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PDF XC6701 Data sheet ( Hoja de datos )
| Número de pieza | XC6701 | |
| Descripción | 28V Operation High Speed Voltage Regulators | |
| Fabricantes | Torex Semiconductor | |
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XC6701 Series
28V Operation High Speed Voltage Regulators with Stand-by Function
ETR0334-012
■GENERAL DESCRIPTION
The XC6701 series are positive voltage regulator ICs manufactured using CMOS process with 28V of operation voltage.
The series consists of a voltage reference, an error amplifier, a current limiter, a thermal protection circuit and a phase
compensation circuit plus a driver transistor.
The output voltage is selectable in 0.1V increments within the range of 1.8V to 18V which fixed by laser trimming
technologies. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors.
The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits will operate
when the output current reaches current limit level or the junction temperature reaches temperature limit level.
The CE function enables the output to be turned off and the IC becomes a stand-by mode resulting in greatly reduced power
consumption. Packages are selectable depending on the applications from SOT-25, SOT-89, SOT-89-5, USP-6C, SOT-223,
and TO-252.
■APPLICATIONS
●Car audio, Car navigation systems
●Note PCs / Tablet PCs
●Mobile devices / terminals
●Digital still cameras / Camcorders
●Smart phones / Mobile phones
●Multi-function power supplies
■FEATURES
Max Output Current
Dropout Voltage
Input Voltage Range
Output Voltage Range
High Accuracy
Low Power Consumption
Stand-by Current
High Ripple Rejection
Operating Ambient Temperature
Low ESR Capacitor
Packages
Environmentally Friendly
: More than 150mA (200mA limit)
(VIN=VOUT+3.0V)
: 300mV@IOUT=20mA
: 2.0V~28.0V
: 1.8V~18.0V (0.1V increments)
:±2%
: 50μA (VOUT=5.0Ｖ）
: Less than 0.1μA
: 50dB@1kHz
: -40℃~+85℃
: Ceramic Capacitor Compatible
(Internal Phase Compensation)
: SOT-25, SOT-89, SOT-89-5,
USP-6C, SOT-223, TO-252
: EU RoHS Compliant, Pb Free
■ TYPICAL APPLICATION CIRCUITS
■ TYPICAL PERFORMANCE
CHARACTERISTICS
XC6701B Series
With CE function
XC6701A/B/D 502
VIN=7.0V, tr=tf=5μs
CIN=CL=1.0μF (ceramic), Ta=25℃
5.4 150
5.3
5.2 120
5.1
5.0 90
4.9
4.8 60
4.7
4.6
Output Current
30
4.5
4.4 0
Time (1ms/div)
1/35
1 page  
■ELECTRICAL CHARACTERISTICS
XC6701
Series
●XC6701A/Bxx2 Series
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT CIRCUIT
Output Voltage
VOUT(E)
IOUT=10mA, VCE=VIN
Maximum Output Current
Load Regulation
IOUTMAX
△VOUT
VIN= VOUT(T)+3.0V , VCE=VIN
（VOUT(T)≧3.0Ｖ）
VIN=VOUT(T)+3.0V, VCE=VIN
(VOUT(T)＜3.0V)
1mA≦IOUT≦50mA , VCE=VIN
1.8V≦VOUT(T)≦5.0V
1mA≦IOUT≦50mA , VCE=VIN
5.1V≦VOUT(T)≦12.0V
1mA≦IOUT≦50mA , VCE=VIN
12.1V≦VOUT(T)≦18.0V
Dropout Voltage 1
Vdif1
IOUT=20mA, VCE=VIN
Dropout Voltage 2
Vdif2
IOUT=100mA ,VCE=VIN
1.8V≦VOUT(T)≦5.0V
Supply Current
ISS 5.1V≦VOUT(T)≦12.0V
12.1V≦VOUT(T)≦18.0V
Stand-by Current
ISTB
VCE=VSS
Line Regulation 1
Line Regulation 2
△VOUT/ VOUT(T)+2.0V≦VIN≦28.0V
(△VIN・VOUT) IOUT=5mA , VCE=VIN
△VOUT/ VOUT(T)+2.0V≦VIN≦28.0V
(△VIN・VOUT) IOUT=13mA , VCE=VIN
Input Voltage
VIN
XC6701A
Output Voltage
△VOUT/ IOUT=20mA,
Temperature Characteristics (△Ta・VOUT) VCE=VIN
-40℃≦Ta≦105℃
XC6701B
-40℃≦Ta≦85℃
Power Supply
Rejection Ratio
PSRR
VIN=[VOUT(T)+2.0V]VDC+0.5VP-PAC
IOUT=20mA , f=1kHz , VCE=VIN
Short Current
ISHORT
VIN=VOUT(T)+2.0V , VCE=VIN
CE ”H” Level Voltage
VCEH
VIN=28.0V
CE ”L” Level Voltage
VCEL
VIN=28.0V
CE ”H” Level Current
ICEH VIN=VCE=28.0V
CE ”L” Level Current
ICEL VIN=28.0V, VCE=VSS
Thermal Shutdown
Detect Temperature
TTSD
Junction Temperature
Thermal Shutdown Release
Temperature
TTSR
Junction Temperature
Hysteresis Width
TTSD-TTSR Junction Temperature
150
100
-
-
-
11
11
11
-
-
-
2.0
-
-
-
1.1
0
-0.1
-0.1
-
-
-
E2-0
-
-
50
110
180
E2-1
E3-1
50
60
65
0.01
0.05
0.15
-
±100
50
40
-
-
-
-
150
125
25
V
- mA
- mA
90
175 mV
275
mV
mV
105
115 μA
125
0.10 μA
0.10 %/V
0.30 %/V
28.0 V
- ppm/℃
- dB
- mA
28.0 V
0.35 V
0.1 μA
0.1 μA
-℃
-℃
-℃
①
①
①
①
①
①
②
②
①
①
-
①
③
①
①
①
①
①
①
①
-
NOTE:
*1: VOUT(T): Nominal output voltage
*2: VOUT(E): Effective output voltage
(i.e. the output voltage when “VOUT(T)+2.0V” is provided at the VIN pin while maintaining a certain IOUT value.)
*3: Vdif={VIN1{Note 5} - VOUT1 {Note 4}}
*4: VOUT1: In case of VOUT(T) < 3.0V, the VOUT1 is equal to 98% of the VOUT(T) when a stabilized input voltage is applied in VOUT(T)+3.0V.
: In case of VOUT(T)≧3.0V, the VOUT1 is equal to 98% of the VOUT(T) when a stabilized input voltage is applied in VOUT(T)+2.0V.
*5: VIN1: The input voltage when VOUT1 appears as input voltage is gradually decreased.
*6: Unless otherwise stated, VIN=VOUT(T)+2.0V.
5/35
5 Page 
■ OPERATIONAL EXPLANATION
XC6701
Series
R1
R2
<Output Voltage Control>
The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The
P-channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output
voltage at the VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit, short protect
circuit and thermal protection circuit operate in relation to the level of output current and heat generation. Further, the IC’s
internal circuitry can be shutdown via the CE pin’s signal.
<Short-Circuit Protection>
The XC6701 series includes a current fold-back circuit as a short circuit protection. When the load current reaches the
current limit level, the current fold-back circuit operates and output voltage drops. The output voltage drops further and
output current decreases. When the output pin is shorted, a current of about 30mA flows.
<CE Pin>
The IC’s internal circuitry can be shutdown via the signal from the CE pin with the XC6701A/B series. In shutdown mode,
output at the VOUT pin will be pulled down by R1 and R2 to the VSS level. Note that as the XC6701B series’ operations will
become unstable with the CE pin open. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at
the CE pin. If this IC is used with the correct specifications for the CE pin, the operational logic is fixed and the IC will
operate normally. However, supply current may increase as a result of through current in the IC’s internal circuitry if a
medium voltage is applied.
<Thermal Shutdown>
When the junction temperature of the built-in driver transistor reaches the temperature limit level (150℃ TYP.), the thermal
protection circuit operates and the driver transistor will be set to OFF. The IC resumes its operation when the thermal
shutdown function is released and the IC’s operation is automatically restored because the junction temperature drops to
the level of the thermal shutdown release voltage.
<Minimum Operating Voltage>
For the stable operation of the IC, over 2.0V of input voltage is necessary. The output voltage may not be generated
normally if the input voltage is less than 2.0V.
■ NOTES ON USE
1． For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be
exceeded.
2． Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on output
current. Please strengthen VIN and VSS wiring in particular.
3. Phase compensation inside the IC is performed in the XC6701 series. Therefore, an abnormal oscillation does not occur
even if there is no output capacitor CL. An input capacitor CIN around 0.1μF~1.0μF between the VIN pin and the VSS pin
is required for input stability. Also, the output voltage fluctuation such as under shoot or over shoot, which occurs
because of the load change can be controlled by placing the output capacitor CL around 0.1μF~1.0μF between the VOUT
pin and VSS pin. The input capacitor (CIN) and the output capacitor (CL) should be placed to the IC as close as possible
with a shorter wiring.
4. When the IC is operated with no load, the output voltage may increase in the high temperature beyond operating range.
5. Torex places an importance on improving our products and its reliability.
However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.
11/35
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet XC6701.PDF ] | |
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