ETR0328_004
■GENERAL DESCRIPTION
The XC6221 series are precise, low noise, high speed, low dropout regulators. They are fabricated using Torex’s CMOS
process. Performance features of the series include high ripple rejection and low dropout voltage, and the series include a
reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit.
The CE function enables the circuit to be in stand-by mode by inputing L level signal. In the stand-by mode, the series
enables the electric charge at the output capacitor (CL) to be discharged via the internal auto-discharge resistance, and as a
result the VOUT pin quickly returns to the VSS level. The series' output stabilization capacitor (CL) is also compatible with low
ESR ceramic capacitors.
Output voltage is selectable in 50mV increments within a range of 0.8V~4.0V, using laser trimming technologies.
The current limiter's foldback circuit also operates as a short circuit protection for the output current limiter and the output
pin. The series achieves a great response with only 25μA of low power consumption. Also the series has low dropout
voltage characteristics, which is 80mA at IOUT=100mA and VOUT(T)=3.0V.
With the use of ultra small package, USP-4 package, a small footprint circuit can be designed.
■APPLICATIONS
●Cellular phones
■FEATURES
Output Current
Dropout Voltage
●Cordless phones
●Wireless communication equipment
Operating Voltage Range
Output Voltage
Setting Range Accuracy
●Portable games
●Cameras, VCRs
●Portable AV equipment
●PDAs
Low Power Consumption
Stand-by Current
High Ripple Rejection
Operating Temperature
Range
Low ESR Capacitor
: 200mA <Up to 250mA (TYP.)>
: 80mV@ IOUT=100mA,
VOUT(T)=3.0V
: 1.6V ~ 6.0V
: 0.8V~4.0V (50mV increments)
: +2% (VOUT >1.5V)
(+1% Possible)
+30mV (VOUT≦1.45V)
(+20mV Possible)
: 25μA (TYP.)
: Less than 0.1μA
: 70dB @ 1kHz
: -40℃~85℃
: 1.0μF ceramic capacitor
compatible
CMOS
CL High-Speed Auto-Discharge (XC6221B)
Low Output Noise
Ultra Small Packages
: USP-4, SOT-25, SSOT-24
■ TYPICAL PERFORMANCE
CHARACTERISTICS
●Load Transient Response
1.9
XC6221x182
V IN=CE=2.8V, Tr=Tf=5us
Topr=25℃, CIN=CL=1uF (ceramic)
300
1.8
250
1.7
200
1.6
150
Output Current
1.5
100
1.4
50
1.3
Output Current: O
I UT (mA)
Output Voltage
Output Voltage: V OUT (V)
■TYPICAL APPLICATION CIRCUIT
0
Time (500us/div)
1/23
XC6221 Series
■PIN CONFIGURATION
SOT-25
(TOP VIEW)
USP-4
(BOTTOM VIEW)
SSOT-24
(TOP VIEW)
*The heat dissipation pad of the USP-4 package is
recommended to solder as the recommended
mount pattern and metal mask pattern for mounting
strength.
The mount pattern should be electrically
opened or connected to the VSS (#2) pin.
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
4
VIN
Power Input
5
3
VOUT
Output
2
2
2
VSS
Ground
3
3
1
CE
ON/OFF Control
-
4
-
NC
No Connection
USP-4
SOT-25
SSOT-24
4
1
1
2/23
XC6221
Series
■PRODUCT CLASSIFICATION
●Ordering Information
XC6221 ①②③④⑤⑥
DESIGNATOR
DESCRIPTION
①
Type of Regulator
②
③
Output Voltage
SYMBOL
A
: CE High Active, no CL discharge resistor
B
: CE High Active, with CL discharge resistor
08 ~ 40
G
M
: SOT-25
N
: SSOT-24
R
: Embossed tape, standard feed
L
: Embossed tape, reverse feed
A
Output Accuracy
1
B
⑤
⑥
Packages
Device Orientation
: ex.) VOUT(T) = 3.0V → ② = 3, ③ = 0
: 100mV increments,
When 0.8V≦VOUT(T)≦1.40V: VOUT(T)+30mV
ex.) 0.8V → ②=0, ③=8, ④=2
: 100mV increments,
When VOUT(T)>1.5V: +2%
ex.) 1.5V → ②=1, ③=5, ④=2
: 50mV increments,
When 0.85V≦VOUT(T)≦1.45V: VOUT(T)+30mV
ex.) 0.85V → ②=0, ③=8, ④=A
: 50mV increments,
When VOUT(T)>1.55V: +2%
ex.) 1.55V → ②=1, ③=5, ④=A
: 100mV increments,
When 0.8V≦VOUT(T)≦1.90V: VOUT(T)+20mV
ex.) 0.8V → ②=0, ③=8, ④=1
: 100mV increments,
When VOUT(T)>2.0V: +1%
ex.) 2.0V → ②=2, ③=0, ④=1
: 50mV increments,
When 0.85V≦VOUT(T)≦1.95V: VOUT(T)+20mV
ex.) 0.85V → ②=0, ③=8, ④=B
: 50mV increments,
When VOUT(T)>2.0V: +1%
ex.) 2.05V → ②=2, ③=0, ④=B
: USP-4
2
④
DESCRIPTION
3/23
XC6221 Series
■BLOCK DIAGRAMS
●XC6221A Series
●XC6221B Series
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-4
SOT-25
SSOT-24
Operating Temperature Range
Storage Temperature Range
Power Dissipation
*1: IOUT=Less than Pd / (VIN-VOUT)
4/23
SYMBOL
VIN
IOUT
VOUT
VCE
Pd
Topr
Tstg
RATINGS
VSS -0.3 ~ +6.5
400(*1)
VSS – 0.3 ~ VIN + 0.3
VSS – 0.3 ~ +6.5
120
250
150
- 40 ~ + 85
- 55 ~ +125
Ta=25℃
UNITS
V
mA
V
V
mW
℃
℃
XC6221
Series
■ELECTRICAL CHARACTERISTICS
●XC6221A/B series
Ta=25℃
PARAMETER
SYMBOL
Output Voltage
(Standard)
VOUT(E)
VOUT(T)>1.5V, VCE=VIN, IOUT=10mA
(* 2)
VOUT<1.45V, VCE=VIN, IOUT=10mA
Output Voltage
(High Accuracy)
VOUT(E)
Output Current
IOUTMAX
Load Regulation
CONDITIONS
VOUT(T)>2.0V, VCE=VIN, IOUT=10mA
(* 2)
VOUT(T)<1.95V, VCE=VIN, IOUT=10mA
VOUT
VCE=VIN, VIN=VOUT(T)+1.0V,
0.8V<VOUT(T)<4.0V
VCE=VIN,
0.1mA≦IOUT≦100mA
MIN.
TYP.
-0.03
VOUT(T)
(*4)
(*3)
(*3)
+0.03
V
1
V
1
(*3)
x 1.01
x 0.99
(*3)
UNITS CIRCUIT
x 1.02
x 0.98
(*3)
MAX.
VOUT(T)
(*3)
-0.02
(*4)
200
250
-
mA
1
-
10
40
mV
1
mV
1
(*3)
+0.02
(*3)
Dropout Voltage (*5)
Vdif
VCE=VIN, IOUT=100mA
Supply Current
ISS
VIN=VOUT+1.0V, IOUT=0mA
-
25
50
μA
2
Standby Current
ISTBY
VIN=6.0V, VCE=VSS
-
0.01
0.10
μA
2
-
0.01
0.20
%/V
1
1.6
-
6.0
V
1
-
±100
-
ppm/℃
1
-
70
-
dB
3
Line Regulation
Input Voltage
Output Voltage
Temperature Characteristics
Ripple Rejection Rate
VOUT(T)+0.5V≦VIN≦6.0V
VOUT
VOUT(T)≧1.1V, VCE=VIN, IOUT=10mA
VIN･VOUT
1.6V≦VIN≦6.0V
VOUT(T)≦1.05V, VCE=VIN, IOUT=10mA
VIN
VCE=VIN,
VOUT
Ta･VOUT
IOUT=30mA, -40℃<Ta<85℃
VIN={VOUT(T)+1.0}VDC+0.5Vp-pAC,
VOUT(T)≧0.85V,
VCE=VIN, IOUT=30mA, f=1kHz
PSRR
VIN=1.85VDC+0.5Vp-pAC,
VOUT(T)≦0.8V,
VCE=VIN, IOUT=30mA, f=1kHz
E-2
Limit Current
Ilim
VCE=VIN
200
250
-
mA
1
Short Current
Ishort
VCE=VIN, VOUT is short-circuited at the
VSS level
-
30
-
mA
1
CE High Level Voltage
VCEH
1.2
-
6.0
V
4
-
-
0.3
V
4
-0.1
-
0.1
μA
4
μA
4
Ω
1
CE Low Level Voltage
VCEL
CE High Level Current
ICEH
VCE=VIN
CE Low Level Current
CL Auto-Discharge
Resistance (* 8)
ICEL
VCE=VSS
Rdischg
VIN=6.0V, VOUT(T)=4.0V, VCE=VSS
-0.1
-
780
-
NOTE:
* 1: Unless otherwise stated regarding input voltage conditions, VIN=VOUT(T)＋1.0V.
* 2: VOUT(E) = Effective output voltage (Refer to the voltage chart E-0 and E-1)
(I.e. the output voltage when HS mode and an amply stabilized "VOUT(T)＋1.0V" is provided at the VIN pin while maintaining a certain
IOUT value.)
* 3: The rated value of the setting output voltage VOUT(E) is shown in voltage chart E-0 and E-1.
* 4: VOUT (T) = Specified output voltage
(*7)
(*6)
* 5: Vdif={VIN1 -VOUT1 }
* 6: VOUT1=A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input in the HS mode.
* 7: VIN1=The input voltage when VOUT1 appears as input voltage is gradually decreased.
* 8: For the XC6221B series only. The XC6221A series discharges by resistors R1 and R2 only as shown in the block diagrams.
5/23
XC6221 Series
■OUTPUT VOLTAGE CHART
SYMBOL
SETTING
OUTPUT
VOLTAGE
(V)
VOUT(T)
E-0
E-1
E-2
OUTPUT VOLTAGE
Standard +2% (V)
OUTPUT VOLTAGE
High Accuracy +1% (V)
DROPOUT VOLTAGE
Vdif
(mV)
VOUT(E)
VOUT(E)
Vdif
MIN.
MAX.
MIN.
MAX.
0.80
0.7700
0.8300
0.7800
0.8200
0.85
0.8200
0.8800
0.8300
0.8700
0.90
0.8700
0.9300
0.8800
0.9200
0.95
0.9200
0.9800
0.9300
0.9700
1.00
0.9700
1.0300
0.9800
1.0200
1.05
1.0200
1.0800
1.0300
1.0700
1.10
1.0700
1.1300
1.0800
1.1200
1.15
1.1200
1.1800
1.1300
1.1700
1.20
1.1700
1.2300
1.1800
1.2200
1.25
1.2200
1.2800
1.2300
1.2700
1.30
1.2700
1.3300
1.2800
1.3200
1.35
1.3200
1.3800
1.3300
1.3700
1.40
1.3700
1.4300
1.3800
1.4200
1.45
1.4200
1.4800
1.4300
1.4700
1.50
1.4700
1.5300
1.4800
1.5200
1.55
1.5200
1.5800
1.5300
1.5700
1.60
1.5700
1.6300
1.5800
1.6200
1.65
1.6200
1.6800
1.6300
1.6700
1.70
1.6700
1.7300
1.6800
1.7200
1.75
1.7200
1.7800
1.7300
1.770
1.80
1.7700
1.8300
1.7800
1.8200
1.85
1.8200
1.8800
1.8300
1.8700
1.90
1.8700
1.9300
1.8800
1.9200
1.95
1.9200
1.9800
1.9300
1.9700
2.00
1.9600
2.0400
1.9800
2.0200
2.05
2.0090
2.0910
2.0295
2.0705
2.10
2.0850
2.1420
2.0790
2.1210
2.15
2.1070
2.1930
2.1285
2.1715
2.20
2.1560
2.2440
2.1780
2.2220
2.25
2.2050
2.2950
2.2275
2.2725
2.30
2.2540
2.3460
2.2770
2.3230
2.35
2.3030
2.3970
2.3265
2.3735
2.40
2.3520
2.4480
2.3760
2.4240
2.45
2.4010
2.4990
2.4255
2.4745
2.50
2.4500
2.5500
2.4750
2.5250
2.55
2.4990
2.6010
2.5245
2.5755
2.60
2.5480
2.6520
2.5740
2.6260
2.65
2.5970
2.7030
2.6235
2.6765
2.70
2.6460
2.7540
2.6730
2.7270
2.75
2.6950
2.8050
2.7225
2.7775
2.80
2.7440
2.8560
2.7720
2.8280
2.85
2.7930
2.9070
2.8215
2.8785
2.90
2.8420
2.9580
2.8710
2.9290
2.95
2.8910
3.0090
2.9205
2.9795
6/23
TYP.
MAX.
500
850
410
750
330
650
230
410
200
360
160
290
160
250
125
210
115
195
95
170
XC6221
Series
■OUTPUT VOLTAGE CHART (Continued)
SYMBOL
SETTING
OUTPUT
VOLTAGE
(V)
VOUT(T)
E-0
E-1
E-2
OUTPUT VOLTAGE
Standard +2% (V)
OUTPUT VOLTAGE
High Accuracy +1% (V)
DROPOUT VOLTAGE
Vdif
(mV)
VOUT(E)
VOUT(E)
Vdif
MIN.
MAX.
MIN.
MAX.
3.00
2.9400
3.0600
2.9700
3.0300
3.05
2.8990
3.1100
3.0195
3.0805
3.10
3.0380
3.1620
3.0690
3.1310
3.15
3.0870
3.2130
3.1185
3.1815
3.20
3.1360
3.2640
3.1680
3.2320
3.25
3.1850
3.3150
3.2175
3.2825
3.30
3.2340
3.3660
3.2670
3.3330
3.35
3.2830
3.4170
3.3165
3.3835
3.40
3.3320
3.4680
3.3660
3.4340
3.45
3.3810
3.5190
3.4155
3.4845
3.50
3.4300
3.5700
3.4650
3.5350
3.55
3.4790
3.6210
3.5145
3.5855
3.60
3.5280
3.6720
3.5640
3.6360
3.65
3.5770
3.7230
3.6135
3.6855
3.70
3.6260
3.7740
3.6630
3.7370
3.75
3.6750
3.8250
3.7125
3.7875
3.80
3.7240
3.8760
3.7620
3.8380
3.85
3.7730
3.9270
3.8115
3.8885
3.90
3.8220
3.9780
3.8610
3.9390
3.95
3.8710
4.0290
3.9105
3.9895
4.00
3.9200
4.0800
3.9600
4.0400
TYP.
MAX.
80
140
7/23
XC6221 Series
■OPERATIONAL EXPLANATION
<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 & stabilized by a system of negative feedback. The current limit circuit and short
protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the
CE pin's signal.
ON/OFF
Control
CE
V IN
CE
CE/
Error
Amp
Current
Limit
+
each
circuit
V OUT
R1
Rdischg
CE/
R2
Voltage
Reference
V SS
<Low ESR Capacitor>
With the XC6221 series, a stable output voltage is achievable even if used with low ESR capacitors, as a phase
compensation circuit is built-in. Values required for the phase compensation are as the chart below. In order to ensure the
stable phase compensation while avoiding run-out of values, please use the 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.
SETTING OUTPUT VOLTAGE (V)
0.8 ~ 1.15
1.2 ~ 1.35
1.4 ~ 4.0
OUTPUT CAPACITOR VALUE
CL=4.7uF
CL=2.2uF
CL=1.0uF
<CL Auto-Discharge Function>
XC6221B series can discharge the electric charge in the output capacitor (CL), when a low signal to the CE pin, which
enables a whole IC circuit turn off, is inputted via the N-channel transistor located between the VOUT pin and the VSS pin
(cf. BLOCK DIAGRAM). The CL auto-discharge resistance value is set at 780Ω(VOUT=4.0V @ VIN=6.0V at typical).
The discharge time of the output capacitor (CL) is set by the CL auto-discharge resistance (R) and the output capacitor
(CL). By setting time constant of a CL auto-discharge resistance value [Rdischg] and an output capacitor value (CL) as τ
(τ=C x Rdischg), the output voltage after discharge via the N-channel transistor is calculated by the following formulas.
V = VOUT(E) x e –t/τ, or t=τIn ( V / VOUT(E) )
( V : Output voltage after discharge, VOUT(E) : Output voltage, t: Discharge time,
τ: CL auto-discharge resistance Rdischg×Output capacitor (CL) value C)
8/23
XC6221
Series
■OPERATIONAL EXPLANATION (Continued)
<Current Limiter, Short-Circuit Protection>
The XC6221 series’ foldback circuit operates as an output current limiter and a short protection of 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 shorted to the VSS level, 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 XC6221 series. In shutdown mode,
output at the VOUT pin will be pulled down to the VSS level via R1 & R2. However, as for the XC6221B 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 becomes short. The output voltage becomes unstable, when
the CE pin is open. If this IC is used with the correct output voltage for the CE pin, the 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 when
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.
9/23
XC6221 Series
■TEST CIRCUITS
Circuit 1: Output Voltage, Output Current, Dropout Voltage, Input/Operating Voltage, Line Regulation, Load Regulation,
Current Limit, Short Current, CL Discharge Resistance
Circuit 2: Supply Current, Stand-by Current
Circuit 3: Ripple Rejection Rate
10/23
XC6221
Series
■TEST CIRCUITS (Continued)
Circuit 4: CE “H” “L” Level Voltage, CE “H” “L” Level Current
11/23
XC6221 Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC6221x182
XC6221x182
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
2.4
1.8
Output Voltage: V OUT (V)
Output Voltage: V OUT (V)
2.4
1.2
VVIN=1.9V
IN=1.9V
0.6
V IN=CE=2.8V
CIN=CL=1.0uF (ceramic)
VVIN=2.8V
IN=2.8V
1.8
1.2
Topr=25℃
0.6
Topr=-40℃
VVIN=6.0V
IN=6.0V
Topr=85℃
0
0
0
100
200
300
400
0
100
Output Current: IOUT (mA)
XC6221x302
400
V IN=CE=4.0V
CIN=CL=1.0uF (ceramic)
3.5
3
Output Voltage: V OUT (V)
3
Output Voltage: V OUT (V)
300
XC6221x302
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
3.5
200
Output Current: IOUT (mA)
2.5
2
1.5
1
V
VIN=3.1V
IN=3.1V
0.5
V
VIN=4.0V
IN=4.0V
V
VIN=6.0V
IN=6.0V
2.5
2
1.5
Topr=25℃
1
Topr=-40℃
0.5
0
Topr=85℃
0
0
100
200
300
400
0
100
Output Current: IOUT (mA)
200
300
400
Output Current: IOUT (mA)
(2) Output Voltage vs. Input Voltage
XC6221x182
XC6221x182
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
2
1.9
1.9
1.85
Output Voltage: V OUT (V)
Output Voltage: V OUT (V)
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
1.8
1.7
IOUT=1mA
IOUT=1mA
1.6
IOUT=10mA
IOUT=10mA
IOUT=30mA
IOUT=30mA
1.5
1.8
1.75
IOUT=1mA
IOUT=1mA
1.7
IOUT=10mA
IOUT=10mA
IOUT=30mA
IOUT=30mA
1.65
IOUT=100mA
IOUT=100mA
IOUT=100mA
IOUT=100mA
1.6
1.4
1
1.5
2
Input Voltage: V IN (V)
12/23
2.5
3
4
4.5
5
Input Voltage: V IN (V)
5.5
6
XC6221
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) Output Voltage vs. Input Voltage (Continued)
XC6221x302
XC6221x302
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
3.2
3.1
3.1
3.05
Output Voltage: V OUT (V)
Output Voltage: V OUT (V)
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
3
2.9
2.8
IOUT=1mA
IOUT=1mA
2.7
IOUT=10mA
IOUT=10mA
3
2.95
IOUT=30mA
IOUT=30mA
2.6
IIOUT=1mA
OUT=1mA
2.9
IIOUT=10mA
OUT=10mA
IIOUT=30mA
OUT=30mA
2.85
IOUT=100mA
IOUT=100mA
IIOUT=100mA
OUT=100mA
2.8
2.5
2
2.5
3
3.5
4
4
4.5
5
Input Voltage: V IN (V)
5.5
6
Input Voltage: V IN (V)
(3) Dropout Voltage vs. Output Current
XC6221x182
0.4
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
0.4
0.35
0.35
Topr=85℃
Dropout Voltage: Vdif (V)
Dropout Voltage: Vdif (V)
XC6221x302
CE=V IN, Topr=25℃
CIN=CL=1.0uF (ceramic)
0.3
Topr=25℃
0.25
Topr=-40℃
0.2
0.15
0.1
Topr=85℃
0.3
Topr=25℃
0.25
Topr=-40℃
0.2
0.15
0.1
0.05
0.05
0
0
0
50
100
150
0
200
50
XC6221x182
Output Voltage: V OUT (V)
Output Voltage:V OUT (V)
1.75
0
25
50
Ambient Temperature: Topr ( ℃)
75
V IN=CE=4.0V, IOUT=30mA
CIN=CL=1.0uF (ceramic)
3.1
1.8
-25
200
XC6221x302
V IN=CE=2.8V, IOUT=30mA
CIN=CL=1.0uF (ceramic)
1.85
1.7
-50
150
Output Current: IOUT (mA)
Output Current: IOUT (mA)
1.9
100
100
3.05
3
2.95
2.9
-50
-25
0
25
50
75
100
Ambient Temperature: Topr ( ℃)
13/23
XC6221 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(5) Supply Current vs. Input Voltage
XC6221x182
XC6221x302
CE=V IN, CIN=CL=1.0uF (ceramic)
70
Topr=85℃
60
CE=V IN, CIN=CL=1.0uF (ceramic)
70
Topr=85℃
60
50
Supply Current: ISS (uA)
Supply Current: ISS (uA)
Topr=25℃
Topr=-40℃
40
30
20
10
Topr=25℃
50
Topr=-40℃
40
30
20
10
0
0
0
1
2
3
4
5
6
0
Input Voltage: V IN (V)
1
2
3
4
5
6
Input Voltage:V IN (V)
(6) CL-Discharge Resistance vs. Ambient Temperature
XC6221B
V IN=6.0V, CE=V SS, V OUT =4.0V
CIN=CL=1.0uF (ceramic)
CL-Discharge Resistance: Rdischg (Ω)
1200
1000
800
600
400
200
0
-50
-25
0
25
50
75
100
Ambient Temperature: Topr (℃)
(7) Load Transient Response
XC6221x302
300
3.1
1.7
200
1.6
150
Output Current
Output Voltage: V OUT (V)
250
Output Current: O
I UT (mA)
Output Voltage: V OUT (V)
1.8
3
250
2.9
200
2.8
150
Output Current
2.7
100
50
2.6
50
0
2.5
0
1.5
100
1.4
1.3
14/23
300
Output Voltage
Output Voltage
Time (500us/div)
V IN=CE=4.0V, Tr=Tf=5us
Topr=25℃, CIN=CL=1uF (ceramic)
Time (500us/div)
Output Current: O
I UT (mA)
1.9
XC6221x182
V IN=CE=2.8V, Tr=Tf=5us
Topr=25℃, CIN=CL=1uF (ceramic)
XC6221
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Line Transient Response
2
5
4
1.95
4
3
1.9
Output Voltage
Input Voltage:V IN (V)
1.85
2
Output Voltage:V OUT (V)
Input Voltage: V IN (V)
Input Voltage
3
2
0
1.75
1.7
-1
1.7
-1
Time (20us/div)
Time (20us/div)
XC6221x182
XC6221x302
CE=V IN, Tr=Tf=5us
IOUT=100mA, Topr=25℃, CL=1uF (ceramic)
CE=V IN ,Tr=Tf=5us
IOUT=1mA, Topr=25℃, CL=1uF (ceramic)
2
6
3
1.9
1.85
Output Voltage
1
1.8
0
Input Voltage: V IN (V)
1.95
Output Voltage: V OUT (V)
Input Voltage: V IN (V)
4
5
3.15
4
3.1
3
3.05
Output Voltage
2
3
1.75
1
2.95
1.7
0
2.9
Time (20us/div)
Time (20us/div)
XC6221x302
XC6221x302
CE=V IN , Tr=Tf=5us
IOUT=30mA, Topr=25℃, CL=1uF (ceramic)
6
3.2
CE=V IN , Tr=Tf=5us
IOUT=100mA, Topr=25℃, CL=1uF (ceramic)
3.2
Input Voltage
3.15
4
3.1
3
3.05
Output Voltage
Input Voltage: V IN (V)
5
Output Voltage: V OUT (V)
Input Voltage
Input Voltage: V IN (V)
3.2
Input Voltage
Input Voltage
6
1.85
Output Voltage
1.75
0
-1
1.9
1.8
1.8
2
1.95
1
1
5
Input Voltage
2
5
3.15
4
3.1
3
3.05
2
Output Voltage
3
2
3
1
2.95
1
2.95
0
2.9
0
2.9
Time (20us/div)
Output Voltage:V OUT (V)
5
CE=V IN, Tr=Tf=5us
IOUT=30mA, Topr=25℃, CL=1uF (ceramic)
Output Voltage: V OUT (V)
CE=V IN, Tr=Tf=5us
IOUT =1mA, Topr=25℃, CL=1uF (ceramic)
XC6221x182
Output Voltage: V OUT (V)
XC6221x182
Time (20us/div)
15/23
XC6221 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Input Rise Characteristics
XC6221x182xx
Input Voltage
2
5
2
5
1
4
1
4
0
3
-2
-3
2
Output Voltage
-1
2
1
-2
1
0
-3
Time (40us/div)
7
6
5
1
4
0
3
Output Voltage
-2
-3
7
3
6
2
5
4
1
Output Voltage
0
3
-1
2
1
-2
1
0
-3
2
0
Time (40us/div)
XC6221x302
5
8
4
Time (40us/div)
CE=V IN, Tr=5us
IOUT=30mA, Topr=25℃, CL=1.0uF (ceramic)
CE=V IN, Tr=5us
IOUT=1mA, Topr=25℃, CL=1.0uF (ceramic)
Input Voltage
2
-1
5
Input Voltage: V IN (V)
Input Voltage: V IN (V)
3
Input Voltage
XC6221x302
Output Voltage: V OUT (V)
4
0
Time (40us/div)
XC6221x182
CE=V IN, Tr=5us
IOUT=100mA, Topr=25℃, CL=1.0uF (ceramic)
3
0
Output Voltage: V OUT (V)
Output Voltage
Input Voltage: V IN (V)
6
Output Voltage:V OUT (V)
3
-1
XC6221x302
8
5
CE=V IN, Tr=5us
IOUT=100mA, Topr=25℃, CL=1.0uF (ceramic)
8
Input Voltage
Input Voltage
7
4
7
3
6
3
6
2
5
2
5
4
1
Output Voltage
0
3
-1
2
-2
-3
Time (40us/div)
16/23
Input Voltage: V IN (V)
4
Output Voltage: V OUT (V)
Input Voltage: V IN (V)
7
Input Voltage
6
3
Input Voltage: V IN (V)
4
7
CE=V IN, Tr=5us
IOUT=30mA, Topr=25℃, CL=1.0uF (ceramic)
Output Voltage:V OUT (V)
4
XC6221x182xx
4
1
Output Voltage
0
3
-1
2
1
-2
1
0
-3
0
Time (40us/div)
Output Voltage: V OUT (V)
CE=V IN, Tr=5us
IOUT=1mA, Topr=25℃, CL=1.0uF (ceramic)
XC6221
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(10) CE Rise Characteristics
XC6221x182
4
6
2
5
1
4
3
0
-1
Output Voltage
2
7
CE Input Voltage
3
2
5
1
4
3
0
Output Voltage
-1
1
-2
1
-3
0
-3
0
Time (40us/div)
XC6221x182
4
3
CE Input Voltage
XC6221x302
3
6
2
5
4
3
2
1
3
-1
2
1
1
-2
-3
0
-3
0
Time (40us/div)
Time (40us/div)
XC6221x302
5
CE Input Voltage
4
Output Voltage
0
-2
V IN=4.0V, Tr=5us
IOUT=30mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
7
6
1
-1
8
4
5
Output Voltage
CE Input Voltage
7
2
0
V IN=4.0V, Tr=5us
IOUT=1mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
5
8
CE Input Voltage: VCE (V)
V IN=2.8V, Tr=5us
IOUT=100mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
Output Voltage: V OUT (V)
5
CE Input Voltage: VCE (V)
2
-2
Time (40us/div)
XC6221x302
8
5
V IN=4.0V, Tr=5us
IOUT=100mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
CE Input Voltage:
8
3
6
3
6
2
5
2
5
4
1
Output Voltage
0
3
-1
2
-2
-3
Time (40us/div)
CE Input Voltage: VCE (V)
4
Output Voltage V OUT (V)
7
4
CE Input Voltage: VCE (V)
6
Output Voltage: V OUT (V)
7
8
Output Voltage: V OUT (V)
CE Input Voltage
5
V IN=2.8V, Tr=5us
IOUT=30mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
7
4
1
Output Voltage
0
3
-1
2
1
-2
1
0
-3
0
Output Voltage: V OUT (V)
3
8
CE Input Voltage: VCE (V)
CE Input Voltage: VCE (V)
4
XC6221x182
Output Voltage: V OUT (V)
5
V IN=2.8V, Tr=5us
IOUT=1mA, Topr=25℃, CIN=CL=1.0uF (ceramic)
Time (40us/div)
17/23
XC6221 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(11) Ripple Rejection Rate
XC6221x182
70
60
50
40
30
20
10
0
0.01
V IN=CE=4.0V DC+0.5Vp-pAC,
IOUT =30mA, Topr=25℃, CL=1.0uF (ceramic)
70
60
50
40
30
20
10
0.1
1
10
Ripple Frequency: f (kHz)
18/23
80
Ripple
Rejection
Rate:
Ripple Rejection
Rate:
RRRR
(dB)(dB)
Ripple Rejection
RRRR
(dB)
Ripple
RejectionRate:
Rate:
(dB)
80
XC6221x302
V IN=CE=2.8V DC+0.5Vp-pAC,
IOUT=30mA, Topr=25℃, CL=1.0uF (ceramic)
100
1000
0
0.01
0.1
1
10
Ripple Frequency: f (kHz)
100
1000
XC6221
Series
■PACKAGING INFORMATION
●SOT-25 (SOT-23-5)
●USP-4
* Soldering f illet surf ace is not f ormed
because the sides of the pins are plated.
●SSOT-24
●SSOT-24
19/23
XC6221 Series
■PACKAGING INFORMATION (Continued)
●USP-4 Recommended Pattern Layout
20/23
●USP-4 Recommended Metal Mask Design
XC6221
Series
■MARKING RULE
●SOT-25 / USP-4
5
①Represents product series
4
⑤
1
④⑤
2
1
2
3
SOT-25
(TOP VIEW)
①②③
① ② ③ ④
MARK
PRODUCT SERIES
XC6221******
XC6221S*****
3
4
3
USP-4
(TOP VIEW)
②Represents type of regulator
MARK
OUTPUT VOLTAGE 100mV INCREMENTS
OUTPUT VOLTAGE 50mV INCREMENTS
PRODUCT SERIES
VOUT =0.8∼3.0V
VOUT =3.1∼4.0V
VOUT =0.85∼3.05V
VOUT =3.15∼3.95V
V
A
E
L
XC6221A*****
X
B
F
M
XC6221B*****
Custom products：Represents last 1 digits of registered serial number.
0 to 9, reverse character 0 to 9 repeated (G, I, J, O, Q, W excepted)
ex.) CUSTOM PRODUCTS
MARK
SERIAL
PRODUCT SERIES
0
01
XC6221S01XM*
③Represents output voltage
MARK
OUTPUT VOLTAGE (V)
MARK
OUTPUT VOLTAGE (V)
0
-
3.1
-
3.15
F
1.6
-
1.65
-
1
-
3.2
-
3.25
H
1.7
-
1.75
-
2
-
3.3
-
3.35
K
1.8
-
1.85
-
3
-
3.4
-
3.45
L
1.9
-
1.95
-
4
-
3.5
-
3.55
M
2.0
-
2.05
-
5
-
3.6
-
3.65
N
2.1
-
2.15
-
6
-
3.7
-
3.75
P
2.2
-
2.25
-
7
0.8
3.8
0.85
3.85
R
2.3
-
2.35
-
8
0.9
3.9
0.95
3.95
S
2.4
-
2.45
-
9
1.0
4.0
1.05
-
T
2.5
-
2.55
-
A
1.1
-
1.15
-
U
2.6
-
2.65
-
B
1.2
-
1.25
-
V
2.7
-
2.75
-
C
1.3
-
1.35
-
X
2.8
-
2.85
-
D
1.4
-
1.45
-
Y
2.9
-
2.95
-
E
1.5
-
1.55
-
Z
3.0
-
3.05
-
Custom products：Represents last 1 digits of registered serial number.
0 to 9, reverse character 0 to 9 repeated (G, I, J, O, Q, W excepted)
ex.) CUSTOM PRODUCTS
MARK
SERIAL
PRODUCT SERIES
0
01
XC6221S01XM*
④⑤Represents production lot number
01, …, 09, 10, 11, …99, 0A, …,0Z, 1A, … 9Z, A0, …, Z9, AA, …, ZZ repeated.
(G, I, J, O, Q, W excepted)
*No character inversion used.
21/23
XC6221 Series
■MARKING RULE (Continued)
●SSOT-24
4
②
④
①
③
3
1
2
SSOT-24
(TOP VIEW)
①Represents product series
MARK
OUTPUT VOLTAGE 100mV INCREMENTS
OUTPUT VOLTAGE 50mV INCREMENTS
PRODUCT SERIES
VOUT =0.8∼3.0V
VOUT =3.1∼4.0V
VOUT =0.85∼3.05V
VOUT=3.15∼3.95V
9
D
A
E
XC6221A*****
B
F
C
H
XC6221B*****
②Represents output voltage
MARK
OUTPUT VOLTAGE (V)
MARK
OUTPUT VOLTAGE (V)
0
-
3.1
-
3.15
F
1.6
-
1.65
-
1
-
3.2
-
3.25
H
1.7
-
1.75
-
2
-
3.3
-
3.35
K
1.8
-
1.85
-
3
-
3.4
-
3.45
L
1.9
-
1.95
-
4
-
3.5
-
3.55
M
2.0
-
2.05
-
5
-
3.6
-
3.65
N
2.1
-
2.15
-
6
-
3.7
-
3.75
P
2.2
-
2.25
-
7
0.8
3.8
0.85
3.85
R
2.3
-
2.35
-
8
0.9
3.9
0.95
3.95
S
2.4
-
2.45
-
9
1.0
4.0
1.05
-
T
2.5
-
2.55
-
A
1.1
-
1.15
-
U
2.6
-
2.65
-
B
1.2
-
1.25
-
V
2.7
-
2.75
-
C
1.3
-
1.35
-
X
2.8
-
2.85
-
D
1.4
-
1.45
-
Y
2.9
-
2.95
-
E
1.5
-
1.55
-
Z
3.0
-
3.05
-
③④Represents production lot number
01, …, 09, 10, 11, …, 99, 0A, …, 0Z, 1A, …, 9Z, A0, …, Z9, AA, …, ZZ repeated.
(G, I, J, O, Q, W excepted)
*No character inversion used.
22/23
XC6221
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 catalog 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 catalog.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this catalog.
4. The products in this catalog 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 catalog 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 catalog may be copied or reproduced without the
prior permission of Torex Semiconductor Ltd.
23/23