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Número de pieza | XC6222 | |
Descripción | 700mA High Speed LDO Regulator | |
Fabricantes | Torex Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de XC6222 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
No Preview Available ! XC6222 Series
Reverse Current Protection, 700mA High Speed LDO Regulator
ETR0344-003
■GENERAL DESCRIPTION
The XC6222 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed
CMOS 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. In this
stand-by mode, the electric charge at the output capacitor (CL) will be discharged by the internal auto-discharge switch, and as
a result the VOUT pin will quickly return to the VSS level.
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, the reverse current flow is prohibited when VOUT voltage is higher than VIN voltage. The device is optimized
for use in backup power circuits.
■APPLICATIONS
● USB Products
● CD/DVD/HDD drives
● Mobile phones
● Portable game consoles
● Camera modules
● Electronic dictionaries
■FEATURES
Dropout Voltage
Operating Voltage Range
Output Voltages
Accuracy
Low Power Consumption
Stand-by Current
High Ripple Rejection
Operating Temperature
Low ESR Capacitor
Environmentally Friendly
Packages
: 120mV @IOUT=300mA(VOUT=3.0V)
: 1.7V ~ 6.0V
: 0.8V~5.0V (0.05V increments)
: +1% (VOUT>2.0V)
+0.02V (VOUT≦2.0V)
: 100μA (VOUT=3.0V)
: Less than 0.1μA
: 65dB @ 1kHz
: -40℃~+85℃
: Ceramic capacitor
: EU RoHS Compliant, Pb Free
: USP-6C, SOT-25, SOT-89-5
www.■DataTSYheePt4IUC.coAmL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
● Load Transient Response
●負荷過渡応答特性例
XC6222x151
tr=tf=5μs,VIN=2.5V, Ta=25℃
VOUT=10→300mA, CIN=1.0μF(ceramic), CL=6.8μF(ceramic)
1.6
Output Voltage
1.5
1000
800
1.4 600
1.3 Output Current
400
1.2 200
1.1 0
Time:100μs/div
*CL: 2.2μF or higher (VOUT=2.5~5.0V)
4.7μF or higher (VOUT=2.1~2.45V)
6.8μF or higher (VOUT=0.8~2.05V)
1/26
1 page XC6222
Series
■ELECTRICAL CHARACTERISTICS (Continued)
NOTE:
* 1: Unless otherwise stated, input voltage is VIN=VOUT(T)+1.0V.
* 2: VOUT (E) is effective output voltage (Refer to the voltage chart E-0 and E-1)
It is defined as output voltages when an amply stabilized VOUT (T) +1.0V is supplied to the VIN pin while maintaining a certain IOUT .
* 3: The relation between VOU T (E) and VOUT (T) is shown in the voltage chart E-0 and E-1.
* 4: VOUT (T) is nominal output voltage
* 5: Vdif = {VIN1(*7)-VOUT1(*6)}
* 6: VOUT1 equals 98% of the output voltage when amply stabilized VOUT (T) +1.0V are supplied to the VIN pin.
* 7: VIN1 is the input voltage when VOUT1 appears at the VOUT pin while input voltage is gradually decreased.
* 8: Reverse current (IREV) flows from VOUT to VIN.
* 9: VOUT pin sink current (IREVS) flows from VOUT to VSS.
*10: For the XC6222A/C series only. In the XC6222B/D series, the current flows from the VOUT pin to the VSS pin via the internal switch
when CE pin is low. Please do not connect another power supply to the VOUT pin. Please also note when the XC6222A/C series
connects external power supply to the VOUT pin, please use under 6.0V.
*11: For the XC6222B/D series only. The XC6222A/C series discharges via two resistors R1 and R2 shown in the block diagram.
www.DataSheet4U.com
5/26
5 Page XC6222
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
((11))出Ou力tp電ut圧V-o出lta力g電e v流s.特O性ut例put Current
※*CE CVEol電ta圧geにcつonいdてitio特nに: u指n定lesのsなoいth場er合wisVeCEs=tVaItNeとd すVCるE=。VIN
XC6222x081
VIN=1.8V, CIN=1.0μF(ceramic), CL=6.8μF(ceramic)
1.0
XC6222x081
1.0 Ta=25℃, CIN=1.0μF(ceramic), CL=6.8μF(ceramic)
0.8 0.8
0.6 0.6
0.4
0.2
0.0
0
85℃
25℃
-40℃
0.2 0.4 0.6 0.8 1
Output Current:IOUT(A)
1.2
0.4
0.2
0.0
0
VIN=1.4V
VIN=1.6V
VIN=1.8V
VIN=2.3V
VIN=6.0V
0.2 0.4 0.6 0.8
Output Current:IOUT(A)
1
1.2
XC6222x151
VIN=2.5V, CIN=1.0μF(ceramic), CL=6.8μF(ceramic)
2.0
1.5
1.0
0.5
0.0
www.DataSheet4U.com 0
0.2 0.4 0.6 0.8
Output Current:IOUT(A)
85℃
25℃
-40℃
1 1.2
XC6222x281
VIN=3.8V, CIN=1.0μF(ceramic), CL=2.2μF(ceramic)
3.0
2.5
2.0
1.5
1.0 85℃
25℃
0.5 -40℃
0.0
0 0.2 0.4 0.6 0.8 1 1.2
Output Current:IOUT(A)
XC6222x151
Ta=25℃, CIN=1.0μF(ceramic), CL=6.8μF(ceramic)
2.0
1.5
1.0
0.5
0.0
0
0.2 0.4 0.6 0.8
Output Current:IOUT(A)
VIN=1.6V
VIN=1.8V
VIN=2.0V
VIN=2.5V
VIN=6.0V
1 1.2
XC6222x281
Ta=25℃, CIN=1.0μF(ceramic), CL=2.2μF(ceramic)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
VIN=2.9V
VIN=3.1V
VIN=3.3V
VIN=3.8V
VIN=6.0V
0.2 0.4 0.6 0.8
Output Current:IOUT(A)
1
1.2
11/26
11 Page |
Páginas | Total 26 Páginas | |
PDF Descargar | [ Datasheet XC6222.PDF ] |
Número de pieza | Descripción | Fabricantes |
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