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XC9226B3K6MR

Description
Power Supply Module,
CategoryPower/power management    The power supply circuit   
File Size491KB,21 Pages
ManufacturerTOREX
Websitehttp://www.torex.co.jp/chinese/
Environmental Compliance
Download Datasheet Parametric View All

XC9226B3K6MR Overview

Power Supply Module,

XC9226B3K6MR Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid145011203525
package instruction,
Reach Compliance Codecompliant
ECCN codeEAR99
Date Of Intro2018-05-24
XC9225/XC9226/XC9227
Series
Synchronous Step-Down DC/DC Converters
ETR0507_004
☆GreenOperation
Compatible
■GENERAL
DESCRIPTION
The XC9225/XC9226/XC9227 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.6Ω
P-channel driver transistor and 0.7ΩN-channel switching transistor, designed to allow the use of ceramic capacitors. The
ICs enable a high efficiency, stable power supply with an output current of 500mA (A~D series) and 600mA (E~H series) to be
configured using only a coil and two capacitors connected externally. Minimum operating voltage is 2.0V~6.0V (A~D series),
4.5V~5.5V (E~H series). Output voltage is internally programmable in a range from 0.9V to 4.0V (A~D series) and 3.0~4.0V
(E~H series) in increments of 0.05V (accuracy:
±2.0%).
With the built-in oscillator, oscillation frequency is selectable from
600kHz and 1.2MHz to make available the frequency best suited to your particular application. As for operation mode, the
XC9225 series is PWM control, the XC9226 series is automatic PWM/PFM switching control and the XC9227 series can be
manually switched between the PWM control mode and the automatic PWM/PFM switching control mode, allowing fast
response, low ripple and high efficiency over the full range of load (from light load to high output current conditions).
The soft start and current control functions are internally optimized. During standby, all circuits are shutdown to reduce
current consumption to as low as 1.0μA or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal
P-channel driver transistor is forced OFF when input voltage becomes 1.4V or lower. Two types of package, SOT-25
(250mW) and USP-6B (100mW), are available.
■APPLICATIONS
●Mobile
phones (PDC, GSM, CDMA, IMT2000 etc.)
●Bluetooth
equipment
●PDAs,
Portable communication modem
●Portable
games
●Cameras,
Digital cameras
●Cordless
phones
●Notebook
computers
■FEATURES
P-Ch Driver Tr. Built-In
N-Ch DriverTr. built-in
Input Voltage Range
Output Voltage Range
: ON resistance 0.6Ω
: ON resistance 0.7Ω
: 2.0V~6.0V (A~D series)
4.5V~5.5V (E~H series)
: 0.9V~4.0V (A~D series)
3.0V~4.0V (E~H series)
(0.05V increments)
Low Power Consumption
: 15μA (TYP.) (V
IN
=3.6V, V
OUT
=1.8V)
Control Method
: Fixed PWM (XC9225)
PWM/PFM Automatic (XC9226)
PWM/PFM Manual (XC9227)
High Efficiency
: 92% (TYP.)
(V
IN
=3.0V, V
OUT
=1.8V, I
OUT
=100mA)*
Output Current
: 500mA *(A~D series)
600mA *(E~H series)
Oscillation Frequency
: 600kHz, 1.2MHz (±15%)
Low Output Ripple
: 10mV
Maximum Duty Ratio
: 100%
Soft-Start Circuit Built-In
Current Limiter Circuit Built-In
(Constant Current & Latching)
Low ESR Ceramic Capacitor Compatible
Packages
: SOT-25 (SOT-23-5), USP-6B
* Performance depends on external components and wiring on the PCB
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Efficiency
vs. Output Current
XC9227A18C
L=4.7uH(NR3015),CIN=4.7uF(ceramic),
CL=10uF(ceramic),Topr=25
V IN
L
1
VIN
V SS
Lx
5
VOUT
500mA (600mA)
100
90
Efficiency:EFFI(%)
C IN
(ceramic)
CE/ MODE
2
CL
(ceramic)
80
70
60
50
40
30
20
10
0
0.1
1
10
100
Output Current:IOUT(mA )
1000
V IN=5.0V
V IN=3.6V
V IN=2.7V
3
CE/
MODE VOUT 4
PWM/PFM A utomatic Sw itching Control
PWM Control
1/21
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