XC6207B 데이터 시트보기 (PDF) - TOREX SEMICONDUCTOR
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XC6207B Datasheet PDF : 30 Pages
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☆GO-Compatible
May 17, 2005 V4
◆CMOS Low Power Consumption
■APPLICATIONS
◆Dropout Voltage
: 40mV@30mA
●Cellular phones
120mV@100mA
●Cordless phones, Wireless communication equipment
◆Output Voltage Range : 1.2V ~ 5.0V
●Portable games
◆Output Current
: 300mA <Up to 380mA (TYP.)> ●Cameras, VCRs
◆Low ESR Capacitor Compatible
●Portable AV equipment
◆High Ripple Rejection, Low Output Noise
●PDAs
◆Regulators with Green Operation (GO) Function
◆CL High-Speed Auto-Discharge (XC6207B)
■GENERAL DESCRIPTION
The XC6207 series are precise, low noise, high speed, low
dropout regulators with green operation (GO) function. They
are fabricated using Torex’s CMOS process. Performance
features of the series include high ripple rejection and low
dropout voltage, and the series include a reference voltage
source, an error amplifier, a current limiter, and a phase
compensation circuit.
Output voltage is selectable in 50mV increments within a range
of 1.2V~5.0V, using laser trimming technologies.
The series' output stabilization capacitor (CL) is also
compatible with low ESR ceramic capacitors.
GO 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
upon the load current level. The switching point of the GO to
the output current is being fixed inside the IC. The IC
operates when the GO pin is low-level. When only
high-speed operation is required, it can be fixed by inputting a
high level signal to the GO pin, thus providing operating
conditions with the most suitable level of supply current for the
application.
The CE function enables the output to be turned off resulting in
greatly reduced power consumption. In this state, with the
XC6207B series, the IC turns on the internal switch located
between the VOUT and VSS pins. This short enables the
electric charge at the output capacitor (CL) to be discharged
via the internal auto-discharge resistance, and as a result the
VOUT pin quickly returns to the VSS level.
The constant current limit circuit and the current limiter's
foldback circuit also operate as a short circuit protection for the
output current limiter and the output pin.
■TYPICAL APPLICATION CIRCUIT
■FEATURES
Maximum Output Current : 300mA <Up to 380mA (TYP.)>
Dropout Voltage
: 120mV@ IOUT=100mA
Operating Voltage Range: 2.0V ~ 6.0V
Output Voltage Setting Range: 1.2V ~ 5.0V (50mV increments)
Accuracy
: ±2% (HS Mode:VOUT >1.5V)
＋2%,-3% (PS Mode:VOUT >1.5V)
±30mV (HS Mode:VOUT≦1.5V)
+30mV, -45mV (PS Mode:VOUT≦1.5V)
Low Power Consumption : 5.5μA (TYP.)(PS mode)
50μA (TYP.)(HS mode)
Standby Current
: Less than 0.1μA
High Ripple Rejection : 70dB @ 1kHz
Operating Temperature Range : -40℃ ~ 85℃
Low ESR Capacitor : Ceramic capacitor compatible
Ultra Small Packages : SOT-89-5
SOT-25
USP-6C
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Supply Current vs. Output Current
XC6207A182xx
VIN=CE, VSS=GO=0V
VIN=2.8V, CIN=CL=1.0µF, Ta=25OC
80
V IN V OUT
70
CIN
VSS
1uF
CL
60
1uF
50
40
I n pu t
CE
GO
30
I n pu t
20
10
0
0
1
2
3
4
5
Output Current IOUT (mA)
Data Sheet
1
ud200527
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