XC6419
Series
Dual LDO Regulator (ch1=300mA, ch2=100mA) with ON/OFF Switch
ETR0338-003
The XC6419 series is a dual CMOS LDO regulator. The series features high accuracy, low output noise, high
ripple rejection and low dropout and consists of a voltage reference, error amplifier, driver transistor, current limiter,
thermal shutdown circuit and phase compensation circuit. Each output voltage is set independently by laser
trimming and selectable in 0.05V increments within a range of 0.8 to 5.0V.
The EN function turns each output of the two regulators off independently. In this state, the electric charge at the
output capacitor (C
L
) is discharged via the internal auto-discharge switch, and as a result the V
OUT
voltage quickly
returns to the V
SS
level. The output stabilization capacitor (C
L
) is also compatible with low ESR ceramic
capacitors. The high level of output stability is maintained even during frequent load fluctuations, due to the
excellent transient response performance. VR1 and VR2 are completely isolated so that a cross talk during load
fluctuations is minimized.
■GENERAL
DESCRIPTION
■APPLICATIONS
●
Mobile phones
●
Cordless phones, Wireless communication equipment
●
Portable games
●
Digital still cameras, Digital video cameras
●
Portable audio equipment
●
PDAs
■FEATURES
Input Voltage Range
Maximum Output Current
Output Voltage Range
Output Accuracy
:
:
:
:
1.5½6.0V
ch1.300mA / ch2.100mA
0.8½5.0V
±1% (XC6419A/B)
±20mA@ V
OUT
≦2.0V
±2% (XC6419C/D)
±30mA@ V
OUT
≦1.5V
ch1.115mV＠I
OUT
=200mA
ch2.115mV＠I
OUT
=50mA
ch1.28μA / ch2.23μA
Less than 0.1μA
60dB＠f=1kHz
ch1.400mA / ch2.150mA
Dropout Voltage
（V
OUT
=2.8V）
Low Power Consumption
Stand-by Current
Ripple Rejection
Current Limit
Low ESR Capacitor
CL High Speed Discharge
Small Packages
:
:
:
:
:
:
USP-6C, SOT-26
■TYPICAL
APPLICATION CIRCUITS
6
1
2
3
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Dropout
Voltage vs. Output Current
400
350
DropoutVoltage :
:
Vdif [mV]
Dropout Voltage Vdif (mV)
300
250
200
150
100
50
0
0
50
100
150
200
250
300
Output Current
:
OUT
(mA)
OutputCurrent
:
I
OUT
[mA]
ch1
1CH
ch2
2CH
ch2 Maximum Output Current
2CH最大出力電流
V
OUT
=2.8V
V
OUT
=2.8V
85℃
25℃
-40℃
5
4
100mA
ch1 Maximum Output Current
1CH最大出力電流
300mA
1/29
XC6419
Series
■PIN
CONFIGURATION
*The dissipation pad for the USP-6C package
should be solder-plated in recommended mount
pattern and metal masking so as to enhance
mounting strength and heat release.
connected to the V
SS
(No. 4) pin.
If the pad
needs to be connected to other pins, it should be
■PIN
ASSIGNMENT
PIN NUMBER
SOT-26
1
2
3
4
5
6
USP-6C
3
2
1
6
4
5
PIN NAME
EN1
V
IN
EN2
V
OUT2
V
SS
V
OUT1
FUNCTIONS
: ON/OFF Control 1
: Power Input
: ON/OFF Control 2
: Output 2
: Ground
: Output 1
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6419①②③④⑤⑥
DESIGNATOR
①
DESCRIPTION
VR1
SYMBOL
A
B
C
D
A
B
C
D
01½
M
E
R
L
DESCRIPTON
: EN High Active without C
L
auto discharge
(Accuracy:1%)
: EN High Active with C
L
auto discharge
(Accuracy:1%)
: EN High Active without C
L
auto discharge
(Accuracy:2%)
: EN High Active with C
L
auto discharge
(Accuracy:2%)
: EN High Active without C
L
auto discharge
(Accuracy:1%)
: EN High Active with C
L
auto discharge
(Accuracy:1%)
: EN High Active without C
L
auto discharge
(Accuracy:2%)
: EN High Active with C
L
auto discharge
(Accuracy:2%)
: Sequential number showing VR1 and VR2 voltage combination
VR1 range: 0.8 ~ 5.0V , VR2 range : 0.8 ~ 5.0V (0.05V increments)
Refer to the table below
: SOT-26
: USP-6C
: Embossed tape, standard feed
: Embossed tape, reverse feed
②
VR2
③④
⑤
⑥
Output Voltage
Packages
Device Orientation
DESIGNATOR
③④
③④
VR1
01
02
03
04
05
06
07
08
09
10
1.80
1.20
1.80
1.50
2.85
1.80
3.00
2.80
1.20
1.10
VR2
2.80
2.90
1.80
2.70
2.85
3.30
3.00
1.80
1.20
1.30
③④
11
12
13
14
15
16
17
18
19
20
VR1
1.30
2.80
2.50
3.00
1.20
2.80
3.30
3.10
2.80
1.30
VR2
1.50
2.80
3.30
3.30
1.80
3.30
3.30
3.10
1.50
2.80
③④
21
22
23
24
25
26
27
28
29
30
VR1
1.50
1.80
1.85
1.85
2.60
1.50
2.00
3.30
3.30
2.10
VR2
2.80
3.00
2.80
3.30
2.80
1.50
3.00
1.80
1.75
4.10
2/29
*For other combinations, please ask Torex sales contacts.
XC6419
Series
■BLOCK
DIAGRAMS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
■ABSOLUTE
MAXIMUM RATINGS
Ta=25℃
PARAMETER
Input Voltage
Output Current
Output Voltage 1 / Output Voltage 2
EN1/EN2 Input Voltage
Power
Dissipation
USP-6C
SYMBOL
V
IN
I
OUT1
+I
OUT2
V
OUT1
/V
OUT2
V
EN1
/V
EN2
Pd
Topr
Tstg
SOT-26
Operating Temperature Range
Storage Temperature Range
RATINGS
- 0.3 ~ + 6.5
500
(*1)
V
SS
- 0.3 ~ V
IN
+ 0.3
V
SS
- 0.3 ~ + 6.5
120
(*2)
1000
（PCB
mounted）
250
- 40 ~ + 85
- 55 ~ + 125
UNITS
V
mA
V
V
mW
℃
℃
*1: Please use within the range of Pd > { (V
IN
-V
OUT1
)×I
OUT1
+ (V
IN
-V
OUT2
)×I
OUT2
}
*2: This power dissipation figure shown is PCB mounted and is for reference only. Please refer to page 28 for details.
3/29
XC6419
Series
■ELECTRICAL
CHARACTERISTICS
●
XC6419 Series
Regulator 1
PARAMETER
SYMBOL
CONDITIONS
V
OUT(T)
≧2.0V
(A, B Series),
V
EN1
=V
IN
, I
OUT
=10mA
V
OUT
≦1.95V(A,
B Series),
V
EN1
=V
IN
, I
OUT
=10mA
V
OUT(T)
＞1.5V（C,
D Series)
V
EN1
=V
IN
, I
OUT
=10mA
V
OUT
≦1.5V （C,
D Series)
V
EN1
=V
IN
, I
OUT
=10mA
V
EN1
=V
IN
, 0.1mA≦I
OUT
≦200mA
I
OUT
=200mA, V
EN1
=V
IN
V
IN
=V
EN1
=V
OUT(T)
+1.0V, I
OUT
=0½A
V
IN
=6.0V, V
EN1
=V
SS
V
OUT(T)
+0.5V≦V
IN
≦6.0V
：V
OUT(T)
≧1.0V
V
EN1
=V
IN
, I
OUT
=10mA
1.5V≦V
IN
≦6.0V
：V
OUT(T)
≦0.95V
V
EN1
=V
IN
, I
OUT
=10mA
V
EN1
=V
IN
, I
OUT
=30mA
-40℃≦Ta≦85℃
V
IN
=½V
OUT(T)
+1.0½V
DC
+0.5Vp-pAC
：V
OUT(T)
≦4.75V
V
EN1
=V
IN
, I
OUT
=30mA, f=1kHz
V
IN
=5.75VDC+0.5Vp-pAC
：V
OUT(T)
≧4.8V
V
EN1
=V
IN
, I
OUT
=30mA, f=1kHz
V
EN1
=V
IN
V
EN1
=V
IN
, Short V
OUT
to V
SS
level
MIN.
×0.99
(*3)
Ta=25℃
TYP.
MAX.
×1.01
(*3)
UNITS
CIRCUITS
-0.02
(*3)
+0.02
V
OUT(T)
(*4)
(*3)
Output Voltage
V
OUT(E)
(*2)
×0.98
(*3)
×1.02
(*3)
V
①
-0.03
(*3)
+0.03
(*3)
Output Current
Load Regulation
Dropout Voltage
(*5)
Supply Current
Stand-by Current
I
OUTMAX
ΔV
OUT
Vdif
I
SS
I
STBY
300
Refer to table E-11
Refer to table E-12
28
70
0.01
0.1
mA
mV
mV
μA
μA
①
①
①
②
②
Line Regulation
ΔV
OUT
ΔV
IN
・V
OUT
0.01
0.20
%/V
①
Input Voltage
Output Voltage
Temperature
Characteristics
V
IN
ΔV
OUT
ΔTa・V
OUT
1.5
±100
6.0
V
ppm/℃
①
①
Ripple Rejection Rate
PSRR
60
dB
③
Limit Current
Short Current
EN ”H” Level Voltage
EN ”L” Level Voltage
EN ”H” Level Current
EN ”L” Level Current
C
L
Discharge Resistor
(*8)
I
LIM
I
SHORT
V
ENH
V
ENL
I
ENH
I
ENL
R
DCHG
310
1.2
400
30
6.0
0.3
0.1
0.1
550
V
EN1
=V
IN
V
EN1
=V
SS
V
IN
=6.0V, V
OUT
=4.0V, V
EN1
= V
SS
-0.1
-0.1
mA
mA
V
V
μA
μA
Ω
①
①
①
①
①
①
①
NOTE:
*1: Unless otherwise stated, V
IN
=V
OUT (T)
+1.0V, V
EN2
=0V.
*2: V
OUT (E)
= Actual output voltage (refer to the voltage table)
(ie. The output voltage when
“V
OUT (T)
+1.0V” is provided at the V
IN
pin while maintaining a certain I
OUT
value.
*3: Characteristics of the actual V
OUT (E)
by nominal output voltage is shown in the voltage table.
*4: V
OUT (T)
is nominal output voltage
(*7)
(*6)
*5: Vdif = V
IN1
－V
OUT3
*6: V
OUT 3
is a voltage equal to 98% of the V
OUT (T)
when an amply stabilized input voltage is applied in V
OUT (T)
+1.0V.
*7: V
IN1
is the input voltage when V
OUT3
appears while input voltage is gradually decreased.
*8: For XC6419Bx/Dx series only.
XC6419Ax/Cx series discharge with only Rx1 and Rx2 resistors as shown in the BLOCK DIAGRAMS.
4/29
XC6419
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
●
XC6419 Series
Regulator 2
PARAMETER
SYMBOL
CONDITIONS
V
OUT(T)
≧2.0V
(A, B Series),
V
EN2
=V
IN
, I
OUT
=10mA
V
OUT
≦1.95V
(A, B Series),
V
EN2
=V
IN
, I
OUT
=10mA
V
OUT(T)
＞1.5V（C,
D Series)
V
EN2
=V
IN
, I
OUT
=10mA
V
OUT
≦1.5V （C,
D Series)
V
EN2
=V
IN
, I
OUT
=10mA
V
EN2
=V
IN
, 0.1mA≦I
OUT
≦50mA
I
OUT
=50mA, V
EN2
=V
IN
V
IN
=V
EN2
=V
OUT(T)
+1.0V, I
OUT
=0½A
V
IN
=6.0V, V
EN2
=V
SS
V
OUT(T)
+0.5V≦V
IN
≦6.0V
：V
OUT(T)
≧1.0V
V
EN2
=V
IN
, I
OUT
=10mA
1.5V≦V
IN
≦6.0V
：V
OUT(T)
≦0.95V
V
EN2
=V
IN
, I
OUT
=10mA
V
EN2
=V
IN
, I
OUT
=30mA
-40℃≦Ta≦85℃
V
IN
=½V
OUT(T)
+1.0½
V
DC
+0.5Vp-pAC
：V
OUT(T)
≦4.75V
V
EN2
=V
IN
, I
OUT
=30mA、f=1kHz
V
IN
=5.75V
DC
+0.5Vp-pAC
：V
OUT(T)
≧4.8V
V
EN2
=V
IN
, I
OUT
=30mA, f=1kHz
V
EN2
=V
IN
V
EN2
=V
IN
, Short V
OUT
to V
SS
level
MIN.
×0.99
(*3)
Ta=25℃
TYP.
MAX.
×1.01
(*3)
UNITS
CIRCUITS
-0.02
(*3)
+0.02
V
OUT(T)
(*4)
(*3)
Output Voltage
V
OUT(E)
(*2)
×0.98
(*3)
×1.02
(*3)
V
①
-0.03
(*3)
+0.03
(*3)
Output Current
Load Regulation
Dropout Voltage
(*5)
Supply Current
Stand-by Current
I
OUTMAX
ΔV
OUT
Vdif
I
SS
I
STBY
100
Refer to table E-21
Refer to table E-22
23
60
0.01
0.1
mA
mV
mV
μA
μA
①
①
①
②
②
Line Regulation
ΔV
OUT
ΔV
IN
・V
OUT
0.01
0.20
%/V
①
Input Voltage
Output Voltage
Temperature
Characteristics
V
IN
ΔV
OUT
ΔTa
・V
OUT
1.5
±100
6.0
V
ppm/℃
①
①
Ripple Rejection Rate
PSRR
60
dB
③
Limit Current
Short Current
EN ”H” Level Voltage
EN ”L” Level Voltage
EN ”H” Level Current
EN ”L” Level Current
C
L
Discharge Resistor
(*8)
I
LIM
I
SHORT
V
ENH
V
ENL
I
ENH
I
ENL
R
DCHG
110
1.2
150
15
6.0
0.3
0.1
0.1
550
V
EN2
=V
IN
V
EN2
=V
SS
V
IN
=6.0V, V
OUT
=4.0V, V
EN2
= V
SS
-0.1
-0.1
mA
mA
V
V
μA
μA
Ω
①
①
①
①
①
①
①
NOTE:
*1: Unless otherwise stated, V
IN
=V
OUT (T)
+1.0V, V
EN1
=0V.
*2: V
OUT (E)
is actual output voltage (refer to the voltage table)
(ie. The output voltage when
“V
OUT (T)
+1.0V” is provided at the V
IN
pin while maintaining a certain I
OUT
value.
*3: Characteristics of the actual V
OUT (E)
by nominal output voltage is shown in the voltage table
*4: V
OUT (T)
is nominal output voltage
(*7)
(*6)
*5: Vdif = V
IN1
－V
OUT3
*6: V
OUT3
is a voltage equal to 98% of the output voltage whenever an amply stabilized I
OUT
{V
OUT(T)
+1.0V} is input.
*7: V
IN1
is the input voltage when V
OUT3
appears while input voltage is gradually decreased.
*8: For XC6419 xB/xD series only.
XC6419 xA /xC series discharge with only Rx1 and Rx2 resistors as shown in the BLOCK DIAGRAMS.
5/29
PCB设计
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