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XC6367E423MR Datasheet(PDF) 1 Page - Torex Semiconductor

Part # XC6367E423MR
Description  PWM Controlled, PWM/PFM Switchable Step-Up DC/DC Controllers
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC6367E423MR Datasheet(HTML) 1 Page - Torex Semiconductor

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PWM Controlled, PWM/PFM Switchable Step‐Up DC/DC Controllers
Series
407
4
■General Description
■Features
■Applications
■Typical Application Circuit
■Typical Performance
Characteristic
The XC6367/68 series are multi-functional step-up DC/DC converter
controllers with built-in high speed, low ON resistance drivers.
Large output currents are possible using an externally connected
transistor, coil, diode and condenser.
Output voltage is selectable in 0.1 steps within a 1.5V ~ 6.5V range
(±2.5%). For output voltages outside this range, we recommend this FB
version, which has a 1.0V internal reference voltage. Using this version,
the required output voltage can be set-up using 2 external resistors.
With a 300kHz switching frequency, the size of the external components
can be reduced.
Control switches from PWM to PFM during light loads with the XC6368
(PWM/PFM switchable) and the series is highly efficient from light loads
to large output currents.
Soft start time of XC6367/68A, B, and C series is internally set to
10msec and XC6367/68C, D, and F series regulate soft start time by
connecting resistors and capacitors exteranally.
During stand-by time (CE pin "Low"), current consumption is reduced to
less than 0.5
µA.
Input voltage range
: 0.9V~10V
Operating voltage range : 2.0V~10V
Output voltage range
: 1.5V~6.5V programmable in 0.1V
steps (±2.5%)
Oscillator frequency
: 300, 100kHz (±15%)
Custom products for 180, 500kHz
Output Current
: 200mA + (VIN=1.8V, VOUT=3.3V)
High Efficiency
: 84% (typ.)
Stand-by capability
:ISTB=0.5A (max.)
Selection
: Soft start set-up external
Output Voltage set-up internal (VOUT)
Output Voltage set-up external (FB)
Package
: SOT-25
GElectronic Information Organizers
GPalmtops
GCellular and portable phones
GPortable Audio Systems
GVarious Multi-function Power Supplies
NInput Voltage Range : 0.9~10.0V
NOutput Voltage Range : 1.5~6.5V(±2.5%)
NOscillator Frequency : 300kHz(±15%)
NPWM/PFM Switching Control (XC6368)
NHigh Efficiency
: 84% (typ.)
NSOT-25 Package
VOUT
RL
Tr
L
VDD
VOUT
GND
CE
EXT
CL
(Tantalum)
CIN
SD
VIN
0
20
40
60
80
100
0.1
1
10
100
1000
VIN=0.9V 1.2V
1.8V
1.5V
2.7V
XC6368A333MR (300kHz,3.3V)
Output Current:IOUT (mA)
L=22μH(CR54), CL=94μF(Tantalum)
SD:MA737, Tr:XP161A1355P
04S_02XC6367/68 02.09.12 14:41 ページ 407


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