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Sharp IQ-9B01 User Manual

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IXD9213/14
© 2014 IXYS Corp.
1
Doc. No. IXD9213_DS, Rev. N0
Characteristics subject to change without notice
1.5 A Step-Down DC/DC Converter
with Built-in Inductor
FEATURES
o Built-in inductor and transistors
o Operating Input Voltage Range: 2.7 V ~ 6.5 V
o Output Voltage Range: 0.8 V ~ 3.6 V
o Output Voltage Error: ±2%
o Output Current: 1500 mA
o High Efficiency: 92% (V
IN
= 5.0 V, V
OUT
= 3.3V)
o Oscillation Frequency: 3.0 MHz
o Maximum Duty Cycle: 100%
o Operating Modes: PWM, PWM/PFM auto select
o Functions: Chip Enable, Built-in Current Limit, High
Speed Load Capacitor Discharge, Soft start, thermal
shutdown
o Operating Ambient temperature: -40 ~ +85
0
C
o Package: USP-9B01
o EU RoHS Compliant, Pb Free
APPLICATION
o Mobile Phones
o Bluetooth headsets
o Digital home appliances
o Office automation equipment
o Various portable equipment
DESCRIPTION
The IXD9213/14 series are synchronous step-down
DC/DC converters with an inductor and a control IC
in one tiny (2.5 x 3.2 x 1.0 mm) package. A stable
power supply with an output current of 1500 mA
requires only two capacitors connected externally.
Operating voltage range is from 2.7 V to 6.5 V.
Output voltage is internally set in a range from 0.8 V
to 3.6 V. The device operates at 3.0 MHz switching
frequency, and includes 0.14 Ω P-channel switching
transistor and 0.10 Ω N-channel transistor for
synchronous rectification. The IXD9213 series
operate in a fast transient response PWM mode,
while IXD9214 series automatically switching
between PWM/PFM modes.
An automatic PWM/PFM switching allows fast
response to the load changes, low ripple noise, and
high efficiency over the full range of loads.
CE pin allows set device into stand-by mode with a
current consumption below 1.0 µA.
The built-in Under Voltage Lockout (UVLO) function
forces the internal switching transistor OFF when
input voltage becomes less than 2.0 V
IXD9213/14 series have a fast soft start function
internally set at 0.3 ms (typ).
IXD9213/14 series have also fast load capacitor C
L
auto discharge function, which allows fast C
L
discharge through switch located between the L
X
and
V
SS
pins. When the devices enter stand-by mode,
output voltage quickly returns to the V
SS
level
because of this function.
TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTIC
Pins L1 – L
X
and L2 – V
OUT
should be connected externally
Efficiency vs. Output Current (f
OSC
= 3.0 MHz, V
OUT
= 3.3 V)
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Summary of Contents

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IXD9213/14 © 2014 IXYS Corp. 1 Doc. No. IXD9213_DS, Rev. N0 Characteristics subject to c

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