XC6207_1 Datasheet, PDF (1/33 Pages) Torex Semiconductor – High Speed "Green Operation" LDO Voltage Regulators

ETR0316_003
˙GENERAL DESCRIPTION
ˑGO-Compatible
Tçhe XC6207 series are precise, low noise, high speed, and low dropout regulators with green operation (GO) function. They are
fa_çbricated using Torex’s CMOS process. Performance features of the series include high ripple rejection and low dropout
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and the series include a reference voltage source, an error amplifier, a current limiter, and a phase compensation
Output voltage is selectable in 50mV increments within a range of 1.2V~5.0V, using laser trimming technologies. The
s^çeries' 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.
˙APPLICATIONS
˔Cellular phones
˔Cordless phones,
Wireless communication equipment
˔Portable games
˔Cameras, VCRs
˔Portable AV equipment
˔PDAs
˙FEATURES
Maximum Output Current : 300mA (Up to 380mA (TYP.))
Dropout Voltage
: 40mV@ I_OUT=30mA
: 120mV@ I_OUT=100mA
Operating Voltage Range : 2.0V ~ 6.0V
Output Voltage Setting Range : 1.2V ~ 5.0V (50mV increments)
Accuracy
Low Power Consumption
: ±2% (HS Mode: V_OUT >1.5V)
Ê´2%, - 3% (PS Mode: V_OUT >1.5V)
±30mV (HS Mode: V_OUTʽ1.5V)
+30mV, - 45mV (HS Mode: V_OUTʽ1.5V)
: 5.5μA (TYP.) (PS Mode)
50μA (TYP.) (HS Mode)
Stand-by Current
: Less than 0.1μA
High Ripple Rejection : 70dB @ 1kHz
Operating Temperature Range : - 40ˆ ~ 85ˆ
Low ESR Capacitor
: Ceramic capacitor compatible
CMOS
Low Output Noise
Green Operation (GO) Function
CL High-Speed Auto-Discharge (XC6207B)
Packages
: SOT-89-5, SOT-25, USP-6C
˙TYPICAL APPLICATION CIRCUIT
˙TYPICAL PERFORMANCE
CHARACTERISTICS
˔Supply Current vs. Output Current
XC6207A182xx
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