XC62EP5602ML [TOREX]
Regulator;
| 型号： | XC62EP5602ML |
| 厂家： | 
Torex Semiconductor |
| 描述： | Regulator |
| 文件： | 总11页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
03S_09XC62E 02.9.12 3:07 PM ページ 347
Series
Boosting Voltage Regulators
ꢁCMOS Low Power Consumption
ꢁSmall Input-Output Voltage Differential
: 0.1V @ 100mA
■Applications
ꢀPortable Cameras and Video Recorders
ꢀBattery Powered Equipment
ꢀPalmtops
ꢁMaximum Output Current : 1000mA
ꢀReference Voltage Sources
3
ꢁOutput Voltage Range
: 2V~6V
ꢁOutput Voltage Accuracy : 2ꢀ
■General Description
■Features
The XC62E series are a group of positive output voltage regulators that
can supply up to 1A of output current using an external transistor. Low
power and high accuracy are achieved through CMOS process and laser
trimming technologies.
Ultra Small Input-Output Voltage Differential
: 100mA of output current is
available with a differential of 0.1V.
(Performance depends on the
The series consists of a high precision voltage reference, an error
correction circuit and a short-circuit protected output driver.
In stand-by mode, supply current can be dramatically cut. Since the
input-output voltage differential is small, loss control efficiency is good.
The XC62E is particularly suited for use with battery operated portable
products, and products where supply current regulation is required.
The series comes in an ultra small SOT-25 package.
external transistor characteristics.)
Maximum Output Current : 1000mA
Output Voltage Range
Highly Accurate
: 2V ~ 6V in 0.1V increments
: Set-up voltage 2ꢀ
Low Power Consumption : Typ.50µA (VOUT=5.0V)
: Typ.0.2µA (Stand-by)
Output Voltage Temperature Characteristics
: Typ. 100ppmꢁ/C
In connection with the CE function, apart from the negative logic
XC62EP series, a positive logic XC62ER series (custom) is also
available.
Input Stability
: Typ.0.1ꢀꢁV
Ultra Small Packages
: SOT-25 mini-mold
■Typical Application Circuit
■Typical Performance
Characteristic
PNP Tr
XC62EP3302（3.3V）�
�
CL＝10µF（tantalum）
RBE
1.0
RB
0.8
EXT
VIN
RＬ�
CL�
（Tantalum）�
CIN�
（Tantalum）�
VIN
CE
VOUT
�
0.6
Topr＝25℃�
80℃�
0.4
Vss
0.2
－30℃�
0.0
0
200
400
600
800
1000
Output Current:IOUT（mA）�
347
03S_09XC62E 02.9.12 3:07 PM ページ 348
XC62E Series
■Pin Configuration
■Pin Assignment
FUNCTION
Ground
PIN NUMBER
PIN NAME
CE / CE
5
EXT
4
1
2
3
4
5
V
SS
IN
OUT
V
Supply voltage input
Regulated voltage output
Base current control
Chip enable
V
EXT
1
2
3
CE/CE
VSS VIN VOUT
SOT-25�
（TOP VIEW）�
■Function
SERIES
3
CE
OUTPUT VOLTAGE
H
L
ON
OFF
OFF
XC62ER
H
XC62EP
L
ON
H=High Level
L=Low Level
■Product Classification
ꢀOrdering Information
X C 6 2 E X X X X X X X
↑�↑�↑�↑�↑�↑�
a
b
c d e f
DESIGNATOR
a
DESCRIPTION
DESIGNATOR
e
DESCRIPTION
CE pin Logic:
R=Positive
P=Negative
Package Type
M=SOT-25
Output Voltage
b
c
d
30
50
=
=
3.0V
5.0V
Device Orientation
Temperature Coefficients:
0= 100ppm (typical)
R=Embossed Tape
(Standard Feed)
L=Embossed Tape
(Reverse Feed)
f
Output Voltage Accuracy:
1= 1.0%(Semi-custom)
2= 2.0%
348
03S_09XC62E 02.9.12 3:07 PM ページ 349
XC62E
Series
■Packaging Information
ꢀSOT-25
+0.1�
-0.05
0.15
+0.1�
-0.05
0.4
0～0.1
3
（0.95）�
1.9±0.2
1.1±0.1
2.9±0.2
■Marking
�
�
q Not Used
1 2 3 4
w Represents the integer of the Output Voltage
�
�
�
R TYPE POSITIVE
VOLTAGE LOGIC
P TYPE NEGATIVE
VOLTAGE LOGIC
SYMBOL
VOLTAGE(V)
VOLTAGE(V)
SYMBOL
SOT-25�
_
（TOP VIEW）�
2
_
3
_
4
_
5
_
6
2.e
3.e
4.e
5.e
6.e
2
3
4
5
6
2.
3.
4.
5.
6.
e
e
e
e
e
r Based on internal standards
e Represents the decimal number of the Output Voltage
R TYPE POSITIVE
VOLTAGE LOGIC
P TYPE NEGATIVE
VOLTAGE LOGIC
SYMBOL
VOLTAGE(V)
VOLTAGE(V)
SYMBOL
_
0
_
w
w
w
w
w
w
w
w
w
w
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
0
1
2
3
4
5
6
7
8
9
w
w
w
w
w
w
w
w
w
w
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
1
_
2
_
3
_
4
_
5
_
6
_
7
_
8
_
9
349
03S_09XC62E 02.9.12 3:07 PM ページ 350
XC62E Series
■Block Diagram
VDD
VOUT
EXT
+
Current�
Limit
-
CE
Voltage�
Reference
VSS
3
■Absolute Maximum Ratings
Ta=25°C
PARAMETER
SYMBOL
RATINGS
UNITS
V
IN Input Voltage
V
IN
12
SS-0.3~VIN+0.3
SS-0.3~VIN+0.3
12
V
V
V
OUT Output Voltage
V
OUT
V
V
CE/CE Input Voltage
EXT Output Voltage
VCE
V
VEXT
V
EXT Output Current
I
EXT
50
mA
mW
°C
°C
Continuous Total Power Dissipation
Operating Ambient Temperature
Storage Temperature
Pd
150
Topr
Tstg
-30~+80
-40~+125
350
03S_09XC62E 02.9.12 3:07 PM ページ 351
XC62E
Series
■Electrical Characteristics
XC62EP3002 V
OUT(T)=3.0V (Note1)
Ta=25°C
PARAMETER
SYMBOL
CONDITIONS
OUT=50mA
MIN
TYP
MAX
UNITS
I
Output Voltage
V
OUT(E) (Note2)
2.940
3.000
3.060
V
V
V
V
IN=4.0V
IN=4.0V
IN=4.0V
Maximum Output Current*
Load Stability*
IOUT max.
1000
mA
mV
∆VOUT
-60
60
1mA
≤
I
OUT
≤ 100mA
Input-OutputVoltage
Differential (Note3)
I
OUT=100mA
Vdif
100
50
mV
Supply Current1
Supply Current2
I
SS1
80
µA
µA
V
IN=4.0V, VCE=VSS
IN=8.0V,VCE=VIN
OUT=50mA
3
ISS2
V
0.6
I
∆VOUT
∆VIN OUT
Input Stability*
%/V
0.3
8
0.1
4.0V 8.0V
≤ VIN ≤
•
V
V
IN
Input Voltage
V
Output Voltage
Temperature Characteristics*
∆VOUT
∆Topr OUT
EXT
I
OUT=10mA
100
ppm/°C
–30°C ≤ Topr
≤
80°C
• V
EXT Output Voltage
V
8
V
µA
V
ILEAK
EXT Leak Current
0.5
CE "High" Level Voltage
V
CEH
CEL
CEH
CEL
1.5
V
CE "Low" Level Voltage
0.25
V
µA
µA
CE "High" Level Current
CE "Low" Level Current
I
VCE=VIN
0.1
0
I
VCE=VSS
–0.2
–0.05
The characteristics for the XC62ER series are the same as above except for the CE operating logic which is the opposite.
Note:
1. VOUT(T)=Specified Output Voltage .
2. VOUT(E)=Effective Output Voltage (i.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT
value).
3. Vdif= {VIN1 (Note5)-VOUT1 (Note4)
}
4. VOUT1= A voltage equal to 98% of the Output Voltage whenever an amply stabilised IOUT {VOUT(T)+1.0V} is input.
5. VIN1= The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased.
6. The characteristics for those parameters marked with an asterisk* are liable to vary depending on which transistor is used.
Please use a transistor with a low saturation voltage level and hFE equal to 100 or more.
7. The maximum output current value is not a value representing continuous output due to the limitations of the 2AS1213 transistor's power
dissipation.
351
03S_09XC62E 02.9.12 3:07 PM ページ 352
XC62E Series
XC62EP4002 V
OUT(T)=4.0V (Note1)
Ta=25°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
4.000
1000
MAX
UNITS
I
OUT=50mA
Output Voltage
V
OUT(E) (Note2)
3.920
4.080
V
V
V
V
IN=5.0V
Maximum Output Current*
Load Stability*
IOUT max.
mA
IN=5.0V
IN=5.0V
-60
60
mV
mV
∆VOUT
1mA
≤
I
OUT
≤ 100mA
Input-Output Voltage
Differential (Note3)
IOUT=100mA
Vdif
100
50
Supply Current1
Supply Current2
I
SS1
80
µA
µA
V
IN=5.0V, VCE=VSS
IN=8.0V,VCE=VIN
OUT=50mA
I
SS
∆VOUT
∆VIN OUT
2
V
0.6
I
Input Stability*
%/V
V
0.3
8
0.1
5.0V 8.0V
≤ VIN ≤
•
V
V
IN
Input Voltage
3
Output Voltage
Temperature Characteristics*
∆VOUT
∆Topr OUT
I
OUT=10mA
100
ppm/°C
–30°C ≤ Topr
≤
80°C
• V
EXT Output Voltage
V
EXT
LEAK
CEH
CEL
CEH
CEL
8
V
µA
V
I
EXT Leak Current
0.5
CE "High" Level Voltage
V
1.5
V
CE "Low" Level Voltage
0.25
V
µA
µA
CE "High" Level Current
CE "Low" Level Current
I
V
CE=VIN
0.1
0
I
VCE=VSS
–0.2
–0.05
XC62EP5002 V
OUT(T)=5.0V (Note1)
Ta=25°C
PARAMETER
SYMBOL
CONDITIONS
OUT=50mA
MIN
TYP
MAX
UNITS
I
Output Voltage
V
OUT(E) (Note2)
4.900
5.000
5.100
V
V
V
V
IN=6.0V
IN=6.0V
IN=6.0V
Maximum Output Current*
Load Stability*
IOUT max.
1000
mA
mV
∆VOUT
-60
60
1mA
≤
I
OUT
≤
100mA
Input-Output Voltage
Differential (Note3)
Vdif
I
OUT=100mA
100
50
mV
Supply Current1
Supply Current2
I
SS1
80
µA
µA
V
IN=6.0V, VCE=VSS
IN=8.0V,VCE=VIN
OUT=50mA
I
SS
∆VOUT
∆VIN OUT
2
V
0.6
I
Input Stability*
%/V
V
0.3
8
0.1
6.0V 8.0V
≤ VIN ≤
•
V
V
IN
Input Voltage
Output Voltage
Temperature Characteristics*
∆VOUT
∆Topr OUT
I
OUT=10mA
100
ppm/°C
• V
–30°C ≤ Topr
≤
80°C
EXT Output Voltage
V
EXT
LEAK
CEH
CEL
CEH
CEL
8
V
µA
V
I
EXT Leak Current
0.5
CE "High" Level Voltage
V
1.5
V
CE "Low" Level Voltage
0.25
V
µA
µA
CE "High" Level Current
CE "Low" Level Current
I
V
CE=VIN
0.1
0
I
VCE=VSS
–0.2
–0.05
The characteristics for the XC62ER series are the same as above except for the CE operating logic which is the opposite.
Note:
1. VOUT(T)=Specified Output Voltage .
2. VOUT(E)=Effective Output Voltage (i.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value).
3. Vdif= {VIN1 (Note5)-VOUT1 (Note4)
}
4. VOUT1= A voltage equal to 98% of the Output Voltage whenever an amply stabilised IOUT {VOUT(T)+1.0V} is input.
5. VIN1= The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased.
6. The characteristics for those parameters marked with an asterisk* are liable to vary depending on which transistor is used.
Please use a transistor with a low saturation voltage level and hFE equal to 100 or more.
7. The maximum output current value is not a value representing continuous output due to the limitations of the 2AS1213 transistor's power dissipation.
352
03S_09XC62E 02.9.12 3:07 PM ページ 353
XC62E
Series
■Typical Application Circuit
ꢀStandard Circuit
PNP Tr
RBE
RB
EXT
VIN
RＬ�
CL�
（Tantalum）�
CIN�
（Tantalum）�
VIN
CE
VOUT
Peripherals :�
PNP Tr : 2SA1213�
Vss
RBE
RB
: 20kΩ～47kΩ
: Please refer to Note 2 on the following page.�
: 10µF(Tantalum)�
3
CIN
CL
: 47µF(Tantalum) 10µF minimum
■Operational Explanation
ꢀFunctional Description
Output voltage (VOUT) can be fixed by revising the external transistor's base current. This can be done by comparing the detected voltage level
and the set voltage power supply level.
With the XC62EP (CE negative voltage), if a voltage above the CE pin's "H" level is applied, the IC will enter stand-by mode where the base and
differential amplifier's currents are regulated.
■Directions for use
ꢀSuggestions for External Components
1. PNP Transistor
The selection of a transistor should take into account output current, input voltage and power dissipation for each specific application. It is
recommended that a transistor that has a low output saturated voltage (VCE) and high hFE characteristics be used.
2. RB Resistor
Although the IC unit is protected by a base current remitter circuit, it is recommended that a resistor (RB) be connected between the
transistor's base and the IC's EXT pin to protect the transistor.
Required output current can be calculated using the following equation although characteristic variations and conditions of use should be
carefully checked before use. The following equation also indicates the conditions needed to obtain IOUT (max.) at VIN (min.). However, the
larger the input current, the larger the output current (IOUT) that can be obtained.
VIN(min)-1.2(V)
RB
0.7(V)
RBE
IOUT(max)
hFE
3. RBE Resistor, CL Capacitor
To prevent oscillation due to output load variation, use of a phase compensation capacitor CL is recommended. Please use a Tantalum
capacitor of at least 10µF. Please also use an RBE resistor of less than 47kΩ.
An RBE resistor of between 20kΩ and 47kΩ is recommended for less power consumption.
4. Input Impedance
In order to control oscillation brought about as a result of impedance at the power supply line, connect a capacitor of 10µF or more (Tantalum)
between the external transistor's emitter and the ground pin.
ꢀSpecial Note
1. Protection Circuit
The built-in protect circuit is to protect the IC only. Therefore to prevent output shorts and overshoot current through the transistor, use of a
resistor RB or an overshoot current protection circuit is recommended.
Care should also be taken with the transistor's power dissipation.
353
03S_09XC62E 02.9.12 3:07 PM ページ 354
XC62E Series
■Typical Performance Characteristics
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT
XC62EP5002（5V）ꢀꢀꢀ�
XC62EP4002（4V）ꢀꢀꢀ�
XC62EP3302（3.3V）ꢀꢀ�
Topr＝25℃�
VIN＝6V , CL＝10µF（tantalum）�
Topr＝25℃�
Topr＝25℃�
VIN＝4.3V , CL＝10µF（tantalum）�
VIN＝5V , CL＝10µF（tantalum）�
5.1
5.0
4.9
4.8
4.7
4.1
4.0
3.9
3.8
3.7
3.4
3.3
3.2
3.1
3.0
3
0
100
200
300
400
500
0
100
200
300
400
500
�
0
100
200
300
400
500
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
(2) OUTPUT VOLTAGE vs. INPUT VOLTAGE
XC62EP5002（5V）ꢀꢀ�
XC62EP5002（5V）ꢀꢀ�
�
CL＝10µF（tantalum）, Topr＝25℃�
CL＝10µF（tantalum）, Topr＝25℃�
5.2
5.0
4.8
4.6
4.4
4.2
5.10
5.05
5.00
4.95
4.90
4.85
IOUT＝1mA
I
OUT＝1mA
500mA
500mA
100mA
�
100mA
�
4.5
5
5.5
�
5
6
7
8
Input Voltage:VIN（V）�
Input Voltage:VIN（V）�
XC62EP4002（4V）ꢀꢀ�
XC62EP4002（4V）ꢀꢀ�
ꢀ�
CL＝10µF（tantalum）, Topr＝25℃�
CL＝10µF（tantalum）, Topr＝25℃�
4.2
4.0
3.8
3.6
3.4
3.2
4.10
4.05
4.00
3.95
3.90
3.85
I
OUT＝1mA
�
�
500mA
I
OUT＝1mA
100mA，5�00mA
�
100mA
�
3.5
4
4.5
�
4
5
6
7
Input Voltage:VIN（V）�
Input Voltage:VIN（V）�
XC62EP3302（3.3V）ꢀꢀ�
XC62EP3302（3.3V）ꢀꢀ�
�
CL＝10µF（tantalum）, Topr＝25℃�
CL＝10µF（tantalum）, Topr＝25℃�
3.5
3.3
3.1
2.9
2.7
2.5
3.40
3.35
3.30
3.25
3.20
3.15
I
OUT＝1mA
100mA
IOUT＝1mA，�
�
�
500mA
500mA
100mA
�
�
2.8
3.3
3.8
3
4
5
6
Input Voltage:VIN（V）�
Input Voltage:VIN（V）�
354
03S_09XC62E 02.9.12 3:07 PM ページ 355
XC62E
Series
(3) INPUT/OUTPUT VOLTAGE DIFFERENTIAL vs. OUTPUT CURRENT
XC62EP5002（5V）�
XC62EP4002（4V）�
XC62EP3302（3.3V）�
�
�
�
CL＝10µF（tantalum）�
CL＝10µF（tantalum）�
CL＝10µF（tantalum）
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
�
�
�
Topr＝25℃�
Topr＝25℃�
Topr＝25℃�
80℃�
80℃�
80℃�
�
－30℃�
－30℃�
－30℃�
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
3
(4) SUPPLY CURRENT vs. INPUT VOLTAGE
XC62EP5002（5V）�
XC62EP4002（4V）�
XC62EP3302（3.3V）�
�
�
�
�
�
�
50
40
30
20
10
0
50
40
30
20
10
0
50
40
30
20
10
0
Topr＝25℃，80℃�
－30℃�
�
�
�
Topr＝25℃，80℃�
Topr＝25℃，80℃�
－30℃�
－30℃�
�
�
�
5
6
7
8
4
5
6
7
3
4
5
6
Input Voltage:VIN（V）�
Input Voltage:VIN（V）�
Input Voltage:VIN（V）�
(5) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE
XC62EP5002（5V）�
XC62EP4002（4V）�
XC62EP3302（3.3V）�
VIN＝4.3V�
VIN＝5V�
VIN＝6V�
IOUT＝100mA , CL＝10µF（tantalum）�
IOUT＝100mA , CL＝10µF（tantalum）�
IOUT＝100mA , CL＝10µF（tantalum）
5.10
5.05
5.00
4.95
4.90
4.10
4.05
4.00
3.95
3.90
3.40
3.35
3.30
3.25
3.20
�
�
�
�
�
�
-40 -20
0
20
40
60
80
-40 -20
0
20
40
60
80
-40 -20
0
20
40
60
80
Ambient Temp.:Top（r ℃）�
Ambient Temp.:Top（r ℃）�
Ambient Temp.:Top（r ℃）�
(6) SUPPLY CURRENT vs. AMBIENT TEMPERATURE
XC62EP5002（5V）�
XC62EP4002（4V）�
XC62EP3302（3.3V）�
�
�
�
VIN＝6V
VIN＝5V
VIN＝4.3V
50
40
30
20
10
0
50
40
30
20
10
0
50
40
30
20
10
0
�
�
�
�
�
�
-40 -20
0
20
40
60
80
-40 -20
0
20
40
60
80
-40 -20
0
20
40
60
80
Ambient Temp.:Top（r ℃）�
Ambient Temp.:Top（r ℃）�
Ambient Temp.:Top（r ℃）�
355
03S_09XC62E 02.9.12 3:07 PM ページ 356
XC62E Series
(7) INPUT TRANSIENT RESPONSE
XC62EP5002（5V）ꢀꢀꢀ�
�
XC62EP5002（5V）ꢀꢀꢀ�
�
�
IOUT＝100mA , CL＝10µF（tantalum）�
IOUT＝10mA , CL＝10µF（tantalum）�
8
7
6
5
4
3
5.4
8
7
6
5
4
3
5.4
Input Voltage
Input Voltage
5.3
5.2
5.1
5.0
4.9
5.3
5.2
5.1
5.0
4.9
�
�
Output Voltage
�
Output Voltage
�
3
Time（0.4msec/div）�
Time（0.4msec/div）�
XC62EP4002（4V）ꢀꢀꢀ�
XC62EP4002（4V）ꢀꢀꢀ�
�
�
IOUT＝10mA , CL＝10µF（tantalum）�
IOUT＝100mA , CL＝10µF（tantalum）�
7
6
5
4
3
2
4.4
7
6
5
4
3
2
4.4
Input Voltage
Input Voltage
4.3
4.2
4.1
4.0
3.9
4.3
4.2
4.1
4.0
3.9
�
�
Output Voltage
�
Output Voltage
�
Time（0.4msec/div）�
Time（0.4msec/div）�
XC62EP3302（3.3V）ꢀꢀꢀ�
XC62EP3302（3.3V）ꢀꢀꢀ�
�
�
IOUT＝10mA , CL＝10µF（tantalum）�
IOUT＝100mA , CL＝10µF（tantalum）�
6
5
4
3
2
1
3.7
6
5
4
3
2
1
3.7
3.6
3.5
3.4
3.3
3.2
3.6
3.5
3.4
3.3
3.2
Input Voltage
Input Voltage
�
�
Output Voltage
�
Output Voltage
�
Time（0.4msec/div）�
Time（0.4msec/div）�
356
03S_09XC62E 02.9.12 3:07 PM ページ 357
XC62E
Series
(8) LOAD TRANSIENT RESPONSE
XC62EP5002（5V）ꢀꢀꢀ�
XC62EP4002（4V）ꢀꢀꢀ�
�
�
V
IN＝6V , C
L＝10µF(tantalum)
VIN＝5V , CL＝10µF(tantalum)
5.10
5.05
5.00
4.95
4.90
4.85
1000
4.10
4.05
4.00
3.95
3.90
3.85
1000
Output Voltage
800
600
400
200
0
800
600
400
200
0
�
�
Output Voltage
300mA
1mA
300mA
1mA
Output Current
�
Output Current
�
Time（10msec/div）�
Time（10msec/div）�
3
XC62EP3302（3.3V）ꢀꢀꢀ�
�
V
IN＝4.3V , CL＝10µF(tantalum)
3.40
3.35
3.30
3.25
3.20
3.15
1000
800
600
400
200
0
Output Voltage
�
300mA
1mA
Output Current
�
Time（10msec/div）�
(9) RIPPLE REJECTION RATE
XC62EP5002（5V）ꢀꢀꢀ�
XC62EP4002（4V）ꢀꢀꢀ�
V
IN＝6VDC+0.5Vp
－pAC
�
V
IN＝5VDC+0.5Vp
－pAC
�
I
OUT＝200mA , C
L＝10µF(tantalum)
I
OUT＝200mA , CL＝10µF(tantalum)
60
50
40
30
20
10
0
60
50
40
30
20
10
0
�
�
�
�
0.01
0.1
1
10
0.01
0.1
1
10
Ripple Frequency:（f kHz）�
Ripple Frequency:（f kHz）�
XC62EP3302（3.3V）ꢀꢀꢀ�
V
IN＝4.3VDC+0.5Vp
－pAC�
I
OUT＝200mA , C
L＝10µF(tantalum)
60
50
40
30
20
10
0
�
�
0.01
0.1
1
10
Ripple Frequency:（f kHz）�
357
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