XC6602 Datasheet, PDF (1/31 Pages) Torex Semiconductor – 1A, 0.5V Low Input Voltage, High Speed LDO Regulator

XC6602 Series
ETR03045-006
1A, 0.5V Low Input Voltage, High Speed LDO Regulator
■GENERAL DESCRIPTION
The XC6602 series is a low voltage input (0.5V) operation and provides high accuracy ±15mV/±20mV and can supply large
current efficiently due to its ultra low on-resistance even at low output voltages.
The series is ideally suited to the applications which require high current in low input/output voltages and consists of a Nch
driver transistor, a voltage reference, an error amplifier, a current limiter, a fold-back circuit, a thermal shutdown (TSD) circuit, an
under voltage lock out (UVLO) circuit, a soft-start circuit and a phase compensation circuit.
Output voltage is selectable in 0.1V increments within a range of 0.5V to 1.8V using laser trimming technology and ceramic
capacitors can be used for the output stabilization capacitor (C_L). The inrush current (I_RUSH) from V_IN to V_OUT for charging C_L at
start-up can be reduced and makes the V_IN stable. The soft-start time is optimized internally.
The CE function enables the output to be turned off and the series to be put in stand-by mode resulting in greatly reduced
power consumption. At the time of entering the stand-by mode, the series enables the electric charge at the output capacitor (C_L)
to be discharged via the internal switch. As a result the V_OUT pin quickly returns to the V_SS level.
The CE pull-down function keeps the IC to be in stand-by mode even if the CE pin is left open.
■APPLICATIONS
● Smart phones / Mobile phones
● Digital still cameras / Camcorders
● Note PC / Tablet PC
● E-book Readers / Electronic dictionaries
● Wireless LAN
■FEATURES
Maximum Output Current
ON Resistance
Bias Voltage Range
Input Voltage Range
Output Voltage Range
Output Voltage Accuracy
Ripple Rejection
Low Power Consumption
Stand-by Current
Under-voltage Lockout
Thermal Shutdown
Protection Circuit
Function
Operating Ambient Temperature
Output Capacitor
Packages
Environmentally Friendly
: 1A (1.3A Limit)
: 0.15Ω＠V_BIAS=3.6V,V_OUT=1.2V
: 2.5V～6.0V
: 0.5V～3.0V
: 0.5V～1.8V (0.1V increments)
: ±0.015V＠V_OUT＜1.2V
±0.020＠V_OUT≧1.2V
: 60dBï¼ f=1kHz (V_{BIAS_PSRR})
75dBï¼ f=1kHz(V_{IN_PSRR})
: 100μA (V_BIAS), 6.5μA(V_IN)＠V_OUT=1.2V
: 0.01μA (V_BIAS), 0.01μA (V_IN)
: 1.8V (V_BIAS), 0.4V (V_IN)
: 150℃＠detect, 125℃＠release
: Fold-back Current Limit, TSD, UVLO
: Built-in Soft-start
CE Pull-Down (Active High)
C_L Auto Discharge
: -40℃～+85℃
: Ceramic Capacitor Compatible (2.2μF)
: USP-6C, SOT-26W, SOT-89-5,WLP-5-02
: EU RoHS Compliant, Pb Free
■ TYPICAL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Dropout Voltage vs. Output Current
250
200
150
XC6602x121MR-G
VCE=VBIAS, CBIAS=CIN=1.0μF, CL=2.2μF
Ta=25℃
VBIAS=3.3V
VBIAS=3.6V
VBIAS=5.0V
100
50
0
0
200 400 600 800 1000
Output Current: I_OUT(mA)
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