XC6227 Series
700mA High Speed LDO Regulator with Reverse Current Protection
ETR0354-004
■GENERAL DESCRIPTION
The XC6227 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed
voltage regulator.
The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a thermal protection circuit, a
reverse current protection circuit and a phase compensation circuit.
The CE function enables the entire circuit to be placed in a stand-by state by inputting a low level signal to the CE pin.
Over-current protection and thermal protection circuits are integrated. The protection circuit starts to operate when either output
current reaches the current limit level or junction temperature reaches the temperature limit. With the reverse current protection
function of a driver transistor, the reverse current flow is prohibited when VOUT voltage is higher than VIN voltage. For an example,
when a battery is connected to the VOUT pin, battery current will not flow back to the XC6227.
■APPLICATIONS
● USB products and HDMI equipments
● E-book Readers / Electronic dictionaries
● Smart Phones / Mobile phones
● Portable game consoles
● Modules (Wireless, Camera, etc.)
■FEATURES
Maximum Output Current : 700mA
Dropout Voltage
Operating Voltage Range
: 120mV @IOUT=300mA(VOUT=3.0V)
: 1.7V ~ 6.0V
Output Voltages
: 0.8V~5.0V (0.05V increments)
Accuracy
: +1% (VOUT>2.0V)
+0.02V (VOUT≦2.0V)
Low Power Consumption : 100μA
Chip Enable(CE)
: Active High
Standby Current below 0.1μA
High Ripple Rejection
: 65dB @ 1kHz
Operating Ambient Temperature : -40℃~+85℃
Low ESR Capacitor
: Ceramic capacitor
Packages
: USP-6C, SOT-25, SOT-89-5
Environmentally Friendly : EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT ■ TYPICAL PERFORMANCE
CHARACTERISTICS
●●逆V流OU時T SViOnUkT端Cu子rrシenンt VクS電. I流np-u入t V力o電lta圧ge特性例
XC6227C331
VOUT=3.3V
IOUT=0mA
10
-40℃
8
25℃
6
85℃
4
2
0
-2
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Input Voltage:VIN(V)
1/25