XC6212B302MR [TOREX]
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control; 高速LDO稳压器，低ESR帽。兼容，输出开/关控制
| 型号： | XC6212B302MR |
| 厂家： | 
Torex Semiconductor |
| 描述： | High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control |
| 文件： | 总7页 (文件大小：67K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
October 27, 2003 V3
Low Power Consumption
Dropout Voltage
APPLICATIONS
!
!
: 25µA (TYP.)
!
Mobile phones, Cordless phones
: 60mV @ 30mA
"
Wireless communication equipment
Portable games
: 200mV @ 100mA
: up to 150mA
"
"
"
"
"
"
Maximum Output Current
Highly Accurate
!
!
!
!
Cameras, Video recorders
Portable AV equipment
Reference voltage
: ± 2% (± 30mV less than 1.5V)
: 0.9V ~ 6.0V (50mV Step)
Output Voltage Range
Low ESR capacitor compatible
Battery powered equipment
! GENERAL DESCRIPTION
! FEATURES
Maximum Output Current
: 150mA
The XC6212 series are highly precise, low noise, positive voltage LDO
regulators manufactured using CMOS processes. The series achieves
high ripple rejection and low dropout and consists of a voltage reference,
an error amplifier, a current limiter and a phase compensation circuit
plus a driver transistor.
Dropout Voltage
: 200mV (IOUT=100mA)
: 2.0V ~ 10V
Maximum Operating Voltage
Output Voltage Range
Highly Accurate
: 0.9V~6.0V (50mV Step)
: ±2% (VOUT>1.5V)
: ±30mV (VOUT≤1.5V)
: 25mA (TYP.)
Output voltage is selectable in 50mV increments within a range of 0.9V ~
6.0V.
The series is also compatible with low ESR ceramic capacitors which
give added output stability. This stability can be maintained even during
load fluctuations due to the excellent transient response of the series.
The current limiter's foldback circuit also operates as a short protect for
the output current limiter and the output pin.
Low Power Consumption
Standby Current
: Less than 0.1mA (TYP.)
: 70dB (10kHz)
High Ripple Rejection
The CE function enables the output to be turned off, resulting in greatly
reduced power consumption.
: -40OC ~ +85OC
Operating Temperature Range
Low ESR Capacitor Compatible
: Ceramic capacitor
: SOT-25 (SOT-23-5)
Ultra Small Packages
! TYPICAL APPLICATION CIRCUIT
! TYPICAL PERFORMANCE CHARACTERISTICS
XC6212 x 302
1
2
3
VOUT NC
VSS
5
4
50
CL
1µF
40
30
VIN
CE
20
O
Topr = 85 C
O
C
= 25 C
IN
10
O
1µF
= - 40 C
0
0
2
4
6
8
10
Input Voltage VIN (V)
Semiconductor Ltd.
1
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! PIN CONFIGURATION
! PIN ASSIGNMENT
PIN NUMBER
NC
5
CE
4
PIN NAME
FUNCTION
SOT-25
1
2
3
4
5
VOUT
VSS
VIN
Output
Ground
Power Input
ON / OFF Control
No Connection
CE
1
3
2
SS
NC
V
OUT
V
VIN
SOT-25 (SOT-23-5)
(TOP VIEW)
! BLOCK DIAGRAM
VIN
CE
ON/OFF
Control
each circuit
Current
Limiter
VOUT
VSS
R2
R1
Voltage
Reference
! SELECTION GUIDE
The following options for the CE pin logic and internal pull-up/down are available:
Active 'High' + no pull-down resistor built-in (standard)
Active 'High' + 2.0MΩ pull-down resistor built-in <between CE-VSS> (semi-custom)
Active 'Low' + no pull-up resistor built-in (semi-custom)
Active 'Low' + 2.0MΩ pull-up resistor built-in <between VIN-CE> (semi-custom)
Note: *With the pull-up resistor or pull-down resistor built-in types, the supply current during operation will increase by VIN / 2.0MΩ (TYP.).
! ORDERING INFORMATION
XC6212123456
DESIGNATOR SYMBOL
DESCRIPTION
DESIGNATOR SYMBOL
DESCRIPTION
Output Voltage : 100mV Step
Accuracy : within ±2%
Active 'High', Pull-down resistor built in
(Semi-custom)
A
2
e.g. 2=2, 3=8, 4=2 ⇒ 2.80V
Output Voltage : 50mV Step
Active 'High',
No pull-down resistor built in (Standard)
B
4
1
A
Active 'Low', Pull-up resistor built in
(Semi-custom)
Accuracy : within ±2%
e.g. 2=2, 3=8, 4=A ⇒ 2.85V
Package Type :
C
Active 'Low', No pull-up resistor built in
(Semi-custom)
5
6
D
M
SOT-25 (SOT-23-5)
Output Voltage :
Device Orientation :
2 3
Integer
R
L
e.g. 3.0V = 2: 3, 3: 0
Embossed Tape : Standard Feed
Embossed Tape : Reverse Feed
Semiconductor Ltd.
2
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! PACKAGING INFORMATION
SOT-25 (SOT-23-5)
#
MARKING RULE
!
# SOT-25 (SOT-23-5)
1Represents product series
1234
SYMBOL
PRODUCT SERIES
XC6212xxxxMx
9
SOT-25 (SOT-23-5)
(TOP VIEW)
2Represents the type of voltage regulator
SYMBOL
PRODUCT SERIES
VOUT 100mV STEPS
VOUT 50mV STEPS
VOUT=0.15~3.05V VOUT=3.15~6.05V
VOUT=0.1~3.0V VOUT=3.1~6.0V
V
X
Y
Z
A
B
C
D
E
F
L
M
N
P
XC6212AxxxMx
XC6212BxxxMx
XC6212CxxxMx
XC6212DxxxMx
H
K
3Represents output voltage
SYMBOL
OUTPUT VOLTAGE (V)
SYMBOL
OUTPUT VOLTAGE (V)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
-
3.10
3.20
3.30
3.40
3.50
3.60
3.70
3.80
3.90
4.00
4.10
4.20
4.30
4.40
4.50
-
3.15
F
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
4.60
4.70
4.80
4.90
5.00
5.10
5.20
5.30
5.40
5.50
5.60
5.70
5.80
5.90
6.00
1.65
1.75
1.85
1.95
2.05
2.15
2.25
2.35
2.45
2.55
2.65
2.75
2.85
2.95
3.05
4.65
4.75
4.85
4.95
5.05
5.15
5.25
5.35
5.45
5.55
5.65
5.75
5.85
5.95
-
-
-
-
-
3.25
3.35
3.45
3.55
3.65
3.75
3.85
3.95
4.05
4.15
4.25
4.35
4.45
4.55
H
K
L
-
-
-
-
M
N
P
R
S
T
-
-
-
-
-
-
0.90
1.00
1.10
1.20
1.30
1.40
1.50
0.95
1.05
1.15
1.25
1.35
1.45
1.55
U
V
X
Y
Z
4Represents production lot number
0 to 9, A to Z, reversed character of 0 to 9 and A to Z repeated (G,I,J,O,Q excepted)
Semiconductor Ltd.
3
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
SYMBOL
VIN
RATINGS
12
UNITS
V
mA
V
Output Current
Output Voltage
CE Input Voltage
IOUT
500
VOUT
VSS -0.3 ~ VIN +0.3
VSS -0.3 ~ VIN +0.3
250
VCE
Pd
V
Power Dissipation
mW
SOT-23-5
OC
OC
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
-40 ~ +85
-55 ~ +125
! ELECTRICAL CHARACTERISTICS
XC6212B SERIES
Ta=25OC
CIRCUIT
PARAMETER
SYMBOL
VOUT (E)
CONDITIONS
IOUT=30mA
MIN
TYP.
MAX
UNITS
Output Voltage
Maximum Output Current
Load Regulation
VOUT(T)
× 0.98
× 1.02
V
1
1
1
IOUTMAX
∆VOUT
Vdif1
150
mA
mV
mV
1mA≤IOUT≤100mA
15
50
E-1 (page 5)
IOUT=30mA
IOUT=100mA
Dropout Voltage
1
Vdif2
E-2 (page 5)
25
mV
Supply Current
Standby Current
IDD
50
2
2
µA
VCE=VIN
Istby
µA
VCE=VSS
0.01
0.01
0.10
∆VOUT /
∆VIN ⋅ VOUT
VIN
VOUT(T)+1.0V≤VIN≤10V
Line Regulation
0.20
10
% / V
1
-
IOUT=30mA
Input Voltage
Output Voltage
2
V
∆VOUT /
∆Topr ⋅ VOUT
PSRR
ppm/
OC
IOUT=30mA
-40OC≤Topr≤85OC
100
1
4
Temperature Characteristics
Ripple Rejection Rate
Current Limiter
dB
IOUT=50mA, f=10kHz
70
300
50
Ilim
mA
mA
V
1
1
1
2
2
2
Short-circuit Current
CE "High" Voltage
CE "Low" Voltage
CE "High" Current
CE "Low" Current
Ishort
VCEH
1.60
VIN
0.25
0.10
0.10
VCEL
V
ICEH
µA
µA
VCE=VIN
VCE=VSS
-0.10
-0.10
ICEL
(NOTE 1) VOUT(T)=Specified Output Voltage
(NOTE 2) VOUT(E)=Effective Output Voltage
(I.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value).
(NOTE 3) Vdif={VIN1(NOTE5)-VOUT1(NOTE4)
}
(NOTE 4) VOUT1=A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input.
(NOTE 5) VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased.
(NOTE 6) Unless otherwise stated, VIN=VOUT(T)+1.0V
Semiconductor Ltd.
4
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! DROPOUT VOLTAGE
SYMBOL
PARAMETER
E-1
E-2
Vdif 1
Vdif 2
OUTPUT VOLTAGE
0.9
MIN
TYP
MAX
1110
MIN
TYP
MAX
1200
1100
1100
1100
1150
1.5
500
500
200
120
80
510
210
150
120
120
120
100
100
90
500
550
300
280
240
240
240
220
220
200
200
180
160
600
400
380
350
330
310
290
270
270
250
230
210
1.8
200
200
1.9
100
100
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.1 ~ 2.2
2.3 ~ 2.4
2.5 ~ 2.7
2.8 ~ 2.9
3.0
80
80
70
70
60
3.1 ~ 3.9
4.0 ~ 4.9
5.0 ~ 6.0
60
90
60
80
50
70
* The input voltage 2.0V (Min.) is needed to operate the series. When the output voltage is less than 2.0V,
2.0V-VOUT(T) of dropout voltage is needed at minimum.
Semiconductor Ltd.
5
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! TEST CIRCUITS
Circuit 1
VIN
CE
VOUT
A
RL
VSS
CL=1.0µF
(ceramic)
CIN=1.0µF
(ceramic)
V
V
V
Circuit 2
VIN
VOUT
A
OPEN
CE
A
VSS
Circuit 3
VIN
VOUT
CE
F.F.T
VSS
CL=1.0µF
(ceramic)
CIN=1.0µF
(ceramic)
IOUT=10mA
Circuit 4
VOUT
VIN
CE
IOUT=50mA
VIN={VOUT+1} VDC
+0.5Vp-pAC
VSS
CL=1.0µF
(ceramic)
V
V
Semiconductor Ltd.
6
XC6212 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, Output ON/OFF Control
! OPERATIONAL EXPLANATION
Output voltage control with the XC6212 series :
The voltage divided by resistors R1 & R2 is compared with the internal
reference voltage by the error amplifier.
VIN
ON/OFF
Control
each circuit
CE
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.
Current
Limiter
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.
VOUT
VSS
R2
R1
Voltage
Reference
Low ESR Capacitors
With the XC6212 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In
order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) is connected as close as possible to the
output pin (VOUT) and the VSS pin. Please use an output capacitor with a capacitance value of at least 1µF. Also, please connect an input capacitor
(CIN) of 0.1µF between the VIN pin and the VSS pin in order to ensure a stable power input.
Current Limiter, Short-Circuit Protection
The XC6212 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and
circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result
of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. When the output pin is
shorted, a current of about 50mA flows.
CE Pin
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6212 series. In shutdown mode, output at the VOUT pin will be
pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page 3). Note
that as the standard XC6212B Type is ' Active High/No Pull Down', operations will become unstable with the CE pin open. Although the CE pin is
equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin input current will increase when the IC is in
operation. 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 IC will operate normally. However, supply current may increase as a result of through current in the IC's internal
circuitry.
! NOTES on USE
1
2
3
Please use this IC within the stated absolute maximum ratings.
The IC is liable to malfunction should the ratings be exceeded.
Where wiring impedance is high, operations may become unstable due to noise and/or phase lag
depending on output current. Please strengthen VIN and VSS wiring in particular.
Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
Semiconductor Ltd.
7
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