Series
PFM (Frequency)Controlled, Step-Up DC/DC Converters
NPager
Use
NDuty
Ratio
NCMOS
Structure
: Low Noise
: 75%
: Small Supply
鈻燗pplications
GPagers
GPalmtops
GCameras,
Video cameras
GVarious
portable products
Current
NOperating
Voltage Range : 0.9~10.0V
NOutput
Voltage Range
: 2.0~7.0V
NOutput
Voltage Accuracy : 鹵2.5%
4
鈻燜eatures
Low noise
Operating voltage range
: 0.9V~10V
Output voltage range
: 2.0V~7.0V (programmable in 0.1V
steps)
Output voltage accuracy:
鹵2.5%
Maximum oscillator frequency
: 100kHz (鹵15%)
Built-in switching transistor
CE function and/or separated V
DD
/V
OUT
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)
鈻燝eneral Description
The XC6385 series are a group of PFM (frequency) controlled step-up
DC/DC converters.
The XC6385 series employs CMOS process and laser trimming
technologies to attain low power and high accuracy.
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.)
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 V
DD
pin
function (separated power supply and voltage detect pins) for fly-back
circuits.
SOT-89-5 and SOT-23/25 small packages.
鈻燭ypical Application Circuit
鈻燛lectrical 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.
鈻?绔瓙閰嶅垪
XC6385A
鈻燩in Configuration
XC6385C/E
XC6385C/E
V
OUT
L
X
V
SS
XC6385A
V
SS
L
X
5
4
3
SOT-23
(TOP VIEW)
5
4
SOT-89
(TOP VIEW)
SOT-89-5
(TOP VIEW)
SOT-25
(TOP VIEW)
1
V
SS
2
L
X
1
2
3
CE/V
OUT
V
OUT
/V
DD
NC
1
V
SS
2
V
OUT
3
L
X
1
NC
2
3
V
OUT
/V
DD
CE/V
OUT
525
1
2
3
4
5
6
7
