XC6371A260PR [TOREX]
Switching Regulator/Controller, Voltage-mode, 0.1A, 57.5kHz Switching Freq-Max, CMOS;
| 型号： | XC6371A260PR |
| 厂家： | 
Torex Semiconductor |
| 描述： | Switching Regulator/Controller, Voltage-mode, 0.1A, 57.5kHz Switching Freq-Max, CMOS |
| 文件： | 总14页 (文件大小：227K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
04S_04XC6371 02.09.12 14:44 ページ 437
Series
PWM Controlled Step‐Up DC/DC Controllers/Converters
NCMOS Low Power Consumption
■Applications
GCellular phones, Pagers
NOperating Voltage
:0.9V~10.0V
:2.0V~7.0V
GPalmtops
NOutput Voltage Range
GCameras, Video recorders
GPortable products
NOutput Voltage Accuracy: 2.ꢀ5
NSelectable Oscillator Frequency
:ꢀ0kHz, 100kHz,
180kHz
4
■General Description
The XC6371 series are a group of PWM controlled step-up DC/DC
converters.
■Features
Operating (start-up) voltage range
: 0.9V~10V
On-chip proprietary phase compensation and soft start-up circuits ensure
excellent transient response and improved performance.
Output voltage can be selected from 2.0V to 7.0V in 0.1V increments
(accuracy: 2.ꢀ5%. Oscillator freꢁuency is also selectable from three
freꢁuencies; ꢀ0, 100, and 180kHz (accuracy: 1ꢀ5%.
Every built-in switching transistor type enables a step-up circuit to be
configured using only three external components; a coil, a diode, and a
capacitor.
Output voltage range : 2.0V~7.0V in 0.1V increments
Highly accurate
: Set-up voltage 2.ꢀ5
Oscillator frequency : ꢀ0kHz, 100kHz, 180khz ( 1ꢀ5%
selectable
Maximum output currents (Tr built-in)
: Typ.100mA @ VIN=3.0,
VOUT=ꢀ.0V .....Note(1%
Highly efficient (Tr built-in)
External transistor versions are available to accommodate high output
current applications.
: Typ.8ꢀ5 @ VIN=3.0,
VOUT=ꢀ.0V .....Note(1%
ꢀ-pin packages, which are provided with either a CE (chip enable%
function that reduces power consumption during shut-down mode, or a
VDD pin (separated power and voltage detect pins% are available.
SOT-89 small package.
Built-in switching transistor type and an external Tr type are
available.
Five-lead packaged units offer either Chip Enable or
independent VOUT pin option.
Phase compensation and soft start-up circuits built-in Small
package
: SOT-89 mini-power mold (3-pin, ꢀ-pin%
Note(1%: Performance depends on external components and
PCB layout.
■Typical Application Circuit
■Typical Performance
Characteristic
XC6371A301PR
SD
VOUT
L
�
L＝100μH（CR54），CL＝47μF（Tantalum）�
100�
VIN
CIN
2.7V
SOT-89�
(TOP VIEW)
80�
CL�
（Tantalum）�
60�
40�
20�
0
VIN=0.9V
1.8V
1
2
3
1.5V
1.2V
10
GND
0.1
1
100
1000
Output Voltage:IOUT（mA）�
437
04S_04XC6371 02.09.12 14:44 ページ 438
XC6371 Series
■Pin Configuration
5
4
1
2
3
1
2
3
SOT-89�
(TOP VIEW)
SOT-89-5�
(TOP VIEW)
■Pin Assignment
(XC6371A,XC6371B%
PIN NUMBER
4
PIN NAME
FUNCTION
XC6371A
XC6371B
1
2
3
1
2
–
V
SS
Ground
Output voltage monitor / IC internal power supply
Switch
VOUT
Lx
–
3
EXT
External switch transistor drive
(XC6371C,XC6371D)
PIN NUMBER
PIN NAME
FUNCTION
XC6371C
XC6371D
5
2
4
5
2
–
V
SS
Ground
Output voltage monitor / IC internal power supply
Switch
VOUT
Lx
EXT
CE
–
3
1
4
3
1
External switch transistor drive
Chip Enable
NC
No Connection
(XC6371E,XC6371F)
PIN NUMBER
PIN NAME
FUNCTION
XC6371E
XC6371F
5
2
4
5
2
–
V
SS
Ground
IC internal power supply
Switch
VDD
Lx
EXT
–
3
1
4
3
1
External switch transistor drive
Output voltage monitor
No Connection
VOUT
NC
438
04S_04XC6371 02.09.12 14:44 ページ 439
XC6371
Series
■Product Classification
GSelection Guide
OPERATION
SWITCHING
RELATED
ADDITIONAL
FUNCTION
PART TYPE
XC6371A
PACKAGE
SOT-89
FEATURES
MODE
•
•
Switching transistor incorporated standard type.
Low ripple and highly efficient from low current
to high current.
Built-in Transistor
"Lx"lead
PWM
------------
------------
•
•
External switching transistor standard type.
Adding external transistor can improve the
output capability up to several hundred mA.
External Transistor
"EXT"lead
XC6371B
XC6371C
XC6371D
XC6371E
XC6371F
PWM
PWM
PWM
PWM
PWM
SOT-89
SOT-89-5
SOT-89-5
SOT-89-5
SOT-89-5
•
•
Stand-by (CE)function added version to the
XC6371A.
Stand-by current: 0.5µA max.
Built-in Transistor
"Lx"lead
Chip Enable(CE)
Chip Enable(CE)
•
•
Stand-by (CE)function added version to the
XC6371B.
Stand-by current: 0.5µA max.
External Transistor
"EXT"lead
•
Individual power supply and set-up voltage
sensing leads are available.
Built-in Transistor
"Lx"lead
Separated
"VDD"and"VOUT"leads
4
•
Individual power supply and set-up voltage
sensing leads are available.
External Transistor
"EXT"lead
Separated
"VDD"and"VOUT"leads
GOrdering Information
XC6371qwerty
XC6371 Series
PWM Controlled
3-pin. Built-in switching transistor
3-pin. External switching transistor
A
B
C
Stand-by capability. Built-in switching transistor
Stand-by capability. External switching transistor
Separated VDD and VOUT. Built-in switching transistor
Separated VDD and VOUT. External switching transistor
Output Voltage
q
D
E
F
w
e
e.g.,VOUT=3.5V ➔ w=3,
OSC Frequency 50kHz
e=5
0
OSC Frequency 100kHz
OSC Frequency 180kHz
r
1
2
Package
q
q
=A
=C
~
~
B
F
➔
➔
SOT-89
t
y
P
SOT-89-5
R
L
Embossed tape: Standard Feed
Embossed tape: Reverse Feed
439
04S_04XC6371 02.09.12 14:44 ページ 440
XC6371 Series
■Packaging Information
GSOT-89
1.5±0.1
4.5±0.1
+0.15�
-0.2
1.6
+0.03�
-0.02
0.4
0.42±0.06
0.42±0.06
0.47±0.06
4
1.5±0.1 1.5±0.1
GSOT-89-5
+0.15�
-0.2
1.6
1.5±0.1
0.42±0.06
0.42±0.06
0.42±0.06
+0.03�
-0.02
0.4
0.42±0.06
0.42±0.06
0.47±0.06
1.5±0.1 1.5±0.1
4.5±0.1
440
04S_04XC6371 02.09.12 14:44 ページ 441
XC6371
Series
■Marking
2
4
3
w
q
r
e
1
SOT-89-5
(TOP VIEW)
SOT-89
(TOP VIEW)
q Represents the Product Classification
PRODUCT NAME
DESIGNATOR
XC6371A
XC6371B
XC6371C
XC6371D
XC6371E
XC6371F
A
B
A
B
S
X
4
w Represents the integer of the Output Voltage and Oscillator Frequency
OSCILLATOR FREQUENCY（kHz）�
INTEGER OF THE�
OUTPUT VOLTAGE
50
100
180
1
2
3
4
5
6
7
B
C
D
E
F
1
2
3
4
5
6
7
1
2
3
4
5
6
7
H
K
e Represents the decimal number of the Output Voltage and Oscillator Frequency
OSCILLATOR FREQUENCY（kHz）�
THE DECIMAL NUMBER OF�
OUTPUT VOLTAGE
50
100
180
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
H
K
L
M
r Denotes the production lot number�
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
441
04S_04XC6371 02.09.12 14:44 ページ 442
XC6371 Series
■Block Diagram
XC6371A～XC6371D
XC6371E and XC6371F
VDD
V
DD
OU
Lx
Lx
VLx limiter
Soft Start
Vref
VLx limiter
Soft Start
Vref
VDD
Buffer
Buffer
VOUT
PWM Control�
OSC 50/100/180KHz
Phase comp
V
VSS
PWM Control�
OSC 50/100/180KHz
Phase comp
VSS
+
－�
+
－�
EXT
EXT
Chip Enable
CE
Note:
Note:
Built-in tr.type units use the LX pin. External tr.type units use the EXT pin.
The CE pin is only used with the XC6371C and XC6371D.
The VOUT pin is used also for the VDD pin.
The VDD pin is only used with XC6371E and XC6371F.
Built-in tr.type units use the LX pin. External tr.type units use the EXT pin.
4
■Absolute Maximum Ratings
Ta=25°C
SYMBOL
RATINGS
UNITS
V
PARAMETER
OUT Input Voltage
Lx pin Voltage
Lx pin Current
EXT pinVoltage
EXT pin Current
VOUT
12
12
V
VLX
V
I
LX
400
mA
V
VEXT
VSS –0.3 ~ VOUT+0.3
I
EXT
50
mA
V
V
CE
12
500
12
CE Input Voltage
P
d
mW
V
Continuous Total Power Dissipation
VDD
V
DD Input Voltage
Topr
Tstg
–30
–40
~
+80
+125
°C
°C
Operating Ambient Temperature
Storage Temperature
~
■Electrical Characteristics
XC6371A501PR
V
OUT=5.0V,FOSC=100kH
Z
Ta=25°C
SYMBOL
MIN
TYP
MAX
UNITS
PARAMETER
Output Voltage
CONDITIONS
VOUT
4.875
10
5.000
5.125
V
V
V
Maximum Input Voltage
VIN
VST1
External Components Connected. IOUT=1mA.
Operation Start-up Voltage
0.90
0.80
No external components. Apply voltage to VOUT
.
Oscillation Start-up Voltage
Supply Current 1
V
ST2
1
V
Lx : 10kΩ pull-up to 5V.
Same as VST2.
Apply output voltage✕0.95 to VOUT.
IDD
80.2
133.8
16.5
µA
µA
Same as VST2.
Supply Current 2
I
DD2
8.2
1.4
Apply output voltage✕1.1 to VOUT
.
Lx Switch-On Resistance
Lx Leakage Current
Oscillator Frequency
Maximum Duty Ratio
R
SWON
Same as IDD 1. VLX=0.4V.
2.4
1.0
115
92
Ω
µA
kHz
%
I
LXL
No external components. VOUT=VLX=10V.
Same as IDD 1. Measuring of Lx waveform.
FOSC
85
80
100
87
MAXDTY
Same as IDD 1. Measuring of Lx waveform.
Same as IDD 1. Apply output voltage to Lx.
Voltage required to produce FOSC✕2
Lx Limit Voltage
V
LXLMT
0.7
1.3
V
Efficiency
%
EFFI
85
Slow-Start Time
T
SS
4.0
10.0
20.0
ms
Measuring conditions : Unless otherwise specified, VIN=VOUT ✕ 0.6, IOUT=50mA. See Typical Application Circuits, Fig.1.
442
04S_04XC6371 02.09.12 14:44 ページ 443
XC6371
Series
Ta=25°C
VOUT=5.0V,Fosc=100kHz
XC6371B501PR
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
4.875
10
TYP
MAX
UNITS
VOUT
5.000
5.125
V
V
Maximum Input Voltage
VIN
External Components Connected.IOUT=1mA.
No external components.
Operation Start-up Voltage
V
ST1
0.90
0.80
V
V
Oscillation Start-up Voltage
V
ST2
1
Apply voltage to VOUT
.
Same as VST2.
Apply output voltage✕0.95 to VOUT.
Supply Current 1
Supply Current 2
IDD
40.0
8.2
66.8
16.5
µA
µA
Same as VST2.
I
DD
2
Apply output voltage
✕
1.1 to VOUT
.
EXT"High" On Resistance
EXT"Low" On Resistance
Oscillator Frequency
Maximum Duty Ratio
Efficiency
R
EXTH
Same as IDD 1. VEXT=–0.4V.
Same as IDD 1. VEXT=0.4V.
37.5
30
62.5
50
Ω
Ω
R
EXTL
OSC
F
Same as IDD1. Measuring of EXT waveform.
85
80
100
87
115
92
kHZ
MAXDTY Same as IDD1. Measuring of EXT waveform.
EFFI
%
%
85
Slow-Start Time
T
SS
4.0
10.0
20.0
ms
4
Measuring conditions: Unless otherwise specified, VIN=VOUT
✕
0.6, IOUT=50mA. See Typical Application Circuits, Fig.2.
XC6371C501PR
VOUT=5.0V,FOSC=100kHz
Ta=25°C
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MIN
4.875
10
TYP
MAX
UNITS
VOUT
5.000
5.125
V
V
Maximum Input Voltage
VIN
Operation Start-up Voltage
V
ST1
0.90
0.80
V
V
External Components Connected.IOUT=1mA.
No external components. Apply voltage to VOUT
.
Oscillation Start-up Voltage
Supply Current 1
V
ST2
1
Lx : 10k pull-up to 5V.
Ω
Same as VST2.
IDD
80.2
133.8
16.5
µA
µA
Apply output voltage
✕
0.95 to VOUT
.
Same as VST2.
Supply Current 2
I
DD
2
8.2
1.4
Apply output voltage
✕
1.1 to VOUT
.
Lx Switch-On Resistance
Lx Leakage Current
Osicillator Frequency
Maximum Duty Ratio
Stand-by Current
RSWON
Same as IDD 1. VLX=0.4V.
2.4
1.0
115
92
Ω
µA
kHZ
ILXL
No external components. VOUT=VLx=10V.
Same as IDD 1. Measuring of Lx waveform.
Same as IDD 1. Measuring of Lx waveform.
Same as IDD 1.
FOSC
85
80
100
87
MAXDTY
%
µA
V
I
STB
CEH
CEL
CEH
CEL
0.5
CE"High"Voltage
V
Same as IDD 1. Existence of Lx Oscillation.
0.75
CE"Low"Voltage
V
Same as IDD 1. Disappearance of L
x
Oscillation.
0.20
0.25
V
µA
CE"High"Current
I
Same as IDD 1.VCE=VOUT✕0.95.
I
Same as IDD 1. VCE=0V.
CE"Low"Current
Lx Limit Voltage
–0.25
µA
Same as IDD 1. Apply output voltage to Lx.
Voltage required to produce FOSC✕2.
VLxLMT
EFFI
0.7
4.0
1.3
V
Efficiency
85
%
Slow-Start Time
T
SS
10.0
20.0
ms
Measuring conditions: Unless otherwise specified, connect CE to VOUT,VIN=VOUT✕0.6, IOUT=50mA. See Typical Application Circuits, Fig.3.
443
04S_04XC6371 02.09.12 14:44 ページ 444
XC6371 Series
XC6371D501PR
PARAMETER
V
OUT=5.0V,FOSC=100kHZ
Ta=25°C
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Output Voltage
V
OUT
4.875 5.000 5.125
V
V
V
Maximum Input Voltage
V
IN
10
Operation Start-up Voltage
V
V
ST1
External Components Connected. IOUT=1mA.
0.90
No external components.
Apply voltage to Vout.
ST2
1
0.80
V
Oscillation Start-up Voltage
Same as VST2.
Apply output voltage✕0.95 to VOUT.
IDD
Supply Current 1
Supply Current 2
40.0
8.2
66.8
16.5
µA
µA
Same as VST2.
I
DD
2
Apply output voltage
✕
1.1 to VOUT
.
EXT "High" On Resistance
EXT "Low" On Resistance
Oscillator Frequency
R
EXTH
37.5
30
62.5
50
Ω
Ω
Same as IDD 1. VEXT=–0.4V.
Same as IDD 1. VEXT=0.4V.
R
EXTL
OSC
F
85
80
100
87
115
92
kHz
%
Same as IDD 1. Measuring of EXT waveform.
Same as IDD 1. Measuring of EXT waveform.
Maximum Duty Ratio
MAXDTY
4
I
STB
CEH
CEL
CEH
CEL
0.5
µA
V
Stand-by Current
CE"High"Voltage
CE"Low"Voltage
Same as IDD 1.
V
Same as IDD 1. Existence of Lx Oscillation.
Same as IDD 1. Disappearance of Lx Oscillation.
Same as IDD 1.VCE=VOUT✕0.95.
Same as IDD 1.VCE=0V.
0.75
V
0.20
0.25
V
I
µA
µA
CE"High"Current
CE"Low"Current
Efficiency
I
–0.25
EFFI
85
%
Slow-Start Time
T
SS
4.0
10.0
20.0
ms
Measuring conditions: Unless otherwise specified, connect CE to VOUT,VIN=VOUT✕0.6, IOUT=50mA. See Typical Application Circuits,Fig.4.
Ta=25°C
XC6371E501PR
V
OUT=5.0V,FOSC=100kH
Z
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
SYMBOL
Output Voltage
V
OUT
4.875 5.000 5.125
V
V
V
10
Maximum Input Voltage
V
IN
Operation Start-up Voltage
V
ST1
0.90
External Components Connected. IOUT=1mA.
No external components.
0.80
V
Oscillation Start-up Voltage
Supply Current 1
V
ST2
1
Apply voltage to VOUT
.
Same as VST2.
Apply output voltage✕0.95 to VOUT.
IDD
80.2 133.8
µA
Same as VST2.
Supply Current 2
I
DD
2
8.2
1.4
16.5
µA
Apply output voltage
✕
1.1 to VOUT
.
Lx Switch-On Resistance
Lx Leakage Current
Same as IDD 1. VLX=0.4V.
RSWON
2.4
1.0
115
92
Ω
I
LXL
No external components. VOUT=VLX=10V.
µA
F
OSC
Osicillator Frequency
Maximum Duty Ratio
Same as IDD 1. Measuring of Lx waveform.
Same as IDD 1. Measuring of Lx waveform.
85
80
100
87
kHz
%
MAXDTY
Same as IDD 1.
Apply output voltage to Lx.
0.7
1.3
V
Lx Limit Voltage
VLxLMT
EFFI
Voltage required to produce FOSC✕2.
Efficiency
85
%
Slow-Start Time
TSS
4.0
10.0
20.0
ms
Measuring conditions: Unless otherwise specified, connect VDD to Vout,VIN=VOUT✕0.6, IOUT=50mA. SeeTypical Application Circuits,Fig.5.
Note:
When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V.
The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
444
04S_04XC6371 02.09.12 14:44 ページ 445
XC6371
Series
V
OUT=5.0V,FOSC=100kH
Z
XC6371F501PR
PARAMETER
Ta=25°C
UNITS
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
VOUT
Output Voltage
4.875
5.000
5.125
V
IN
Maximum Input Voltage
10
V
V
Operation Start-up Voltage
VST
1
External Components Connected. IOUT=1mA.
No external components.
0.90
0.80
Oscillation Start-up Voltage
Supply Current 1
V
ST
2
1
2
V
Appply voltage to VOUT
.
Same as VST2.
Apply output voltage✕0.95 to VOUT.
I
DD
DD
40.0
8.2
66.8
16.5
µA
µA
Same as VST2.
Supply Current 2
I
Apply output voltage
✕
1.1 to VOUT
.
EXT "High" On-Resistance
EXT "Low" On-Resistance
Oscillator Frequency
R
EXTH
EXTL
OSC
Same as IDD 1. VEXT=–0.4V.
Same as IDD 1. VEXT=0.4V.
37.5
30
62.5
50
Ω
Ω
R
F
Same as IDD 1.Measuring of EXT waveform.
85
85
100
87
115
92
kHz
%
Maximum Duty Ratio
MAXDTY Same as IDD 1.Measuring of EXT waveform.
EFFI
4
Efficiency
85
%
Slow-Start Time
T
SS
4.0
10.0
ms
20.0
Measuring conditions: Unless otherwise specified, connect VDD to VOUT,VIN=VOUT✕0.6, IOUT=50mA. See Typical Application Circuits, Fig.6.
Note
:
When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V.
The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
■Typical Application Circuits
SD
SD
VOUT
VOUT
L
L
CIN
VIN
VIN
CIN
SOT-89�
(TOP VIEW)�
�
Tr
SOT-89�
(TOP VIEW)
CL�
CL�
（Tantalum）�
（Tantalum）�
1
2
3
CB
RB
1
2
3
GND
GND
L
: 100µH (SUMIDA, CR-54)
L
: 47µH (SUMIDA, CR-54)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
CL : 16V 47µF (Tantalum capacitor; NICHCON, MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
CL : 16V 47µF (Tantalum capacitor; NICHCON MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
RB : 1kΩ, CB:3300pF (FOSC=100kHz)
Tr : 2SC3279, 2SD1628G
Fig.1 XC6371A Application
Fig.2 XC6371B Application
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04S_04XC6371 02.09.12 14:44 ページ 446
XC6371 Series
CE
CE
VOUT
SD
SD
VOUT
L
L
3
4
2
1
3
2
1
Tr
VIN
CIN
(TOP VIEW)�
SOT-89-5
CIN
VIN
(TOP VIEW)�
SOT-89-5
CL�
（Tantalum）�
CL�
（Tantalum）�
CB
RB
5
4
5
GND
GND
L
: 100µH (SUMIDA, CR-54)
L
: 47µH (SUMIDA, CR-54)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
CL : 16V 47µF (Tantalum capacitor, NICHICON, MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
CL : 16V 47µF (Tantalum capacitor, NICHICON, MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
RB : 1kΩ, CB : 3300pF (FOSC=100kHZ)
4
Tr : 2SC3279, 2SD1628G
Fig.3 XC6371C Application
Fig.4 XC6371D Application
SD
SD
VOUT
VOUT
L
L
3
4
2
1
3
4
2
1
Tr
VIN
(TOP VIEW)�
SOT-89-5
(TOP VIEW)�
SOT-89-5
VIN
CIN
VDD
CIN
VDD
CL�
（Tantalum）�
CL�
（Tantalum）�
CB
RB
5
5
GND
GND
L
: 100µH (SUMIDA, CR-54)
L
: 47µH (SUMIDA, CR-54)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
CL : 16V 47µF (Tantalum capacitor, NICHICON, MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
SD : MA2Q735 (Schottky diode; MATSUSHITA)
CL : 16V 47µF (Tantalum capacitor, NICHICON, MCE)
CIN : 16V220µF (Alminium Electrolytic Capacitor)
RB : 1kΩ,CB : 3300pF (FOSC=100kHZ)
Tr : 2SC3279, 2SD1628G
Fig.5 XC6371E Application
Fig.6 XC6371F Application
446
04S_04XC6371 02.09.12 14:44 ページ 447
XC6371
Series
■Typical Performance Characteristics
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT
XC6371A501PR
XC6371A301PR
�
�
L＝100μH（CR54），CL＝47μF（Tantalum）�
L＝100μH（CR54），CL＝47μF（Tantalum）�
5.2�
5.1�
5.0�
4.9�
4.8
3.10�
3.05�
3.00�
2.95�
2.90
1.2V
1.5V
2.0V
3.0V
1.5V
1.2V
VIN=1.0V
1.8V
VIN=0.9V
2.7V
4.0V
0.1
1
10
100
1000
0.1
1
10
100
1000
4
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
(2) EFFICIENCY vs. OUTPUT CURRENT
XC6371A501PR
XC6371A301PR
�
�
L＝100μH（CR54），CL＝47μF（Tantalum）�
L＝100μH（CR54），CL＝47μF（Tantalum）�
100�
80�
60�
40�
20�
0
100�
80�
60�
40�
20�
0
4.0V
2.7V
3.0V
VIN=0.9V
VIN=0.9V
2.0V
1.8 V
1.5V
1.2V
1.5V
1.2V
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current:IOUT（mA）�
Output Current:IOUT（mA）�
(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT
XC6371A501PR
XC6371A301PR
L＝100μH（CＲ54），CL＝47μF（Tantalum）�
L＝100μH（CR54），CL＝47μF（Tantalum）�
100
80
60
40
20
0
100
80
60
40
20
0
3.0V
�
�
2.0V
1.8V
1.5V
�
1.5V
1.2V
VIN=0.9V
1.2V
2.7V
VIN=0.9V
1
4.0V
0.1
10
100
1000
0.1
1
10
100
1000
Output Current:IOUT (mA)
Output Current:IOUT (mA)
447
04S_04XC6371 02.09.12 14:44 ページ 448
XC6371 Series
(4)NO LOAD, INPUT CURRENT vs. INPUT VOLTAGE
XC6371A301PR
XC6371A501PR
L＝100μH（CＲ54），CL＝47μF（Tantalum）�
L＝100μH（CR54），CL＝47μF（Tantalum）�
500
400
300
200
100
0
1000
800
600
400
200
0
0
1
2
3
4
5
0
1
2
3
Input Voltage:VIN (V)
Input Voltage:VIN (V)
4
(5) OPERATING START VOLTAGE/RETAIN
VOLTAGE vs. OUTPUT CURRENT
(6) LOAD TRANSIENT RESPONSE
XC6371A501
XC6371A501
I
OUT=1mA-30mA�
IN=3V�
L=100μH（CR54）,C=47μF (Tantalum)
V
L=100μH（CR54）,C=47μF (Tantalum)
7.0
6.0
5.0
4.0
3.0
240
210
180
150
1.6
1.4
1.2
1.0
Output Voltage
VST
0.8
120
90
VHLD
0.6
0.4
0.2
0.0
60
Output Current
30
0
0
10
20
30
Output Current:IOUT (mA)
Time(20msec/div)
448
04S_04XC6371 02.09.12 14:44 ページ 449
XC6371
Series
(7) OUTPUT VOLTAGE vs. OUTPUT CURRENT
XC6371B301（3V,100kHz）�
XC6371B501（5V,100kHz）�
L=47
μ
H（CR105）, RB=500Ω, CB=0.01
μ
F
L=47
μ
H（CR105）, RB=500Ω, CB=0.01
μF
3.2
3.1
3.0
2.9
5.2
5.1
5.0
4.9
VIN=3.0V
VIN=2.4V
2.5V
400
2.0V
1.5V
0.9V
1.8V
1.5V
1.2V
2.8
2.7
4.8
4.7
0
100
200
300
400
500
600
0
100
200
300
500
600
Output Current:IOUT (mA)
Output Current:IOUT (mA)
4
(8) EFFICIENCY vs. OUTPUT CURRENT
XC6371B301（3V,100kHz）�
XC6371B501（5V,100kHz）�
L=47
μ
H（CR105）, RB=500Ω, CB=0.01
μF
L=47
μ
H（CR105）, RB=500Ω, CB=0.01μF
100
80
100
80
VIN=3.0V
VIN=2.4V
1.8V
60
60
2.5V
2.0V
1.5V
1.2V
1.5V
40
20
0
40
20
0
0.9V
0
100 200 300 400 500 600
0
100 200 300 400 500 600
Output Current:IOUT (mA)
Output Current:IOUT (mA)
(9) RIPPLE VOLTAGE vs. OUTPUT CURRENT
XC6371B301（3V,100kHz）�
XC6371B501（5V,100kHz）�
L=47
μ
H（CR105）, R
B=500Ω, C
B=0.01
μF
L=47
μ
H（CR105）, RB=500Ω, CB=0.01μF
200
150
100
200
150
100
VIN=3.0V
2.5V
1.8V
2.0V
0.9V
1.5V
100
VIN=2.4V
500
50
0
50
0
1.5V
300 400
0
100
200
600
0
200
300 400
500
600
Output Current:IOUT (mA)
<External components>
CIN=100µF (Electrolytic), CL=47µF (Tantalum) ✕ 2, SD:MA735, Tr:2SD1628G
Output Current:IOUT (mA)
449
04S_04XC6371 02.09.12 14:44 ページ 450
XC6371 Series
(10) LOAD TRANSIENT RESPONSE
IOUT=1mA-30mA�
VIN=2.0V�
XC6371B301�
（3V,100kHz）�
L=47μH（CR54）,RB=1kΩ,�
CB=3300pF
4.0
240
180
3.5
Output Voltage
3.0
120
60
2.5
Output Current
4
2.0
0
Time (20msec/div)
IOUT=1mA-30mA�
VIN=3.0V�
XC6371B501�
（5V,100kHz）�
L=47μH（CR54）,RB=1kΩ,�
CB=3300pF
240
180
6.0
5.5
Output Voltage
120
60
5.0
4.5
Output Current
4.0
0
Time (20msec/div)
(External Components)
CIN=47µF (Tantalum)
CL=47µF (Tantalum) ✕ 2
SD:MA735
Tr :2SD1628G
450
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