XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
July 4, 2003 Ver. 4
Low Power Consumption
Output Current
Applications
: 25 µA (TYP)
: 150 mA (VOUT < 1.7V)
240 mA ( VOUT ≥ 1.8V)
(300mA limit)
Dropout Voltage
: 60mV (IOUT=30mA)
200mV (IOUT=100mA)
Output Current
: More than 150 mA (300mA limit)
Highly Accurate
: ±2% (±30mV when VOUT=1.5V)
Output Voltage Range
: 0.9V ~ 5.0 V (50mV Step)
Low ESR capacitor compatible
General Description
z
z
z
z
z
z
Mobile phones
Cordless phones and radio communication equipment
Portable games
Cameras, Video recorders
Reference Voltage Source
Battery Powered Equipment
Features
The XC6219 series are highly accurate, low noise, CMOS LDO
Voltage Regulators. Offering low output noise, high ripple rejection
ratio, low dropout and very fast turn-on times, the XC6219 series
is ideal for today’s cutting edge mobile phone.
Internally the XC6219 includes a reference voltage source, error
amplifiers, driver transistors, current limiters and phase
compensators. The XC6219’s current limiters' foldback circuit also
operates as a short protect for the output current limiter and the
output pin.
The output voltage is set by laser trimming. Voltages are
selectable in 50mV steps within a range of 0.9V to 5.0V. The
XC6219 series is also fully compatible with low ESR ceramic
capacitors, reducing cost and improving output stability. This
high level of output stability is maintained even during frequent
load fluctuations, due to the excellent transient response
performance and high PSRR achieved across a broad range of
frequencies.
The CE function allows the output of regulator to be turned off,
resulting in greatly reduced power consumption.
The XC6219 series is available in the SOT-23-5, SOT-89 or USP6B ‘chip-scale’ package. Measuring only 2.0mm x 1.8mm the
Maximum Output Current
: 150 mA (VOUT < 1.7V)
240 mA ( VOUT ≥ 1.8V)
(300mA limit)
Dropout Voltage
: 200mV (IOUT=100mA)
Operating Voltage Range
: 2.0V ~ 6.0V
Output Voltage Range
: 0.9V ~ 5.0V (50mV Step)
Highly Accurate
: ±2% (VOUT>1.5V)
: ±30mV (VOUT≤1.5V)
Low Power Consumption
: 25 µA (TYP.)
Standby Current
: Less than 0.1µA (TYP.)
High Ripple Rejection
: 65dB (10kHz)
Operating Temperature Range
: -40OC ~ +85OC
Low ESR Capacitor Compatible
: Ceramic capacitor
Ultra Small Packages
: SOT-23-5
SOT-89
USP-6B is perfect for applications where PCB area is critical.
USP-6B
Typical Applications
1
VIN
2
VSS
3
CE
VOUT
5
CL
1µF
NC
4
CIN
1µF
1
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Pin Configuration
(NC)
4
VOUT
5
1
VIN
2
VSS
3
CE
SOT-25
(SOT-23-5)
[TOP VIEW]
Pin Assignment
VOUT VSS
2
5
VIN
4
PIN NUMBER
SOT-25 SOT-89 USP-6B
VIN 1
6 CE
NC 2
5 VSS
VOUT 3
1
NC
2
VSS
4 NC
3
CE
SOT-89
[TOP VIEW]
USP-6B
[TOP VIEW]
PIN
NAME
FUNCTION
1
4
1
VIN
Input
2
2
5
VSS
Ground
3
3
6
CE
ON/OFF Control
4
1
2, 4
NC
No Connection
5
5
3
VOUT
Output
Block Diagram
VIN
CE
ON/OFF
Control
each circuit
Current
Limit
VOUT
R2
R1
VSS
Voltage
Reference
2
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Product Classification
z 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.)
z Ordering Information
DESIGNATOR
XC6219123456
DESCRIPTION
SYMBOL
CE Pin Logic :
1
2
3
A
B
Active 'High' (pull-down resistor built in)
C
Active 'Low' (pull-up resistor built in)
D
Active 'Low' (no pull-up resistor built in)
Integer
2
4
A
5
Active 'High' (no pull-down resistor built in)
Output Voltage :
e.g. 2=3, 3=0, ⇒ 3.0V
Output Voltage: 100mV increments, ±2% accuracy
e.g. 2=2, 3=8, 4=2 ⇒ 2.80V, ±2%
Output Voltage : 50mV increments, ±2% accuracy
e.g. 2=2, 3=8, 4=A ⇒ 2.85V
Package Type :
M
SOT-25 (SOT-23-5)
P
SOT-89
D
USP - 6B
Device Orientation :
6
R
Embossed Tape : Standard Feed
L
Embossed Tape : Reverse Feed
Absolute Maximum Rating
Ta = 25OC
SYMBOL
VIN
RATINGS
UNITS
7.0
V
500
VSS -0.3 ~ VIN +0.3
mA
Output Voltage
IOUT
VOUT
CE Pin Voltage
VCE
VSS -0.3 ~ VIN +0.3
V
PARAMETER
Input Voltage
Output Current
Power
Dissipation
250
SOT-25 (SOT-23-5)
SOT-89
Pd
500
Topr
-40 ~ +85
O
-55 ~ +125
O
USP-6B
Operating Ambient Temperature
Storage Temperature
V
mW
100
Tstg
C
C
3
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Electrical Characteristics
XC6219B Series
Ta=25OC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
Output Voltage
VOUT (E)
× 0.98
VOUT(T)
× 1.02
Maximum Output Current
IOUTMAX
IOUT=30mA
*1
Load Regulation
∆VOUT
1mA≤IOUT≤100mA
Vdif1
IOUT=30mA
15
E-1
Vdif2
IOUT=100mA
E-2
Supply Current
IDD
VCE=VIN
25
Standby Current
Istby
VCE=VSS
∆VOUT /
VOUT(T)+1.0V≤VIN≤7.0V
∆VIN ⋅ VOUT
IOUT=30mA
Dropout Voltage
Line Regulation
Input Voltage
VIN
150
50
UNITS CIRCUIT
V
1
mA
1
mV
1
mV
1
50
mV
µA
2
0.01
0.10
µA
2
0.01
0.20
%/V
1
6.0
V
-
100
ppm/
O
C
1
65
dB
4
2.0
Output Voltage
∆VOUT /
IOUT=30mA
Temperature Characteristics
∆Topr ⋅ VOUT
-40OC≤Topr≤85OC
Ripple Rejection Rate
PSRR
IOUT=50mA, f=10kHz
Current Limiter
Ilim
300
mA
1
Short-circuit Current
Ishort
50
mA
1
EN "High" Voltage
VCEH
EN "Low" Voltage
VCEL
EN "High" Current
ICEH
VCE=VIN
-0.10
EN "Low" Current
ICEL
VCE=VSS
-0.10
NOTE
(NOTE 1)
(NOTE 2)
(NOTE 3)
(NOTE 4)
(NOTE 5)
(NOTE 6)
1.60
VIN
V
1
0.25
2
0.10
V
µA
0.10
µA
2
2
*1 : 150mA (VOUT<1.7V), 240mA (VOUT≥1.8V)
VOUT(T)=Specified Output Voltage
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).
Vdif={VIN1(NOTE5)-VOUT1(NOTE4)}
VOUT1=A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input.
VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased.
Unless otherwise stated, VIN=VOUT(T)+1.0V
Dropout Voltage
SYMBOL
PARAMETER
E-1
E-2
Vdif 1
Vdif 2
MAX
MIN
TYP
MAX
MIN
TYP
OUTPUT VOLTAGE
1110
1100
1150
0.90
1100
1100
1200
1.50
550
600
500
500
510
500
200
210
200
1.80 ~ 1.85
200
300
400
150
280
380
1.90 ~ 1.95
100
120
100
2.00 ~ 2.05
350
80
120
240
2.10 ~ 2.25
120
240
330
80
2.30 ~ 2.45
80
120
240
310
2.50 ~ 2.75
70
100
220
290
2.80 ~ 2.95
70
100
220
270
3.00 ~ 3.05
60
90
200
270
3.10 ~ 3.95
60
90
200
250
4.00 ~ 4.95
60
80
180
230
5.00
50
70
160
210
* 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.
4
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Test Circuits
Circuit 1
VIN
A
VOUT
CL=1.0µF
(ceramic)
CIN=1.0µF
(ceramic)
CE
V
VSS
RL
V
V
Circuit 2
A
VIN
A
CE
VOUT
OPEN
VSS
Circuit 3
VIN
VOUT
CIN=1.0µF
(ceramic)
CE
CL=1.0µF
(ceramic)
F.F.T
VSS
IOUT=10mA
Circuit 4
VIN
CE
V
VOUT
IOUT=50mA
CL=1.0µF
(ceramic)
VSS
V
VIN={VOUT+1}VDC
+0.5Vp-pAC
5
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Operational Explanation
Output voltage control with the XC6219 series:
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 and 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.
VIN
CE
ON/OFF
Control
each circuit
Current
Limit
VOUT
R2
R1
VSS
Voltage
Reference
Low ESR Capacitors
With the XC6219 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 (V OUT) and the VSS pin. Please use an
output capacitor with a capacitance value of at least 1µF. Also, please connect an input capacitor (C IN) 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 XC6219 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 XC6219 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 XC6219B type's
regulator 1 and 2 are both ' High Active/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
operational 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.
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 keep the resistance low between VIN and VSS wiring in particular.
3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
6
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
Typical Performance Characteristics
(1) Output Voltage vs. Output Current
XC6219x182
XC6219x182
VIN=2.8V
CIN=1uF (ceramics), CL=1uF (ceramics)
1.5
1.0
Topr= 85OC
25OC
- 40OC
0.5
CIN=1uF (ceramics), CL=1uF (ceramics)
2.0
Output Voltage VOUT (V)
Output Voltage VOUT (V)
2.0
VIN=2.8V
1.5
VIN=4.8V
1.0
VIN=3.8V
0.5
VIN=2.1V
0.0
0.0
0
50
0
100 150 200 250 300 350 400
50
100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Current IOUT (mA)
XC6219x252
CIN=1uF (ceramics), CL=1uF (ceramics)
3.0
Output Voltage VOUT (V)
3.0
Output Voltage VOUT (V)
XC6219x252
VIN=3.5V
CIN=1uF (ceramics), CL=1uF (ceramics)
2.5
2.0
1.5
1.0
0.5
0.0
VIN=4.5V
2.5
2.0
VIN=5.5V
1.5
1.0
VIN=3.5V
0.5
VIN=2.8V
0.0
0
50
100 150 200 250 300 350 400
0
50
Output Current IOUT (mA)
100 150 200 250 300 350 400
Output Current IOUT (mA)
XC6219x302
XC6219x302
Output Voltage VOUT (V)
4.0
Output Voltage VOUT (V)
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
3.5
3.0
2.5
2.0
1.5
O
Topr= 85 C
25OC
- 40OC
1.0
0.5
4.0
CIN=1uF (ceramics), CL=1uF (ceramics)
3.5
VIN=4V
3.0
2.5
VIN=5V
2.0
VIN=6V
1.5
VIN=3.3V
1.0
0.5
0.0
0.0
0
50
0
100 150 200 250 300 350 400
50
100 150 200 250 300 350 400
Output Current IOUT (mA)
Output Current IOUT (mA)
7
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(2) Output Voltage vs. Input Voltage
XC6219x182
1.90
Output Voltage VOUT (V)
2.0
Output Voltage VOUT (V)
XC6219x182
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
1.8
1.6
1.4
IOUT=0mA
1mA
30mA
100mA
1.2
1.8
1.85
1.80
IOUT=0mA
1mA
30mA
1.75
1.70
1.65
3.0
1.0
1.3
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
2.3
4.0
XC6219x252
2.60
Output Voltage VOUT (V)
Output Voltage VOUT (V)
XC6219x252
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
2.5
2.3
IOUT=0mA
1mA
30mA
100mA
2.1
1.9
2.5
3
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
2.55
2.50
IOUT=0mA
1mA
30mA
2.45
2.40
2.35
3.0
1.7
2
Input Voltage VIN (V)
3.5
4.0
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.10
3.0
2.8
IOUT=0mA
1mA
30mA
100mA
2.4
2.2
2.5
5.0
5.5
6.0
XC6219x302
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
2.6
4.5
Input Voltage VIN (V)
XC6219x302
3.2
6.0
Input Voltage VIN (V)
Input Voltage VIN (V)
2.7
5.0
3
3.05
3.00
Input Voltage VIN (V)
IOUT=0mA
1mA
30mA
2.95
2.90
2.85
4.0
3.5
Topr=25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
4.5
5.0
5.5
6.0
Input Voltage VIN (V)
8
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(3) Input Voltage vs. Output Current
XC6219x252
XC6219x182
CIN=1uF (ceramics), CL=1uF (ceramics)
0.8
O
Topr= 85 C
25OC
- 40OC
0.6
CIN=1uF (ceramics), CL=1uF (ceramics)
1.0
Dropout Voltage Vdif (V)
Dropout Voltage Vdif (V)
1.0
0.4
0.2
0.8
Topr= 85OC
25OC
- 40OC
0.6
0.4
0.2
0.0
0.0
0
40
80
120
160
0
200
40
80
120
160
200
Output Current IOUT (mA)
Output Current IOUT (mA)
XC6219x302
CIN=1uF (ceramics), CL=1uF (ceramics)
Dropout Voltage Vdif (V)
1.0
0.8
Topr= 85OC
25OC
- 40OC
0.6
0.4
0.2
0.0
0
40
80
120
160
200
Output Current IOUT (mA)
(4) Supply Current vs. Input Voltage
XC6219x252
XC6219x182
50.0
Supply Current ISS (µA)
Supply Current ISS (µA)
50.0
40.0
30.0
20.0
Topr= 85OC
25OC
- 40OC
10.0
40.0
30.0
20.0
Topr= 85OC
25OC
- 40OC
10.0
0.0
0.0
0
1
2
3
4
5
0
6
1
2
3
4
5
6
Input Voltage VIN (V)
Input Voltage VIN (V)
9
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(4) Supply Current vs. Input Voltage (Continued)
XC6210x302
Supply Current ISS (µA)
50.0
40.0
30.0
20.0
Topr= 85OC
25OC
- 40OC
10.0
0.0
0
1
2
3
4
5
6
Input Voltage VIN (V)
(5) Output Voltage vs. Ambient Temperature
XC6219x182
1.90
VIN=3.5V
CIN=1uF (ceramics), CL=1uF (ceramics)
2.60
1.85
Output Voltage VOUT (V)
Output Voltage VOUT (V)
XC6219x252
VIN=2.8V
CIN=1uF (ceramics), CL=1uF (ceramics)
1.80
1.75
IOUT=0mA
1mA
30mA
100mA
1.70
1.65
1.60
-40
-20
0
20
40
60
80
2.55
2.50
2.45
IOUT=0mA
1mA
30mA
100mA
2.40
2.35
2.30
100
-40
Ambient Temperature Topr (OC)
-20
0
20
40
60
80
100
Ambient Temperature Topr (OC)
XC6219x302
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Voltage VOUT (V)
3.10
3.05
3.00
2.95
IOUT=0mA
1mA
30mA
100mA
2.90
2.85
2.80
-40
-20
0
20
40
60
80
100
O
Ambient Temperature Topr ( C)
10
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(6) Supply Current vs. Ambient Temperature
XC6219x182
XC6219x252
VIN=3.5V
50.0
50.0
40.0
40.0
Supply Current ISS (µA)
Supply Current ISS (µA)
VIN=2.8V
30.0
20.0
10.0
0.0
30.0
20.0
10.0
0.0
-40
-20
0
20
40
60
80
100
-40
Ambient Temperature Topr (OC)
-20
0
20
40
60
80
100
Ambient Temperature Topr (OC)
XC6219x302
VIN=4.0V
Supply Current ISS (µA)
50.0
40.0
30.0
20.0
10.0
0.0
-40
-20
0
20
40
60
80
100
Ambient Temperature Topr (OC)
11
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(7) Input Transiend Response
XC6219x182
1.82
1
1.80
Output Voltage
-1
-1
XC6219x252
Input Voltage VIN (V)
Input Voltage
5
1.86
4
1.80
Output Voltage
-1
Input Voltage VIN (V)
1.88
1.84
1.78
tr = tf = 5use
CL=1uF (ceramics), IOUT=1mA
Input Voltage
2
2.52
1
2.50
Output Voltage
2.48
-1
2.46
Time (40usec/div)
XC6219x252
XC6219x252
Input Voltage
2.56
3
2.54
2
2.52
1
2.50
Output Voltage
0
2.48
-1
5
2.58
4
2.46
tr = tf = 5use
CL=1uF (ceramics), IOUT=100mA 2.58
Input Voltage
2.56
3
2.54
2
2.52
1
2.50
0
Output Voltage
-1
Time (40usec/div)
2.56
2.54
Time (40usec/div)
tr = tf = 5use
CL=1uF (ceramics), IOUT=10mA
2.58
3
0
1.76
1.78
1.76
XC6219x182
1
4
Output Voltage
Time (40usec/div)
1.82
5
1.80
Time (40usec/div)
2
0
1
1.76
4
3
1.82
0
tr = tf = 5use
CL=1uF (ceramics), IOUT=100mA
1.84
2
1.78
Input Voltage VIN (V)
5
Input Voltage
3
Input Voltage VIN (V)
0
1.86
Output Voltage VOUT (V)
2
1.88
Output Voltage VOUT (V)
1.84
4
Input Voltage VIN (V)
Input Voltage
Output Voltage VOUT (V)
3
1.86
Output Voltage VOUT (V)
Input Voltage VIN (V)
4
tr = tf = 5use
CL=1uF (ceramics), IOUT=10mA
5
1.88
Output Voltage VOUT (V)
5
tr = tf = 5use
CL=1uF (ceramics), IOUT=1mA
Output Voltage VOUT (V)
XC6219x182
2.48
2.46
Time (40usec/div)
12
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(7) Input Transiend Response (Continued)
6
3.06
5
3.06
Input Voltage
4
3.04
3
3.02
2
3.00
Output Voltage
1
2.98
0
2.96
Input Voltage VIN (V)
Input Voltage VIN (V)
5
3.08
tr = tf = 5use
CL=1uF (ceramics), IOUT=10mA 3.08
Output Voltage VOUT (V)
6
tr = tf = 5use
CL=1uF (ceramics), IOUT=1mA
Input Voltage
4
3.04
3
3.02
2
3.00
Output Voltage
1
0
2.98
Output Voltage VOUT (V)
XC6219x302
XC6219x302
2.96
Time (40usec/div)
Time (40usec/div)
XC6219x302
tr = tf = 5use
CL=1uF (ceramics), IOUT=100mA
Input Voltage VIN (V)
5
3.08
3.06
Input Voltage
4
3.04
3
3.02
2
3.00
1
Output Voltage
0
2.98
Output Voltage VOUT (V)
6
2.96
Time (40usec/div)
(8) Load Transient Response
XC6219x182
XC6219x182
250
1.8
200
1.7
150
1.6
100
Output Current
1.5
50mA
50
10mA
1.4
VIN=2.8V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
1.9
250
Output Voltage
1.8
200
1.7
150
Output Current
1.6
1.5
100
100mA
50mA
50
1.4
0
Output Current IOUT (mA)
Output Voltage
Output Voltage VOUT (V)
1.9
2.0
300
Output Current IOUT (mA)
Output Voltage VOUT (V)
2.0
VIN=2.8V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics)
0
Time (40usec/div)
Time (40usec/div)
13
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(8) Load Transient Response (Continued)
VIN=3.5V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics)
2.7
250
2.6
Output Voltage
1.8
200
1.7
150
Output Current
1.6
100
100mA
1.5
50
Output Voltage VOUT (V)
1.9
300
2.5
200
2.4
150
2.3
2.2
50mA
50
2.1
0
Time (40usec/div)
Time (40usec/div)
XC6219x252
XC6219x252
2.5
200
2.4
150
Output Current
100
100mA
50mA
50
Output Voltage VOUT (V)
250
Output Voltage
2.7
VIN=3.5V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
2.6
250
Output Voltage
2.5
200
2.4
150
Output Current
2.3
100
100mA
2.2
50
Output Current IOUT (mA)
VIN=3.5V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
Output Current IOUT (mA)
Output Voltage VOUT (V)
0
2.6
2.2
100
Output Current
10mA
1.4
2.3
250
Output Voltage
10mA
2.7
300
Output Current IOUT (mA)
XC6219x252
VIN=2.8V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics)
Output Current IOUT (mA)
Output Voltage VOUT (V)
2.0
XC6219x182
10mA
0
Time (40usec/div)
XC6219x302
XC6219x302
VIN=4.0V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
250
Output Voltage
3.0
200
2.9
150
2.8
100
Output Current
50
50mA
10mA
2.6
3.2
Output Voltage VOUT (V)
3.1
2.7
2.1
Time (40usec/div)
Output Current IOUT (mA)
Output Voltage VOUT (V)
3.2
0
0
VIN=4.0V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
3.1
250
Output Voltage
3.0
200
2.9
150
Output Current
2.8
2.7
100
100mA
50mA
50
2.6
Time (40usec/div)
Output Current IOUT (mA)
2.1
0
Time (40usec/div)
14
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XC6219 Series
High Speed LDO Regulator
Preliminary
Low ESR Cap. Compatible, On / Off Switch
(8) Load Transient Response (Continued)
3.2
VIN=4.0V, tr = tf = 5use
CIN=1uF (ceramics), CL=1uF (ceramics) 300
3.1
250
Output Voltage
3.0
200
2.9
150
Output Current
2.8
100
100mA
2.7
50
Output Current IOUT (mA)
Output Voltage VOUT (V)
XC6219x302
10mA
2.6
0
Time (40usec/div)
(9) Ripple Rejection Rate
XC6219x252
VIN=2.8V, DC+1Vp-pAC
IOUT=50mA, CL=1uF (ceramics)
100
90
80
70
60
50
40
30
20
10
0
Ripple Rejection Rate RR (dB)
Ripple Rejection Rate RR (dB)
XC6219x182
0.01
0.1
1
10
VIN=3.5V, DC+1Vp-pAC
IOUT=50mA, CL=1uF (ceramics)
100
90
80
70
60
50
40
30
20
10
0
0.01
100
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
XC6219x302
VIN=3.0V, DC+1Vp-pAC
IOUT=50mA, CL=1uF (ceramics)
Ripple Rejection Rate RR (dB)
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
Ripple Frequency f (kHz)
100
15
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