L5201-45-AG6-R [UTC]
Switched Capacitor Regulator, 1300kHz Switching Freq-Max, CMOS, PDSO6, SOT-26, 6 PIN;型号: | L5201-45-AG6-R |
厂家: | Unisonic Technologies |
描述: | Switched Capacitor Regulator, 1300kHz Switching Freq-Max, CMOS, PDSO6, SOT-26, 6 PIN 光电二极管 |
文件: | 总7页 (文件大小:164K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
L5201
CMOS IC
LOW NOISE, REGULATED
CHARGE PUMP DC/DC
CONVERTERS
MSOP-8
4
5
5
6
6
ꢀ
DESCRIPTION
3
3
2
2
The UTC L5201-xx series are low noise, constant frequency
1
SOT-26
charge pump DC/DC converters and designed to increase efficiency
in white LED application. The operating voltage range is 2.7V ~ VOUT
input with up to 100mA of output current. Low external parts counts
(one flying capacitor and two small bypass capacitors at VIN and
VOUT) make the UTC L5201-xx series ideally suited for small,
battery-powered applications.
4
1
TSOT-26
A
charge-pump architecture maintains constant switching
frequency to zero load and reduces both output and input ripple. The
UTC L5201-xx series have thermal shutdown capability to escape
the device damaged from a continuous short-circuit. With built-in
soft-start circuitry to prevents excessive current flow at VIN during
start-up. High switching frequency enables the use of small ceramic
capacitors. A low-current shutdown feature disconnects the load from
*Pb-free plating product number: L5201L
VIN and reduces quiescent current to <1µA.
The L5201-ADJ is available in MSOP-8 package and
L5201-fixed in SOT-26 and TSOT-26 package.
ꢀ
FEATURES
* Low Noise Constant Frequency Operation
* Output Current:
90mA@3.0V<VIN<5V
100mA@3.0V<VIN<4.5V
* 1MHz Switching Frequency
* 4.5V/5.0V Fixed Output Voltage
* VIN Range: 2.7V ~ VOUT
* Automatic Soft-Start.
* No Inductors
* Less than 1µA of Shutdown Current
ꢀ ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
L5201-AD-SM1-R
L5201-AD-SM1-T
L5201-xx-AG6-R
L5201-xx-AH6-R
Note: xx :output voltage
Lead Free Plating
L5201L-AD-SM1-R
L5201L-AD-SM1-T
L5201L-xx-AG6-R
L5201L-xx-AH6-R
MSOP-8
MSOP-8
SOT-26
Tape Reel
Tube
Tape Reel
Tape Reel
TSOT-26
L5201L-AD-SM1-R
(1)Packing Type
(2)Package Type
(3)Output Voltage
(4)Lead Plating
(1) R: Tape Reel, T: Tube
(2) SM1: MSOP-8, AG6: SOT-26, AH6: TSOT-26
(3) AD: ADJ, xx: 45:4.5V, 50:5.0V
(4) L: Lead Free Plating, Blank: Pb/Sn
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Copyright © 2005 Unisonic Technologies Co., Ltd
QW-R502-107,A
L5201
CMOS IC
ꢀ
MARKING (For SOT-26/TSOT-26)
6
5
4
Lead Plating
Voltage Code
L F
1
2
3
ꢀ
PIN CONFIGURATIONS
SOT-26/TSOT-26
MSOP-8
+
+
V
OUT
C
V
C
1
2
3
6
5
4
8
V
OUT
C
V
1
2
3
4
IN
FB
UTC
L5201-XX
(Fixed)
7
6
5
UTC
L5201-ADJ
GND
IN
-
SHDN
SGND
-
PGND
C
SHDN
ꢀ
PIN DESCRIPTION
PIN NO.
PIN
NAME
FUNCTION
L5201-ADJ
L5201-xx
SOT-26/TSOT-26
6
MSOP-8
1
C+
VIN
Flying Capacitor Positive Terminal
Input Supply Voltage, should be bypassed with at least 6.8µf lo
w ESR
2
3
5
4
2
ceramic capacitor.
C¯
Flying Capacitor Negative Terminal
Ground terminal, should be tied to a ground plane for best
performance
4, 5
GND
Shutdown Mode, Active-Low Input. A low on
disables the
SHDN
6
7
3
SHDN
FB
L5201 series.
must not be allowed to float.
SHDN
Feedback Input Pin for Adjustable output. An output divider should be
connected from VOUT to FB to program the output voltage.
X
Regulated Output Voltage, should be bypassed with at least 6.8µf low
8
1
VOUT ESR ceramic capacitor as close as possible to the pin for best
performance
X : The pin is Inexistent for SOT-26 and TSOT-26 package.
UNISONIC TECHNOLOGIES CO., LTD
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L5201
CMOS IC
ꢀ
BLOCK DIAGRAM
UTC L5201 Adjustable version (MSOP-8)
SWITCH
CONTROL
SOFT- START
SHDN
FB
-
ERROR
OSCILLATOR
AMPLIFIER
1.268V
+
VOUT
CHARGE
PUMP
+
C
VIN
-
C
SGND
PGND
UTC L5201 fixed version (SOT-26/TSOT-26)
SWITCH
CONTROL
SOFT- START
SHDN
VOUT
OSCILLATOR
_
ERROR
AMPLIFIER
1. 268V
+
CHARGE
PUMP
+
C
VIN
C _
GND
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L5201
CMOS IC
ꢀ
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VIN
RATINGS
-0.3 ~ 6
UNIT
V
Input Voltage(to GND)
Charge Pump Voltage(to GND)
Shutdown Voltage(to GND)
VOUT
VSHDN
-0.3 ~ 5.5
-0.3 ~ (VIN+0.3)
150
V
V
Maximum DC Output Current (Note 1)
VOUT Short-Circuit Duration
IOUT
mA
Indefinite
-40 ~ +85
-40 ~ +150
Operating Temperature
TOPR
TSTG
℃
℃
Storage Temperature
Note: 1. Based on long-term current density limitations.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ꢀ
ELECTRICAL CHARACTERISTICS
(VCC=VSHDN = 3V, Ta=25°C, CFLY=1µF, CIN=10µF, COUT=10µF, unless otherwise specified.)
PARAMETER
SYMBOL
VIN
TEST CONDITIONS
VOUT=5.0V
MIN
2.7
TYP
MAX UNIT
Input Voltage
VOUT
V
2.7V<VIN<5V, IOUT=0mA,
No Switching Supply Current
IQ
90
4.5
5
140
µA
SHDN=VIN, VOUT=5.5V
2.7V<VIN<5V, IOUT≤ 50mA
3.0V<VIN<5V, IOUT≤ 100mA
2.7V<VIN<5V, IOUT ≤ 40mA
3.0V<VIN<5V, IOUT≤ 90mA
L5201-4.5V
4.32
4.68
5.2
Output Voltage
VOUT
V
L5201-5.0V
4.8
1.4
SHDN Input Threshold
High
Low
VIH
VIL
V
V
V
0.3
Feedback Voltage (For L5201-ADJ)
VFB
1.217 1.268 1.319
VIN = 3V, IOUT = 50mA
VIN = 3V, IOUT = 90mA
2.7V<VIN<5V, IOUT=0mA,
25
25
Ripple Voltage (For L5201-Fixed)
VR
mVP-P
Shutdown Supply Current
ISHDN
IFB
1
µA
nA
%
VSHDN = 0
Feedback Input Current (For L5201-ADJ)
Efficiency (For L5201-Fixed)
VFB=1.4V
-50
0.7
50
VIN = 2.7V, IOUT = 40mA
VIN = 3V, IOUT = 90mA
88
80
η
Frequency
FOSC Oscillator Free Running
tON VIN = 3V, IOUT = 0mA
IN = 3V, VOUT = GND,
1
1.3
MHz
ms
VOUT Turn-on time
0.35
V
Short-Circuit Current
ISC
SHDN = 3V
340
mA
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSD
150
30
℃
℃
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L5201
CMOS IC
ꢀ
TYPICAL APPLICATION CIRCUIT
10µF
4
C_
6
+
C
V
IN
5
2
3
1
_
+2%
2.7V ~ VOUT
V
OUT
V
OUT = 5V
V
IN
,
10µF
IOUT UP~ 40 mA VIN ≥ 2.7V
10µF
,
GND
IOUT UP ~ 90 mA VIN ≥ 3.0V
SHDN
OFF
ON
CIN, COUT: TAIYO YUDEN, JMK212BJ106KG
FLY: TAIYO YUDEN, EMK212JB105KG
C
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L5201
CMOS IC
ꢀ
TYPICAL CHARACTERISTICS
Startup Time with 50mA Load
T
Startup Time with 90mA Load
T
T
T
VSHDN
VSHDN
1
2
1
2
VOUT
VOUT
Ch1 2.00V Ch2 2.00V 100µs Ch1 1.52V
Ch1 2.00V Ch2 2.00V 100µs Ch1 1.52V
Output Ripple With IOUT=50mA
Output Ripple With IOUT=90mA
T
T
T
T
1
1
Ch1 10.0mV
M 1.00µs Ch1 5.60mV
Ch1 10.0mV
M 1.00µs Ch1 5.40mV
Output Voltage vs Supply Voltage
Output Voltage vs Output Current
5.2
5.2
5.15
5.1
5.15
5.1
5.05
5
VIN=3.6V
5.05
5
Ta = 100℃
T
a
= 25℃
4.95
4.9
4.95
4.9
Ta = -40℃
VIN=2.7V
VIN=3.0V
4.85
4.85
4.8
IOUT =20mA
3.0
4.8
2.5
0
10 20 30 40 50 60
Output Current (mA)
90
3.5
5.0
70 80
4.0
4.5
Supply Voltage (V)
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L5201
CMOS IC
ꢀ
TYPICAL CHARACTERISTICS(Cont.)
Frequency vs Supply Voltage
Output Voltage vs Temperature
1200
1150
1100
1050
1000
950
5.2
T
a
= 100℃
5.15
5.1
T
a
= 25℃
5.05
5
900
4.95
850
T
a
= -40℃
4.9
800
VIN=3.0V
4.85
4.8
750
IOUT=50mA
700
2.5
-40 -20
0
20
40
60
100
3.0
3.5
4.0
4.5
5.0
80
Supply Voltage (V)
Temperature (℃)
Efficiency vs Load Current
VIN = 2.7V
Frequency vs. Temperature
1200
1150
1100
1050
1000
950
100
90
VIN = 3.0V
80
70
60
50
40
VIN = 3.3V
900
VIN = 3.6V
850
30
20
800
40
750
700
0
-40
0.01
0.1
1
10
100
1000
-20
0
20
40
100
60
80
Load Current (mA)
Temperature(℃)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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