Series
PFM (Frequency)Controlled, Step-Up DC/DC Converters
NPager
Use
NDuty
Ratio
NCMOS
Structure
: Low Noise
: 75%
: Small Supply
■Applications
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 : ±2.5%
4
■Features
Low noise
Operating voltage range
: 0.9V~10V
Output voltage range
: 2.0V~7.0V (programmable in 0.1V
steps)
Output voltage accuracy:
±2.5%
Maximum oscillator frequency
: 100kHz (±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)
■General 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.
■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.
■ 端子配列
XC6385A
■Pin 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
TOREX [ TOREX SEMICONDUCTOR ]
