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PDF XC6603 Data sheet ( Hoja de datos )
| Número de pieza | XC6603 | |
| Descripción | High Speed LDO Regulator | |
| Fabricantes | Torex Semiconductor | |
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XC6603 Series
ETR03070-001
1A, 0.5V Low Input Voltage, High Speed LDO Regulator
（Adjustable Soft-start time with an external component）
GENERAL DESCRIPTION
The XC6603 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 N-ch
driver transistor, a voltage reference, an error amplifier, a current limiter, a foldback 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 (CL). The inrush current (IRUSH) from VIN to VOUT for charging CL at
start-up can be reduced and makes the VIN stable. Soft-start time can be adjustable with connecting a capacitor to the SS pin.
The inrush current conflicts with the soft-start time, therefore if soft-start is set longer, the inrush current is decreased.
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
(CL) to be discharged via the internal switch. As a result the VOUT pin quickly returns to the VSS level.
The CE pull-down function keeps the IC to be in stand-by mode even if the CE pin is left open.
■APPLICATIONS
Mobile phones / Smart Phones
Digital still cameras / Video cameras
Note PCs / Tablet PCs
E-book Readers
Wireless LAN
TYPICAL APPLICATION CIRCUIT
FEATURES
Maximum Output Current
: 1A (1.3A Limit)
ON Resistance
Bias Voltage Range
: 0.15Ω＠VBIAS=3.6V, VOUT=1.2V
: 2.5V～6.0V
Input Voltage Range
: 0.5V～3.0V
Output Voltage Range
: 0.5V～1.8V (0.1V increments)
Output Voltage Accuracy
Ripple Rejection
Low Power Consumption
Stand-by Current
Under-voltage Lockout
Thermal Shutdown
: ±0.015V＠VOUT＜1.2V
±0.020V＠VOUT≧1.2V
: 60dB＠f=1kHz (VBIAS_PSRR)
75dB＠f=1kHz (VIN_PSRR)
: 100μA (VBIAS), 6.5μA (VIN)＠VOUT=1.2V
: 0.01μA (VBIAS), 0.01μA (VIN)
: 1.8V (VBIAS), 0.4V (VIN)
: 150℃＠detect, 125℃＠release
Protection Circuit
: Foldback Current Limit, TSD, UVLO
Function
: Adjustable Soft-start time with an external component
CE Pull-Down (Active High)
Output Capacitor
CL Auto Discharge
: Ceramic Capacitor Compatible (2.2μF)
Operating Ambient Temperature : -40℃～+85℃
Packages
: USP-6C, SOT-26W
Environmentally Friendly
: EU RoHS Compliant, Pb Free
TYPICAL PERFORMANCE
CHARACTERISTICS
XC6603A121xR-G
VBIAS=3.6V, VCE=0V→3.6V(tr=5μs), VIN=1.5V
IOUT=100mA, CBIAS=CIN=1.0μF, CL=2.2μF, Ta=25℃
44
CE Input Voltage
23
02
Output Voltage
-2 1
-4 0
-6
Time (1ms/div)
-1
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1 page  
www.DataSheet.co.kr
XC6603
Series
■ELECTRICAL CHARACTERISTICS
PARAMETER
Bias Voltage
Input Voltage
Output Voltage
Maximum Output Current (*3)
Load Regulation
Dropout Voltage
Supply Current 1 (*6)
Supply Current 2
Stand-by Current 1
Stand-by Current 2
Bias Line Regulation
Input Line Regulation
Bias UVLO Voltage
Bias UVLO Release Voltage
Input UVLO Voltage
Input UVLO Release Voltage
Output Voltage
Temperature Characteristics
Bias Ripple Rejection Ratio
Input Ripple Rejection Ratio
Current Limit (*3)
Short - Circuit Current
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release Temperature
Thermal Shutdown
Hysteresis Width
CL Auto-Discharge Resistance
CE "H" Level Voltage
CE "L" Level Voltage
CE "H" Level Current
CE "L" Level Current
SS Pin Current
Soft-Start
Threshold Voltage (*7)
SYMBOL
VBIAS
VIN
V (*1)
OUT(E)
IOUTMAX
ΔVOUT
Vdif (*4)
IBIAS
IIN
IBIAS_STB
IIN_STB
ΔVOUT/
(ΔVBIAS・VOUT）
ΔVOUT/
(ΔVIN・VOUT）
VBIAS_UVLOD
VBIAS_UVLOR
VIN_UVLOD
VIN_UVLOR
ΔVOUT/
(ΔTopr・VOUT）
VBIAS_PSRR
VIN_PSRR
ILIM
ISHORT
TTSD
CONDITIONS
IOUT=100mA
VOUT(T)＜1.2V
VOUT(T)≧1.2V
VOUT（T)＜1.2V, VBIAS=VCE=2.5V
VOUT（T)≧1.2V, VBIAS=VCE=VOUT(T)+1.3V
1mA≦IOUT≦1A
IOUT=1A
IOUT=0A
IOUT=0A
VOUT(T)＜1.2V
VOUT(T)≧1.2V
VBIAS=6.0V, VIN=3.0V, VCE=VSS
VBIAS=6.0V, VIN=3.0V, VCE=VSS
VOUT(T)＜1.2V, VCE=VBIAS, 2.5V≦VBIAS≦6.0V
VOUT（T)≧1.2V, VCE=VBIAS, VOUT(T)+1.3V≦VBIAS≦6.0V
VOUT（T)+0.1V≦VIN≦3.0V
IOUT=100mA
-40℃≦Topr≦85℃
VBIAS=VCE=3.6VDC+0.2Vp-pAC
IOUT=100mA, f=1kHz, CBIAS=OPEN
VIN=VOUT(T)+0.3VDC+0.2Vp-pAC
IOUT=100mA, f=1kHz, CIN=OPEN
VOUT={VOUT@IOUT=1A}×0.95
VOUT=VSS
Junction Temperature
TTSR
Junction Temperature
TTSD-TTSR
RDCHG
VCEH
VCEL
ICEH
ICEL
Isoft
Vsoft
Junction Temperature
VCE=VSS, VOUT=VOUT(T)
VBIAS=VCE=6.0V
VBIAS=6.0V,VCE=VSS
SS Pin=VSS
MIN.
2.5
0.5
-0.015
-0.020
TYP.
-
-
V (*2)
OUT(T)
MAX.
6.0
3.0
+0.015
+0.020
UNITS
V
V
V
Ta=25
CIRCUIT
①
①
①
1.0 -
-A ①
- 37 68 mV
-
E-1 (*5)
mV
76 100 143 μA
0.1 - 8.7
μA
3.9 - 14.2
- 0.01 0.10 μA
- 0.01 0.15 μA
- 0.01 0.10 %/V
①
①
②
②
②
②
①
- 0.01 0.10 %/V
VSS - 1.28 V
2.5 - 6.0 V
VSS - 0.23 V
0.5 - 3.0 V
- ±30 - ppm/℃
- 60 - dB
- 75
1.0 1.3
- 90
- 150
- dB
-A
- mA
-℃
- 125 - ℃
-
130
0.65
VSS
3.2
-0.1
3.60
(0.927)
25
190
-
-
6.0
-
5.00
(1.085)
-
255
6.00
0.41
10.6
0.1
6.55
(1.243)
℃
Ω
V
V
A
A
A
V
①
①
①
①
①
①
③
③
①
①
①
①
①
①
④
④
④
④
⑤
-
NOTE:
Unless otherwise stated, VBIAS=VCE=3.6V, VIN=VOUT(T)+0.3V, IOUT=1mA, CBIAS=CIN=1.0μF, CL=2.2μF, SS Pin=OPEN
(*1) VOUT(E) = Effective output voltage
(*2) VOUT(T) = Nominal output voltage
(*3) Mount conditions affect heat dissipation. Maximum output current is not guaranteed when TSD starts to operate earlier.
(*4) Vdif＝{VIN1－VOUT1}
VIN1 is an input voltage when VOUT1 appears at the output during decreasing input voltage gradually.
VOUT1 is a voltage equal to 98% of the output voltage where VBIAS=VCE=3.6 and VIN=VOUT(T)+0.3V at IOUT=1A is input to the VIN pin.
(*5) Please refer to the table E-1 named DROPOUT VOLTAGE CHART
(*6) Supply current 1 (IBIAS) may be fluctuated because that some bias current flows into the output.
(*7) Design value
5/29
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5 Page 
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■NOTES ON USE
XC6603
Series
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 noise and/or phase lag depending on output current. Please keep
the resistance low for the VBIAS, VIN and VSS wiring in particular.
3. Please wire the CBIAS, CIN and CL as close to the IC as possible.
4. Capacitances of these capacitors (CBIAS, CIN, CL) are decreased by the influences of bias voltage and ambient temperature. Care shall be
taken for capacitor selection to ensure stability of phase compensation from the point of ESR influence.
5. When it is used in a quite small input / output dropout voltage, output may go into unstable operation. Please test it thoroughly before using
it in production.
6. Torex places an importance on improving our products and their reliability.
We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in their systems.
11/29
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| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet XC6603.PDF ] | |
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