May 17, 2005 V4
☆GO-Compatible
◆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
●Cameras, VCRs
●Portable AV equipment
●PDAs
◆Output Current
:
300mA <Up to 380mA (TYP.)>
◆Low ESR Capacitor Compatible
◆High Ripple Rejection, Low Output Noise
◆Regulators with Green Operation (GO) Function
◆CL High-Speed Auto-Discharge (XC6207B)
■GENERAL DESCRIPTION
■FEATURES
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.
Maximum Output Current
Dropout Voltage
:
300mA <Up to 380mA (TYP.)>
: 120mV@ IOUT=100mA
Operating Voltage Range: 2.0V ~ 6.0V
Output Voltage Setting Range
Accuracy
:
:
1.2V ~ 5.0V (50mV increments)
2% (HS Mode:VOUT >1.5V)
±
Output voltage is selectable in 50mV increments within a range
of 1.2V~5.0V, using laser trimming technologies.
＋
2%,-3% (PS Mode:VOUT >1.5V)
30mV (HS Mode:VOUT 1.5V)
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
+30mV, -45mV (PS Mode:VOUT
≦
1.5V)
Low Power Consumption
Standby Current
High Ripple Rejection : 70dB @ 1kHz
Operating Temperature Range: -40℃ ~ 85℃
Low ESR Capacitor
Ultra Small Packages : SOT-89-5
:
5.5μ
A (TYP.)(PS mode)
50μ
A (TYP.)(HS mode)
operates when the GO pin is low-level.
When only
: Less than 0.1μA
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.
: Ceramic capacitor compatible
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.
SOT-25
USP-6C
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 PERFORMANCE
CHARACTERISTICS
●Supply Current vs. Output Current
■TYPICAL APPLICATION CIRCUIT
XC6207A182xx
VIN=CE, VSS=GO=0V
O
VIN=2.8V, CIN=CL=1.0µF, Ta=25 C
80
70
60
50
40
30
20
10
0
VIN
VOUT
CL
1uF
CIN
1uF
VSS
CE
Input
GO
Input
0
1
2
3
4
5
Output Current IOUT (mA)
1
Data Sheet
ud200527
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