XC6225A292NL-G [TOREX]
Regulator;
| 型号： | XC6225A292NL-G |
| 厂家： | 
Torex Semiconductor |
| 描述： | Regulator |
| 文件： | 总15页 (文件大小：252K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XC6225Series
ETR0342-002
30mA High Speed LDO Regulator
■GENERAL DESCRIPTION
The XC6225 series is a high accuracy, low noise, and low dropout CMOS LDO regulator. The series includes a
reference voltage source, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit.
The CE function enables the entire circuit to be turned off by a low level input signal to the CE pin. In this stand-by
state, the XC6225B series can discharge the electric charge stored at the output capacitor through the internal
auto-discharge switch, and as a result the VOUT pin quickly returns to the VSS level. The output stabilization capacitor
(CL) is also compatible with low ESR ceramic capacitors. Output voltage is selectable in 0.05V increments within a
range of 0.8V~5.0V. The current limit fold-back circuit works as a short circuit protection as well as the output current
limiter. The series achieves a fast response with only 25μA of low power consumption. The current limit is set to
50mA (TYP.) so that the device is optimized to protect the circuit from over-current. It is ideally suited for applications
requiring 30 mA or less.
A small USP-4 package makes high density mounting possible.
■FEATURES
Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
Accuracy
■APPLICATIONS
● Cellular phones
● Cordless phones,
Wireless communication equipment
● Portable games
● Cameras, VCRs
● Portable AV equipment
● PDAs
: 30mA <50mA (TYP.) Limit>
: 70mV@ IOUT=30mA, VOUT=3.2V
: 2.5V ~ 6.0V
: 0.8V~5.0V (0.05V increments)
: +2% (VOUT>1.5V)
+0.03V (VOUT≦1.45V)
: 25μA (TYP.)
: Less than 0.1μA
Low Power Consumption
Stand-by Current
High Ripple Rejection
Operating Temperature
Range
: 70dB @ 1kHz
: -40℃~+85℃
Output Capacitor
: 1.0μF ceramic capacitor
CL High-Speed Auto-Discharge (XC6225B)
Low Output Noise
Packages
: USP-4, SOT-25
SSOT-24 (under development)
■TYPICAL APPLICATION CIRCUIT
1/15
XC6225 Series
■PIN CONFIGURATION
(under development)
*The heat sink pad of the USP-4 is recommended
to be soldered to enhance the strength. Please
refer to the reference mount pattern and metal
mask pattern. This pad should be electrically
opened or connected to the VSS (No.2) pin.
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
USP-4
SOT-25
SSOT-24
4
1
2
3
-
1
5
2
3
4
4
3
2
1
-
VIN
VOUT
VSS
CE
Power Input
Output
Ground
ON/OFF Control
No Connection
NC
*SSOT-24 is under development.
2/15
XC6225
Series
■PRODUCT CLASSIFICATION
●Ordering Information
(*1)
XC6225①②③④⑤⑥-⑦
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
CE High Active, Without CL discharge function
CE High Active, With CL discharge function
e.g. 3.0V → ①=3, ②=0
A
B
①
Type of Regulator
② ③
Output Voltage
08～50
Output voltage is { x.x0V } (the 2nd decimal place is “0”)
2% (VOUT(T)≧1.5V), Within ±0.03V (VOUT(T)≦1.40V)
2
Output Voltage
Accuracy
④
Output voltage is { x.x5V } (the 2nd decimal place is “5”)
±2% (VOUT≧1.55V), Within ±0.03V (VOUT≦1.45V)
A
GR-G
MR-G
NR-G
USP-4 (Halogen & Antimony free)
Packages
Taping Type (*2)
⑤⑥-⑦
SOT-25 (Halogen & Antimony free)
SSOT-24 (Halogen & Antimony free) under development
(*1)
The ”-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
The device orientation is fixed in its embossed tape pocket.
(*2)
For reverse orientation, please contact your local Torex sales office or representative.
(Standard orientation: ⑤R-⑦, Reverse orientation: ⑤L-⑦)
3/15
XC6225 Series
■BLOCK DIAGRAMS
●XC6225B Series
●XC6225A Series
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
■ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER
SYMBOL
RATINGS
VSS-0.3～+6.5
400 (*1)
UNITS
Input Voltage
VIN
V
mA
V
Output Current
Output Voltage
CE Input Voltage
IOUT
VOUT
VCE
VSS-0.3～VIN+0.3
VSS-0.3～+6.5
120
V
USP-4
Power Dissipation
Pd
mW
SOT-25
250
SSOT-24
150
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-40～+85
-55～+125
℃
℃
(*1)
I
≦ Pd / (VIN-VOUT)
OUT
*SSOT-24 is under development.
4/15
XC6225
Series
■ELECTRICAL CHARACTERISTICS
●XC6225A/B Series
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
OUT(T)≧1.50V
UNITS CIRCUIT
MIN.
TYP.
MAX.
×1.02
V
V
×0.98
*3
*3
（ ）
（
）
CE=VIN, IOUT=10mA
VOUT(E)
VOUT(T)
Output Voltage
V
①
(*2)
*4
）
（
V
OUT(T)≦1.45V
-0.03
+0.03
*3
*3
（
）
（
）
VCE=VIN, IOUT=10mA
VCE=VIN
VIN= VOUT(T)+1.0V
1.5V≦VOUT(T)≦5.0V
VCE=VIN
VIN=2.5V
0.8V≦VOUT(T)≦1.45V
Output Current
IOUTMAX
30
-
50
5
-
mA
mV
①
①
VCE=VIN
Load Regulation
ΔVOUT
12
0.1mA≦IOUT≦30mA
DROPOUT VOLTAGE
CHART
Dropout Voltage (*5)
Supply Current
Vdif
ISS
IOUT=30mA, VCE=VIN
mV
μA
μA
①
②
②
VIN=VOUT+1.0V, IOUT=0ｍA
-
-
25
50
Stand-by Current
ISTBY
VIN=6.0V, VCE=VSS
0.01
0.1
VOUT(T)+0.5V≦VIN≦6.0V
VOUT(T)≧2.0V,
V
CE=VIN, IOUT=10mA
ΔVOUT
(ΔVIN・VOUT
/
Line Regulation
Input Voltage
-
0.01
0.20
%/V
V
①
)
2.5V≦VIN≦6.0V
VOUT(T)≦1.95V
VCE=VIN, IOUT=10mA
VIN
2.5
-
-
6.0
-
①
①
Output Voltage
Temperature
Characteristics
ΔVOUT
(ΔTa・VOUT
/
VCE=VIN, IOUT=30mA
-40℃≦Ta≦85℃
±100
ppm/℃
)
5/15
XC6225 Series
■ELECTRICAL CHARACTERISTICS (Continued)
Ta=25℃
●XC6225A/B Series (Continued)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
60
MAX. UNITS CIRCUIT
VIN=5.75VDC+0.5Vp-pAC
5.0V≧VOUT(T)≧4.8V
CE=VIN, IOUT=30mA, f=1kHz
V
-
-
VIN=｛VOUT(T)+1.0｝VDC+0.5Vp-pAC
4.75V≧VOUT(T)≧4.05V
Ripple Rejection
Rate
V
CE=VIN, IOUT=30mA, f=1kHz
VIN= VOUT(T)+1.0 VDC+0.5Vp-pAC
4.0V≧VOUT(T)≧1.75V
CE=VIN, IOUT=30mA, f=1kHz
PSRR
dB
③
｛
｝
V
-
70
-
VIN=2.75VDC+0.5Vp-pAC
1.7V≧VOUT(T)≧0.8V
VCE=VIN, IOUT=30mA, f=1kHz
VIN=6.0V, VCE=VIN
5.0V≧VOUT(T)≧0.8V
Limit Current1(*9)
ILIM1
30
30
50
50
70
70
VIN=VOUT(T)+1.0V, VCE=VIN
5.0V≧VOUT(T)≧1.5V
Limit Current2(*9, *10)
ILIM 2
VIN=2.5V
mA
mA
①
①
1.45V≧VOUT(T)≧0.8V
VIN=VOUT(T)+0.1V
5.0V≧VOUT(T)≧2.4V
VIN=2.5V
Limit Current3(*9, *10)
Short Current
ILIM 3
-
-
50
15
70
-
2.35V≧VOUT(T)≧1.55V
VCE=VIN
ISHORT
VOUT is short-circuited at the VSS level
CE High Level
Voltage
VCEH
VCEL
ICEH
1.2
-
-
-
-
6.0
0.3
0.1
V
V
④
④
CE Low Level Voltage
CE High Level
Current
VCE=VIN
-0.1
μA
④
④
①
CE Low Level Current
ICEL
VCE=VSS
-0.1
-
-
0.1
-
μA
CL Auto-Discharge
Resistance (*8)
RDCHG
VIN=6.0V, VOUT=4.0V, VCE= VSS
780
Ω
NOTE:
* 1: Unless otherwise stated regarding input voltage conditions, 1.5V≦VOUT(T)≦5.0V is VIN=VOUT(T)＋1.0V, and 0.8V≦VOUT(T)≦1.45V is VIN=2.5V.
* 2: VOUT (E) = Effective output voltage (Refer to the voltage chart)
(I.e. the output voltage when stabilized "VOUT (T) ＋1.0V" is provided at the VIN pin while maintaining a certain IOUT value.)
* 3: The output voltage VOUT (E) is shown in the voltage chart.
* 4: VOUT (T) = Nominal output voltage
* 5: Vdif ={VIN1(*7)-VOUT1(*6)
}
* 6: VOUT1=A voltage equal to 98% of the output voltage when an amply stabilized {VOUT (T) +1.0V} is input.
* 7: VIN1= The input voltage when VOUT1 appears at the VOUT pin while input voltage is gradually decreased.
* 8: For the XC6225B series only. The XC6225A series discharges by using the two resistors R1 and R2 shown in the block diagram.
*9: Limit current is defined as the output current when VOUT(E) x 0.95 is impressed at the VOUT pin.
*10: The device may not satisfy the specification values when it is used with the input voltages lower than the conditions of ILIM2(1.45V≧VOUT(T)≧0.8V) and ILIM3
.
6/15
XC6225
Series
■OUTPUT VOLTAGE CHART
●Voltage Table1
NOMINAL
OUTPUT
VOLTAGE
(V)
DROPOUT VOLTAGE
OUTPUT VOLTAGE
±2% (V)
Vdif
(mV)
Vdif
VOUT(E)
VOUT(T)
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
MIN.
MAX.
TYP.
325
MAX.
1700
1650
1600
1550
1500
1450
1400
1350
1300
1250
1200
1150
1100
1050
1000
950
0.7700
0.8200
0.8700
0.9200
0.9700
1.0200
1.0700
1.1200
1.1700
1.2200
1.2700
1.3200
1.3700
1.4200
1.4700
1.5190
1.5680
1.6170
1.6660
1.7150
1.7640
1.8130
1.8620
1.9110
1.9600
2.0090
2.0580
2.1070
2.1560
2.2050
2.2540
2.3030
2.3520
2.4010
2.4500
2.4990
2.5480
2.5970
2.6460
2.6950
2.7440
2.7930
2.8420
2.8910
0.8300
0.8800
0.9300
0.9800
1.0300
1.0800
1.1300
1.1800
1.2300
1.2800
1.3300
1.3800
1.4300
1.4800
1.5300
1.5810
1.6320
1.6830
1.7340
1.7850
1.8360
1.8870
1.9380
1.9890
2.0400
2.0910
2.1420
2.1930
2.2440
2.2950
2.3460
2.3970
2.4480
2.4990
2.5500
2.6010
2.6520
2.7030
2.7540
2.8050
2.8560
2.9070
2.9580
3.0090
235
160
115
85
50
900
850
800
750
700
650
600
550
500
450
400
40
350
300
250
200
150
120
70
7/15
XC6225 Series
■OUTPUT VOLTAGE CHART (Continued)
●Voltage Table2
NOMINAL
OUTPUT
VOLTAGE
(V)
DROPOUT VOLTAGE
OUTPUT VOLTAGE
±2% (V)
Vdif
(mV)
Vdif
VOUT(E)
VOUT(T)
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
4.50
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
MIN.
MAX.
TYP.
70
MAX.
120
2.9400
2.9890
3.0380
3.0870
3.1360
3.1850
3.2340
3.2830
3.3320
3.3810
3.4300
3.4790
3.5280
3.5770
3.6260
3.6750
3.7240
3.7730
3.8220
3.8710
3.9200
3.9690
4.0180
4.0670
4.1160
4.1650
4.2140
4.2630
4.3120
4.3610
4.4100
4.4590
4.5080
4.5570
4.6060
4.6550
4.7040
4.7530
4.8020
4.8510
4.9000
3.0600
3.1110
3.1620
3.2130
3.2640
3.3150
3.3660
3.4170
3.4680
3.5190
3.5700
3.6210
3.6720
3.7230
3.7740
3.8250
3.8760
3.9270
3.9780
4.0290
4.0800
4.1310
4.1820
4.2330
4.2840
4.3350
4.3860
4.4370
4.4880
4.5390
4.5900
4.6410
4.6920
4.7430
4.7940
4.8450
4.8960
4.9470
4.9980
5.0490
5.1000
95
170
8/15
XC6225
Series
■OPERATIONAL EXPLANATION
The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-channel
MOSFET 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 and short-circuit protection circuit operate in
relation to the level of output current. Further, the IC’s entire circuitry is turned off by the input signal to the CE pin.
●BLOCK DIAGRAM
ON/OFF
Control
IN
V
CE
-
+
Error
Amp
Current
Limit
CE
CE/
each
OUT
V
circuit
R1
Rdischg
CE/
R2
Voltage
SS
V
Reference
<Input and Output Capacitors>
The XC6225 needs an output capacitor CL for phase compensation. Values required for the phase compensation are shown in
the chart below. If a loss of the capacitance happens, the stable phase compensation may not be obtained. Please ensure to
use a capacitor which does not depend on bias or temperature too much. For a stable power input, please connect an input
capacitor CIN of 1.0μF between the VIN pin and the VSS pin.
OUTPUT VOLTAGE
0.8V～1.15V
1.2V～1.35V
1.4V～4.0V
OUTPUT CAPACITOR
CL=4.7μF
CL=2.2μF
CL=1.0μF
4.05V～5.0V
CL=2.2μF
<CL Auto-Discharge Function>
XC6225B series can discharge the electric charge in the output capacitor (CL), when a low signal to the CE pin, which enables
the whole IC circuit to be turned off, is inputted via the N-channel transistor located between the VOUT pin and the VSS pin (refer
to BLOCK DIAGRAM). The CL auto-discharge resistance value is set at 780Ω(VOUT=4.0V @ VIN=6.0V at TYP.). The discharge
time of the output capacitor (CL) is set by the CL auto-discharge resistance (R) and the output capacitor (CL). By setting the time
constant of the CL auto-discharge resistance value [RDCHG] and the output capacitor value (CL) as τ(τ=C x RDCHG), the output
voltage after discharge via the N-channel transistor is calculated by the following formula.
V= VOUT(E) ×e-t / τ or ｔ= τln（V/ VOUT(E)
）
Where
V: Output voltage after discharge
VOUT (E) : Output voltage
t : Discharge time,
τ: CL auto-discharge resistance RDCHG ×Output capacitor （CL）value C
9/15
XC6225 Series
■OPERATIONAL EXPLANATION (Continued)
<Current Limiter, Short-Circuit Protection>
The XC6225 series’ fold-back circuit operates as an output current limiter and a short protection circuit for the output pin. When
the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. When the output
pin is short-circuited to the VSS pin, the current falls and reaches about 15mA.
<CE Pin>
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6225 series. In the shutdown state, output
at the VOUT pin will be pulled down to the VSS level via R1 & R2. However, with the XC6225B series, the CL auto-discharge
resistor is connected in parallel to R1 and R2 while the power supply is applied to the VIN pin. Therefore, time until the VOUT pin
reaches the VSS level is shorter.
The output voltage is in an undefined state when the CE pin is left open. If this IC is used with the correct voltage for the CE pin,
the logic is fixed and the IC will operate normally. However, the supply current may increase as a result of shoot-through current
in the IC's internal circuitry when a medium voltage is input.
■NOTES ON USE
1. Please use this IC within the stated absolute maximum ratings. 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 wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
10/15
XC6225
Series
■TEST CIRCUITS
●Circuit①: Output Voltage, Output Current, Dropout Voltage, Line Regulation, Load Regulation, Current Limit,
Short Current, CL Discharge Resistance
●Circuit②: Supply Current, Stand-byCurrent
●Circuit③: Ripple Rejection Rate
11/15
XC6225 Series
■TEST CIRCUITS (Continued)
●Circuit④:CE“High”“Low”LevelVoltage,CE“High”“Low” Level Current
12/15
XC6225
Series
■PACKAGING INFORMATION
●USP-4 (unit: mm)
●SOT-25 (unit: mm)
●SSOT-24 (unit: mm)
(under development)
13/15
XC6225 Series
■PACKAGING INFORMATION (Continued)
●USP-4 Reference Metal Mask Design
●USP-4ReferencePattern Layout
1.0
0.8
0.35
0.35
0.35
0.35
4
3
4
3
0.3
1
2
1
2
0.6
0.6
14/15
XC6225
Series
1. The products and product specifications contained herein are subject to change without
notice to improve performance characteristics. Consult us, or our representatives
before use, to confirm that the information in this datasheet is up to date.
2. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
15/15
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