AMS AMS6211

AMS6211
■GENERAL DESCRIPTION
The AMS6211 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 AMS6211 stand-by
mode, the electric charge at the output capacitor (CL) will be discharged by 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 0.1V increments within a range of 1.2V~5.0V, 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 50μA of low power consumption. Also the series has low dropout voltage
characteristics, which is 100mV at IOUT=100mA .
■FEATURES
APPLICATIONS
●Cellular phones
●Cordless phones
●Wireless communication equipment
●Portable games
●Cameras, VCRs
●Portable AV equipment
●PDAs
Maximum Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
Accuracy
Low Power Consumption
Stand-by Current
High Ripple Rejection
CE Function
Stand-by Current
Low ESR Capacitor
Low Output Noise
Packages
Environmentally Friendly
Operating Ambient Temperature
■TYPICAL APPLICATION CIRCUIT
1
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: 500mA (TYP.)
: [email protected] IOUT=100mA
: 2V ~ 6.5V
: 1.2V~5.0V
: + 2% (Standard)
: 50uA (TYP.)
: 0.1uA (TYP)
: 70dB @ 1kHz
: CE Active High
: Less than 0.1μA
: 50uVrms
: SOT23-5
: EU RoHS Compliant, Pb Free
: -40℃~+85℃
AMS6211
■PIN CONFIGURATION
VOUT
NC
5
4
1
2
3
VIN
Vss
CE
SOT23-5
(TOP VIEW)
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
1
VIN
Power Input
5
VOUT
Output
2
VSS
Ground
3
CE
ON/OFF Control
4
NC
No Connection
SOT23-5
PIN NAME
CE
DESIGNATOR
CONDITIONS
H
1.2V≦VCE≦6.0V
L
VCE≦0.3V
■ BLOCK DIAGRAMS
2
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AMS6211
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage VIN
Iout
Output Current
Output Voltage
Power
SOT23
Dissipation SOT89
Operating Temperature
Storage Temperature
Soldering Temp & Time
RATINGS
7
600
UNITS
V
mA
Vss-0.3 ~ Vout+0.3
Vout
V
Pd
300
mW
Pd
500
mW
TOpr
-40 ~ +85
℃
Tstg
-40 ~ +125
℃
Tsolder
260℃, 10s
■ ELECTRICAL CHARACTERISTICS
AMS621133
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Output Voltage
VOUT(E)
(Note 2)
IOUT=30mA,
VIN=Vout+1V
X 0.98
VOUT (T)
X 1.02
V
5.5
V
(Note 1)
Input Voltage VIN
Maximum
Output Current
Load Regulation
Dropout Voltage
IOUTmax
∆VOUT
Vdif
VIN=Vout+1V
VIN=Vout+1V,
1mA≤IOUT≤100mA
IOUT =100mA
500
mA
9
mV
100
mV
(Note 3)
Quiescent Current
CE Low Level Current
Line Regulation
ISS
ICEL
∆VOUT
∆VIN • VOUT
Output Noise en
PSRR
VIN=Vout+1V
50
μA
Vce=0V
0.1
μA
IOUT =40mA
Vout+1V ≤VIN≤6.5V
0.05
%/V
50
uVrms
70
dB
IOUT =40mA,
300Hz~50kHz
Vin= [Vout+1]V
+1Vp-pAC
IOUT =50mA,f=1kHz
注 :
1. VOUT (T) :Nominal output voltage
2. VOUT (E) :Effective output voltage
3. Vdif :VIN1 –VOUT (E)’
VIN1 is the input voltage when VOUT1 appears at the VOUT pin while input voltage is gradually decreased. VOUT (E)’ is the voltage equal to 98% of the normal output voltage when amply stabilized VOUT (T) +1.0V are input at the VIN pin.
3
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AMS6211
■PACKAGING INFORMATION
●SOT23-5
(unit : mm)
Symbol
A
mm
MIN
-
MAX
1.25
TYPE
-
A1
0
-
0.15
A2
A3
b
b1
c
c1
D
E
E1
e
e1
L
L1
L2
R
R1
θ
θ1
θ2
1.00
0.60
0.36
0.36
0.14
0.14
2.826
2.60
1.526
1.10
0.65
0.38
0.15
2.926
2.80
1.626
0.95BSC
1.90BSC
0.45
0.59REF
0.25BSC
5°
8°
1.20
0.70
0.50
0.45
0.20
0.16
3.026
3.00
1.726
0.35
0.10
0.10
0°
3°
6°
0.60
0.25
8°
7°
10°
4
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AMS6211
5
Advanced Monolithic Systems
http://www.ams-semitech.com