XC6221
Series
■GENERAL
DESCRIPTION
ETR03028-016
The XC6221 series is a high accuracy, low noise, high speed, low dropout CMOS regulator with high ripple rejection. The series
includes a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit.
The CE function enables the entire circuit to be in stand-by state by inputting low level signal. As for the XC6221B/D stand-by
mode, the electric charge at the output capacitor (C
L
) will be discharged by the internal auto-discharge switch, and as a result
the V
OUT
pin quickly returns to the V
SS
level. The output stabilization capacitor (C
L
) is also compatible with low ESR ceramic
capacitors.
Output voltage is selectable in 0.05V increments within a range of 0.80V~5.00V, using the laser trimming technology set in
factory.
The current limiter's fold-back circuit also operates as a short circuit protection and an output current limiter at the output pin.
The series achieves a fast response with only 25μA of low power consumption. Also the series has low dropout voltage
characteristics, which is 80mV at I
OUT
=100mA and V
OUT
=3.0V.
With the use of small USP-4 and ultra small USPN-4 packages, a small footprint circuit can be designed.
■APPLICATIONS
●Smart
phones / Mobile phones
●Portable
game consoles
●Digital
still cameras / Camcorders
●Digital
audio equipments
●Mobile
devices / terminals
■FEATURES
Maximum Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
Accuracy
: 200mA <Up to 250mA (TYP.)>
: 80mV@ I
OUT
=100mA, V
OUT
=3.0V
: 1.6V ~ 6.0V
: 0.80V~5.00V (0.05V increments, expect
USPN-4
)
1.20V~5.00V (0.05V increments,
USPN-4
)
: +2% (V
OUT
>1.50V) (Standard)
+30mV (V
OUT
≦1.45V)
(Standard)
+1%
(V
OUT
>2.00V) (High Accuracy)
+20mV (V
OUT
≦1.95V)
(High Accuracy)
: 25μA (TYP.)
: Less than 0.1μA
: 70dB @ 1kHz
: CE function(Active High)
Standby current below 0.1μA
C
L
Auto-Discharge (B/D Type)
CE Pin internally pulled-down (C/D Type)
: 1.0μF ceramic capacitor
Low Power Consumption
Stand-by Current
High Ripple Rejection
Function
Low ESR Capacitor
Low Output Noise
Operating Ambient Temperature
: -40℃ ~ 85℃
Packages
: USP-4, SOT-25, SSOT-24, USPN-4
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL
APPLICATION CIRCUIT
■
TYPICAL PERFORMANCE
CHARACTERISTICS
●Load
Transient Response
XC6221x182
V
IN
=V
CE
=2.8V , Tr=Tf=5μs
Ta=25℃ , C
IN
=C
L
=1.0μF (ceramic)
Output Voltage
1.8
250
1.9
300
1.7
200
1.6
100mA
Output Current
150
1.5
100
1.4
10mA
1.3
Time: (500μs/div)
50
0
Output Current: I
OUT
(mA)
Output Voltage: V
OUT
(V)
1/24
XC6221
Series
■PIN
CONFIGURATION
V
OUT
5
NC
4
V
IN
4
V
OUT
3
V
SS
2
V
OUT
1
3 CE
4 V
IN
1
V
IN
USP-4
(BOTTOM VIEW)
2
V
SS
SOT-25
(TOP VIEW)
3
CE
1
CE
2
V
SS
SSOT-24
(TOP VIEW)
V
SS
2
V
OUT
1
3 CE
4 V
IN
*It is recommended that the heat dissipation pad of the USP-4 package is soldered by
using the reference mount pattern and metal mask pattern for mounting strength. The
mount pattern should be electrically opened or connected to the V
SS
(No.2) pin.
USPN-4
(BOTTOM VIEW)
■PIN
ASSIGNMENT
PIN NUMBER
USP-4
4
1
2
3
-
SOT-25
1
5
2
3
4
SSOT-24
4
3
2
1
-
USPN-4
4
1
2
3
-
PIN NAME
V
IN
V
OUT
V
SS
CE
NC
FUNCTIONS
Power Input
Output
Ground
ON/OFF Control
No Connection
■CE
PIN LOGIC CONDITION
PIN NAME
CE
* V
CE
：
CE pin voltage
DESIGNATOR
H
L
CONDITIONS
1.2V≦V
CE
≦6.0V
V
CE
≦0.3V
2/24
XC6221
Series
■PIN
FUNCTION ASSIGNMENT
XC6221A/B (CE no pull-down resistor)
CE LEVEL
HIGH
LOW
OPEN
XC6221C/D (CE pull-down resistor)
IC OPERATION
ON
OFF
Undefined state
CE
LEVEL
HIGH
LOW
OPEN
IC OPERATION
ON
OFF
3/24
XC6221
Series
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6221①②③④⑤⑥-⑦
(*1)
: USP-4, SOT-25, SSOT-24
DESIGNATOR
ITEM
SYMBOL
A
B
①
Type of Regulator
C
D
②③
Output Voltage
08 ~ 50
2
A
④
Output Accuracy
1
B
Packages
(Order Unit)
GR-G
MR-G
NR-G
DESCRIPTION
No CE pull-down resistor without C
L
auto discharge
No CE pull-down resistor with C
L
auto discharge
CE pull-down resistor without C
L
auto discharge
CE pull-down resistor with C
L
auto discharge
ex.) V
OUT
= 3.00V
→ ②
= 3,
③
= 0
+30mV @ 0.80V≦V
OUT
≦1.40V
+2% @ V
OUT
>1.50V
When 0.1V steps such as V
OUT
=3.00V
→ ②=3, ③=0, ④=2
+30mV @ 0.85V≦V
OUT
≦1.45V
+2% @ V
OUT
>1.55V
When 0.05V steps such as V
OUT
=3.05V
→ ②=3, ③=0, ④=A
+20mV @ 0.80V≦V
OUT
≦1.90V
+1% @ V
OUT
>2.00V
When 0.1V steps such as V
OUT
= 3.00V
→ ②=3, ③=0, ④=1
+20mV @ 0.85V≦V
OUT
≦1.95V
+1% @ V
OUT
>2.00V
When 0.05V steps such as V
OUT
= 3.05V
→ ②=3, ③=0, ④=B
USP-4 (3,000pcs/Reel)
SOT-25 (3,000pcs/Reel)
SSOT-24 (3,000pcs/Reel)
⑤⑥-⑦
(*1)
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
XC6221①②③④⑤⑥-⑦
(*1)
: USPN-4
DESIGNATOR
ITEM
①
②③
Type of Regulator
Output Voltage
SYMBOL
A
B
C
D
12 ~ 50
2
A
④
Output Accuracy
1
B
⑤⑥-⑦
(*1)
(*1)
Packages
(Order Unit)
DESCRIPTION
No CE pull-down resistor without C
L
auto discharge
No CE pull-down resistor with C
L
auto discharge
CE pull-down resistor without C
L
auto discharge
CE pull-down resistor with C
L
auto discharge
ex.) V
OUT
= 3.00V
→ ②
= 3,
③
= 0
+30mV @ 1.20V≦V
OUT
≦1.40V
+2% @ V
OUT
>1.50V
When 0.1V steps such as V
OUT
=3.00V
→ ②=3, ③=0, ④=2
+30mV @ 1.20V≦V
OUT
≦1.45V
+2% @ V
OUT
>1.55V
When 0.05V steps such as V
OUT
=3.05V
→ ②=3, ③=0, ④=A
+20mV @ 1.20V≦V
OUT
≦1.90V
+1% @ V
OUT
>2.00V
When 0.1V steps such as V
OUT
= 3.00V
→ ②=3, ③=0, ④=1
+20mV @ 1.20V≦V
OUT
≦1.95V
+1% @ V
OUT
>2.00V
When 0.05V steps such as V
OUT
= 3.05V
→ ②=3, ③=0, ④=B
USPN-4 (5,000pcs/Reel)
7R-G
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
4/24
XC6221
Series
■BLOCK
DIAGRAMS
ON/OFF
ON/OFF
CE
Control
V
IN
CE
Control
V
IN
-
CE
CE/
Error
Amp
Current
Limit
-
CE
CE/
Error
Amp
Current
Limit
each
circuit
+
V
OUT
R1
each
circuit
+
V
OUT
R1
Rdischg
CE/
R2
R2
Voltage
Reference
V
SS
Voltage
Reference
V
SS
XC6221A
XC6221A½ﾘ½½½ﾞ
XC6221B
XC6221B½ﾘ½½½ﾞ
CE
R Pull
-down
ON/OFF
Control
V
IN
CE
R Pull
-down
ON/OFF
Control
V
IN
-
CE
CE/
Error
Amp
Current
Limit
-
CE
CE/
Error
Amp
Current
Limit
each
circuit
+
V
OUT
R1
each
circuit
+
V
OUT
R1
Rdischg
CE/
R2
R2
Voltage
Reference
V
SS
Voltage
Reference
V
SS
XC6221C
XC6221C½ﾘ½½½ﾞ
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
XC6221D
XC6221D½ﾘ½½½ﾞ
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-4
SOT-25
Power Dissipation
SSOT-24
USPN-4
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
Pd
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
RATINGS
V
SS
- 0.3 ~ 6.5
400
(*1)
V
SS
- 0.3 ~ V
IN
+ 0.3
V
SS
- 0.3 ~ 6.5
120
1000 (40 x 40mm Standard board)
(*2)
250
600 (40 x 40mm Standard board)
(*2)
150
500 (40 x 40mm Standard board)
(*2)
100
600 (40 x 40mm Standard board)
(*2)
-40 ~ 85
-55 ~ 125
Ta=25℃
UNITS
V
mA
V
V
mW
℃
℃
*1 I
OUT
≦Pd
/ (V
IN
-V
OUT
)
*2 The power dissipation figure shown is PCB mounted and is for reference only.
Please refer to PACKAGING INFORMATION for the mounting condition.
5/24
单片机
