voltage when "V
OUT (T)
+1.0V" is provided at the V
IN
pin, while maintaining a certain I
OUT
value).
2) V
DIF
= {V
IN
-V
OUT
}, where V
IN1
is the input voltage when V
OUT
= 0.98 V
OUT(T)
appears, while input voltage gradually decreases