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300mA Low Power Low Noise LDO CMOS Voltage Regulator
Description
The SE5509B series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low power consumption, low noise environment, and low dropout voltage. Each device contains a bandgap voltage reference, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits. The SE5509B has been designed to be used with low cost capacitors and requires a minimum output capacitor of 1.0F. The output voltages range from 1.3V to 4.4V in 100mV increments. Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3V. The SE5509B is characterized for operation from -40 C
o
SE5509B
Features
Typical 110mV Dropout Voltage at 150mA. Fast Enable Turn-On Time of 20s (Typ.) Excellent Line and Load Regulation. High Accuracy Output Voltage of 3%. Ultra-Low Ground Current at 35A (Typ.) Disable Current Less than 0.01A (Typ.) Over Current and thermal Protection. No Reverse Current. ESD rating is 2.5KV(HBM). Standard SOT-23-5L and TSOP-5 Package. 100% Lead (Pb)-Free
Application
USB removable devices MPEG4 devices Wireless LAN's Hand-Held Instrumentation. Portable DVD players Digital camera
to
125 C,
o
junction
temperarure.
Pin Configuration
Ordering Information
SE5509B _
__
Pin (1=>5): G: VIN/GND/EN/BYPASS/VOUT Package: L: SOT-23-5L / TSOP-5 Output Voltage: A: VOUT = 3.3V B: VOUT = 2.8V C: VOUT = 2.5V D: VOUT = 1.8V E: VOUT = 1.5V F: VOUT = 3.0V
Block Diagram
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 1
300mA Low Power Low Noise LDO CMOS Voltage Regulator
Ordering/Marking Information
Package
SOT-23-5L / TSOP-5 (Top View) VIN GND ENABLE 1 2 3 4 BYPASS 5 VOUT
SE5509B
Ordering Information 3.3V 2.8V 2.5V 1.8V 1.5V 3.0V SE5509BALG-LF SE5509BBLG-LF SE5509BCLG-LF SE5509BDLG-LF SE5509BELG-LF SE5509BFLG-LF 509ALz 509BLz 509CLz 509DLz 509ELz 509FLz
Marking Information
The last character is the batch number. A dot on top right corner is for lead-free process. LF: lead free.
Absolute Maximum Rating (1)
Parameter Input Voltage Enable Voltage Output Voltage Power Dissipation Output Short Circuit Duration Thermal Resistance, Junction-to-Ambient Lead Temperature (Soldering, 5 sec.) Junction Temperature Storage Temperature
(2)
Symbol VIN VEN VOUT PD
Value 6 -0.3 to VIN -0.3 to 4.6 Internally Limited Infinite
(3)
Units V V V
JA TJ TS
230 260 0 to +150 -40 to +150
C/W C C C
Operating Rating
Parameter Supply Input Voltage Range Junction Temperature Range
Symbol VIN TJ
Value 5.5 0 to +125
Units V C
Electrical Characteristics
VIN = 5V; VEN=VIN; CIN = 2.2F; COUT = 2.2FElectrolytic
capacitor; IOUT = 10mA; TJ = 25C; unless otherwise noted Conditions Min 1.455 1.746 2.425 2.716 2.910 3.201 -Typ 1.5 1.8 2.5 2.8 3.0 3.3 0.2 Max 1.545 1.854 2.575 2.884 3.090 3.399 -Unit
Symbol
Parameter
VOUT
Output Voltage Accuracy
SE5509B - 1.5 (VIN=1.8V) SE5509B - 1.8 (VIN=3.3V) SE5509B - 2.5 SE5509B- 2.8 SE5509B - 3.0 SE5509B - 3.3 VIN = (VOUT + 0.8)V to 5.5V
V
VOUT
Line Regulation
%/V
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 2
300mA Low Power Low Noise LDO CMOS Voltage Regulator
Electrical Characteristics (Continued)
VIN = 5V; CIN = 2.2F; COUT = 2.2FElectrolytic
SE5509B
capacitor; IOUT = 10mA; TJ = 25C; unless otherwise noted Conditions Min -Typ 2.0 Max -Unit %
Symbol VOUT
Parameter Load Regulation
(5)
Vout version>2.8V VIN = (VOUT + 0.8)V or 2.5V IOUT = 10mA to 300mA Vout version2.8V VIN = (VOUT + 0.8)V or 2.5V IOUT = 10mA to 300mA Note 4
VOUT
Load Regulation (5) Output Voltage
--
3.0
--
%
VOUT/T
Temperature Coefficient Dropout Voltage (6) (VOUT>3.0V)
--
0.1
--
mV/C
IOUT = 10mA IOUT = 150mA IOUT = 300mA Thermal Protection Temperature Protection Hysterisys 10Hz to 100kHz, IOUT=200mA,COUT=2.2F Cbypass=0.1F f =10kHz,IOUT=50mA,Cbypass=0.1F VEN = 0.4V VEN = VIN
Voltage Raising, Output Turns On, Logic High Voltage Falling, Output Turns Off, Logic Low
------
8 110 250 150 20
-----C mV
VIN - VOUT
TPROTECTION
Thermal Protection
eNO
PSRR IQ
Output Noise Voltage Ripple Rejection Quiescent Current Enable Input Threshold Voltage Current Limit
--
100
--
VRMS dB A
---1.6 ---
70 0.01 35 --600
----0.4 --
VTH(EN) ILIMIT
V mA
Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) - TA)/JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See "Thermal Consideration" section for details Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 300mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 0.8V differential. Note 7: The Cin or Cout should be chosen carefully. Please refer to the Application Hints Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 3
300mA Low Power Low Noise LDO CMOS Voltage Regulator
Line Regulation (Iout=10mA) 3.40 3.35 Vout (V)
SE5509B
Load Regulation (Vin=4.3V) 3.40 3.35 Vout (V) 3.30 3.25 3.20 3.15
3.30 3.25 3.20 3.15 3.60 4.00 4.40 4.80 Vin (V) 5.20 5.60 6.00
0
100
200 Iout (mA)
300
400
IQ VS. VIN (VOUT=3.3V) 32 32 31 Iq (uA) 31 30 30 29 29 4.00 4.50 5.00 Vin (V) 5.50 6.00
Iq (uA) 50 45 40 35 30 25 20 0
IQ VS. IOUT (VOUT=3.3V)
100
200 Iout (mA)
300
400
PSRR (VIN=VOUT+1V+0.5Vp-pACIOUT=50mAC BY =0.1uF)
80 70 60 PSRR (dB) 50 40 30 20 10 0 0.1 1 Frequency (kHz) 10 100
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 4
300mA Low Power Low Noise LDO CMOS Voltage Regulator
Application Hints
Like any low dropout regulator, SE5509B requires external capacitors to ensure stability. ensure performance. The external capacitors must be carefully selected to
SE5509B
Thermal Considerations
It is important that the thermal limit of the package is not exceeded. The SE5509B has built-in thermal protection. to ground. When the thermal limit is exceeded, The power dissipation for a given the IC will enter protection, and VOUT will be pulled application can be calculated as following: The power dissipation (PD) is PD = IOUT * [VIN - VOUT] The thermal limit of the package is then limited to PD(MAX) = [TJ - TA]/JA where TJ is the junction temperature, TA is the ambient temperature, and JA is around 230C/W for SE5509B. SE5509B is designed to enter thermal protection at 150C. For example, if TA is 25C then the maximum PD is limited to about 0.6W. In other words, if IOUT(MAX) = 300mA, then [VIN - VOUT] cannot exceed 2V.
Input Capacitor
An input capacitor of at least 1F is required. The inexpensive Electrolytic capacitor is preferred. The value can be increased without upper limit.
Output Capacitor
An output capacitor is required for stability. It must be placed no more than 1 cm away from the VOUT pin, and connected directly between VOUT and GND pins. The inexpensive Electrolytic capacitor is recommended. The minimum value is 1F but may be increased without limit.
Application Diagram
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 5
300mA Low Power Low Noise LDO CMOS Voltage Regulator
OUTLINE DRAWING SOT-23-5L
K B H D
SE5509B
DIMN A B C D E F H J K
DIMENSIONS INCHES MM MIN MAX MIN MAX
0.110 0.059 0.036 0.014 0.0035 0.102 0.120 0.070 0.051 0.020 0.037 0.075 0.006 0.008 0.118 2.80 1.50 0.90 0.35 0.090 2.60 3.05 1.75 1.30 0.50 0.95 1.90 0.15 0.20 3.00
A
F E
C
J
OUTLINE DRAWING TSOP-5
K B H D
DIM A B C D E F H J K
N
DIMENSIONS INCHES MM MIN MAX MIN MAX
0.110 0.059 0.036 0.014 0.0035 0.102 0.120 2.80 0.070 1.50 0.040 0.90 0.020 0.35 0.037 0.075 0.006 0.008 0.090 0.118 2.60 3.05 1.75 1.00 0.50 0.95 1.90 0.15 0.20 3.00
A
F E
C
J
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 6
300mA Low Power Low Noise LDO CMOS Voltage Regulator
SE5509B
Contact Information
Seaward Electronics Incorporated - China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Email: sales@seawardinc.com.cn Seaward Electronics Corporation - Taiwan 2F, #181, Sec. 3, Min Quan East Rd. Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Email: sales@seawardinc.com.tw Seaward Electronics Incorporated - North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 5/4/2009
Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice (c) Seaward Electronics Inc., 2006. * www.seawardinc.com.cn * Page 7

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