XC6385E531ML [TOREX]
Switching Regulator/Controller;
| 型号： | XC6385E531ML |
| 厂家： | 
Torex Semiconductor |
| 描述： | Switching Regulator/Controller |
| 文件： | 总7页 (文件大小：174K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
04S_11XC6385 02.09.12 14:59 ページ 525
Series
PFM (Frequency)Controlled, Step-Up DC/DC Converters
NPager Use
: Low Noise
: 75%
■Applications
GPagers
NDuty Ratio
GPalmtops
NCMOS Structure
: Small Supply
Current
GCameras, Video cameras
GVarious portable products
NOperating Voltage Range: 0.9~10.0V
NOutput Voltage Range : 2.0~7.0V
4
NOutput Voltage Accuracy: 2.5%
■General Description
The XC6385 series are a group of PFM (frequency) controlled step-up
DC/DC converters.
■Features
Low noise
Operating voltage range : 0.9V~10V
The XC6385 series employs CMOS process and laser trimming
technologies to attain low power and high accuracy.
Output voltage range
: 2.0V~7.0V (programmable in 0.1V
steps)
A common problem among pagers is one of noise, but with the XC6385,
high frequency noise that occurs during switching is reduced.
Output voltage is selectable in 0.1V steps within 2.0V ~ 7.0V and
maximum frequency is 100kHz (Typ.)
Output voltage accuracy: 2.5%
Maximum oscillator frequency
: 100kHz ( 15%)
Built-in switching transistor
With a built-in switching transistor, a step-up circuit can be configured
using a coil, diode and capacitor connected externally.
Also available is a CE (chip enable) function that reduces power
consumption during shut-down mode, and an independent VDD pin
function (separated power supply and voltage detect pins) for fly-back
circuits.
CE function and/or separated VDD/VOUT types selectable with
5 pin packages
Small package
: SOT-23/25 mini-mold (3pin, 5pin)
SOT-89/89-5 mini-power mold
(3 pin, 5 pin)
SOT-89-5 and SOT-23/25 small packages.
■Typical Application Circuit
■Electrical Characteristics
For typical application circuit and electrical characteristics of XC6385 series, please refer to that of XC6382 series.
For more detail, please contact Torex sales offices or sales person.
■Pin Configuration
XC6385C/E
XC6385A
XC6385C/E
XC6385A
VSS
LX
5
4
VOUT
LX
VSS
3
5
4
SOT-89�
(TOP VIEW)�
�
SOT-89-5�
(TOP VIEW)
SOT-23�
(TOP VIEW)
SOT-25�
(TOP VIEW)�
�
1
2
1 2 3
CE/VOUT VOUT/VDD NC
1
NC
2 3
VOUT/VDD CE/VOUT
1
2
3
X
V
SS
L
X
V
SS
V
OUT
L
525
04S_11XC6385 02.09.12 14:59 ページ 526
XC6385 Series
■Product Classification
GSelection Guide
PARAT
TYPE
DUTY
RATIO
SWITCHING
TRANSISTOR FUNCTION
CE
PACKAGE
V
DD PIN
NO
FEATURES
SOT-23
SOT-89
XC6385A
75%
75%
Built-in
Built-in
NO
Duty Ratio 75%
Stand-by (CE) function
During stand-by (CE pin "Low"),
Supply current = 0.50µA (max)
SOT-23
SOT-89-5
XC6385C
YES
NO
Since the power supply (VDD) pin and the
voltage sensor (VOUT) pin are separated,
use as a PFM controller is possible.
SOT-23
SOT-89-5
XC6385E
75%
Built-in
NO
YES
4
GOrdering Information
XC6385qwerty
XC6385 Series
PFM Controlled Duty 75%
3-pin. Built-in switching transistor
A
q
C
E
Stand-by capability. (5-pin) Built-in switching transistor
Stand-by capability. (5-pin) Built-in switching transistor
w
e
Output Voltage
e.g.VOUT=3.5V ➔ w=3,
e=5
r
1
Maximum Oscillator Frequency 100kHz
q
q
=A
=C, E
SOT-23
SOT-25
Package
Package
M
t
q
q
=A
=C, E
SOT-89
SOT-89-5
P
R
L
Embossed tape: Standard Feed
Embossed tape: Reverse Feed
y
526
04S_11XC6385 02.09.12 14:59 ページ 527
XC6385
Series
■Packaging Information
GSOT-23
+0.1�
-0.05
+0.1�
-0.05
0.15
0.4
0～0.1
（0.95）�
1.1±0.1
1.9±0.2
2.9±0.2
4
GSOT-25
+0.1�
-0.05
0.15
+0.1�
-0.05
0.4
0～0.1
（0.95）�
1.9±0.2
1.1±0.1
2.9±0.2
527
04S_11XC6385 02.09.12 14:59 ページ 528
XC6385 Series
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
1.5±0.1 1.5±0.1
4
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
528
04S_11XC6385 02.09.12 14:59 ページ 529
XC6385
Series
■Marking
w
q
r
e
q
w e r
2
1
4
3
q w e r
SOT-25
(TOP VIEW)
SOT-89-5
(TOP VIEW)
SOT-23
(TOP VIEW)
SOT-89
(TOP VIEW)
q Represents the Product Classification
DESIGNATOR
FUNCTION
PRODUCT NAME
－�
CE
Built-in Transistor
XC6385A＊＊＊＊＊�
XC6385C＊＊＊＊＊�
XC6385E＊＊＊＊＊�
E
L
Built-in Transistor
Built-in Transistor
N
VDD/VIN
4
w Represents the integer of the Output Voltage and Oscillator Frequency
OSCILLATOR FREQUENCY（kHz）�
INTEGER OF THE OUTPUT VOLTAGE
100
1
2
3
4
5
6
7
1
2
3
4
5
6
7
e Represents the decimal number of the Output Voltage and Oscillator Frequency
OSCILLATOR FREQUENCY（kHz）�
OUTPUT VOLTAGE
100
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
r Denotes the production lot number�
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
529
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XC6385 Series
■Block Diagram
DD
V
Lx
V
LX limiter
Vref
V
OUT
Buffer
+
-
PFM Control OSC
100kHz
V
SS
�
Chip Enable
CE
Note: The CE pin is set up for XC6385C.
V
DD
V
V
DD
4
Lx
Vref
V
LX limiter
・�
OUT
Buffer
+
-
PFM Control OSC
100kHz
V
SS
・�
Note: The VDD pin is set up for XC6385E.
■Electrical Characteristics
For electrical characteristics of XC6385 series, please refer to that of XC6382 series.
For more detail, please contact Torex sales offices or sales person.
530
04S_11XC6385 02.09.12 14:59 ページ 531
XC6385
Series
■Typical Performance Characteristics
GXC6385A301 (Outut Voltage = 3.0V)
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT (2) EFFICIENCY vs. OUTPUT CURRENT
XC6385A301
XC6385A301
L=220μH,CL=22μF (Tantalum)
L=220μH,CL=22μF (Tantalum)
3.2
3.1
3.0
2.9
2.8
2.7
100
80
60
40
20
0
TOP DOWN VIN=1.8V,1.5V,1.2V
TOP DOWN VIN=1.8V,1.5V,1.2V
0.9V
0.9V
0
2
4
6
8
10
0
2
4
6
8
10
Output Current:IOUT (mA)
Output Current:IOUT (mA)
4
(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT (4) NO LOAD INPUT CURRENT vs. INPUT VOLTAGE
XC6385A301
XC6385A301
L=220μH,CL=22μF (Tantalum)
L=220μH,CL=22μF (Tantalum)
120
90
60
30
0
30
20
10
0
VIN =1.8V
1.5V
1.2V
0.9V
0
2
4
6
8
10
0.8
1.2
1.6
2.0
2.4
Output Current:IOUT (mA)
Input Voltage:VIN (V)
531
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