☆GO-Compatible
Preliminary
◆Low Power Consumption
■APPLICATIONS
●
●Portable games
●Cameras, VCRs
●Portable AV equipment
●PDAs
◆Dropout Voltage
: 40mV@30mA
135mV@100mA
●Cellular phones
Cordless phones, Wireless communication equipment
◆Output Voltage Range : 0.8V ~ 5.0V
◆Output Current
:
300mA <Up to 380mA (TYP.)>
◆Low ESR Capacitor Compatible
◆Fast Ripple Rejection, Low Output Noise
◆Green Operation (GO)
◆CL 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 includes fast ripple
rejection and low dropout voltage, and the series includes a
voltage reference, an error amplifier, a current limiter anda
phase compensation circuit plus a driver transistor.
Green operation (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
switch point is fixed internally within the IC.
Maximum Output Current
Dropout Voltage
:
300mA <Up to 380mA (TYP.)>
: 135mV@ IOUT=100mA
Operating Voltage Range: 2.0V ~ 6.0V
Output Voltage Setting Range
Accuracy
:
:
0.8V ~ 5.0V (50mV increments)
±
2% (HS Mode:VOUT >1.5V)
+
2%,-3% (PS Mode:VOUT >1.5V)
30mV (HS Mode:VOUT 1.5V)
±
≦
+30mV, -45mV (HS Mode:VOUT
≦
1.5V)
Low Power Consumption
Standby Current
Fast Ripple Rejection : 70dB @ 1kHz
Operating Temperature Range: 40℃ ~ 85℃
Low ESR Capacitor
Ultra Small Packages : SOT-25
USP-6C
:
5.5
50
: Less than 0.1μA
μ
A (TYP.), when PS mode
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.
μ
A (TYP.), when HS mode
By inputting a low signal to the CE pin, the IC will be put into
an OFF state. In this state, with the XC6207B series, a short
will be created via the internal switch located between the
VOUT and VSS pins.
: Ceramic capacitor compatible
This short enables the stored charge at the output capacitor
(CL) to be discharged enabling the VOUT pin quickly returns
to the VSS level.
The series' output stabilization capacitor (CL) is also
compatible with low ESR ceramic capacitors. Output
voltage is selectable in 50mV increments within a range of
0.8V ~ 5.0V. The constant current limit circuit and current
limiter's foldback circuit also operate as a short circuit
protection for the output current limiter and the output pin.
■TYPICAL PERFORMANCE
CHARACTERISTICS
■TYPICAL APPLICATION CIRCUIT
●Supply Current vs. Output Current
XC6207A182xx
VIN=CE, VSS=GO=0V
O
VIN=2.8V, CIN=CL=1.0µF, Ta=25 C
VIN
VSS
CE
VOUT
GO
80
70
60
50
40
30
20
10
0
CL
1uF
CIN
1uF
INPUT
0
1
2
3
4
5
Output Current IOUT (mA)
13