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XC6416FA31MR

Description
Dual LDO Voltage Regulator with “GreenOperation”
File Size2MB,31 Pages
Manufacturer
Download Datasheet View All

XC6416FA31MR Overview

Dual LDO Voltage Regulator with “GreenOperation”

XC6416
Series
Dual LDO Voltage Regulator with “GreenOperation”
JTR0333-006
■GENERAL
DESCRIPTION
☆GreenOperation
Compatible
The XC6416 series is a high accurate, low noise, high ripple rejection, and low dropout CMOS Dual regulator with
GreenOperation function. The series includes a reference voltage source, an error amplifier, a current limiter, and a phase
compensation circuit.
GreenOperation function provides high speed operation, low power consumption and high efficiencies by automatically
switching between a high speed mode (HS) and a power save mode (PS) depending on the load current level. The
switching point of the GreenOperation to the output current is being fixed inside the IC, thus providing operating conditions
with the most suitable level of supply current for the application. The USP-6C package has GO pin. If a high level singal is
input to the GO pin, the XC6416 can be used as a high speed fixed mode regulator.
The EN function turns each output of the two regulators independently. In this state, the electric charge at the output
capacitor (C
L
) is discharged via the internal auto-discharge switch, and as a result the V
OUT
voltage quickly returns to the V
SS
level. The output stabilization capacitor (C
L
) is also compatible with low ESR ceramic capacitors. Output voltage is
selectable in 0.05V increments within a range of 0.8V ~4.0V, using laser trimming technologies. The series includes a
fold-back circuit, which aids the operation of the current limiter and circuit protection.
■APPLICATIONS
Mobile phones
Cordless phones, wireless communication equipment
Portable games
Cameras, video recorders
Portable audio equipment
PDAs
FEATURES
Maximum Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
High Output Accuracy
: 200mA (300mA limit, TYP.)
: 95mV@I
OUT
=100mA, V
OUT
=3.0V
: 1.5V~6.0V
: 0.8V~4.0V (0.05V increments)
: ±1% <XC6416A/B/C/D in HS Mode>
±0.02V @ V
OUT
≦1.95V
±2% <XC6416E/F/G/H in HS Mode>
±0.03V @ V
OUT
≦1.45V
±3% <XC6416A~H in PS Mode>
±0.06V @ V
OUT
≦1.95V
Low Power Consumption
: 5μA/ch @ PS mode (TYP.)
28μA/ch @ HS mode (TYP.)
Stand-by Current
: Less than 0.1μA
Ripple Rejection Rate
: 60dB @ 1kHz
Operating Temperature Range: - 40
O
C ~ 85
O
C
Low ESR Capacitor
: 1.0μF Ceramic Capacitor Compatible
Small Packages
: USP-6C, SOT-26
■TYPICAL
APPLICATION CIRCUITS
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●負荷過渡応答
●Load
Transient Response
XC6416CCxxER(V
OUT
=2.8V)
V
IN
=3.8V、Ta=25℃
tr=5μs
C
IN
=1.0μF(ceramic)、C
L
=1.0μF(ceramic)
2.9
2.8
Ouput Voltage : V
OUT
[V]
2.7
2.6
2.5
2.4
2.3
I
OUT
=0.1mA
Output Current : I
OUT
=50mA
300
Output Voltage : V
OUT
(HS Mode)
250
200
150
100
50
0
Output Current : I
OUT
[mA]
Output Voltage : V
OUT
(GO Mode)
Time (10μs/div)
1/30
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