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SC8863 PDF даташит

Спецификация SC8863 изготовлена ​​​​«Semtech Corporation» и имеет функцию, называемую «150mA ULTRA LOW DROPOUT/ LOW NOISE REGULATOR».

Детали детали

Номер произв SC8863
Описание 150mA ULTRA LOW DROPOUT/ LOW NOISE REGULATOR
Производители Semtech Corporation
логотип Semtech Corporation логотип 

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SC8863 Даташит, Описание, Даташиты
150mA ULTRA LOW DROPOUT,
LOW NOISE REGULATOR
SC8863
March 1, 2000
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The SC8863 is a low dropout linear regulator that
operates from a +2.5V to +5.5V input range and
delivers up to 150mA. A PMOS pass transistor allows
the low 110µA supply current to remain independent of
load, making these devices ideal for battery operated
portable equipment such as cellular phones, cordless
phones and personal digital assistants.
The SC8863 output voltage can be preset or adjusted
with an external resistor divider. Other features include
low powered shutdown, short circuit protection, thermal
shutdown protection and reverse battery protection.
The SC8863 comes in the tiny 5 lead SOT-23
package.
FEATURES
Guaranteed 150 mA output current
Fixed or adjustable output
Very small external components
Low 75µVRMS output noise
Very low supply current
Thermal overload protection
Reverse battery protection
Low power shutdown
Surface mount packaging (5 pin SOT-23)
Full industrial temperature range
APPLICATIONS
Battery Powered Systems
Cellular Telephones
Cordless Telephones
Personal Digital Assistants
Portable Instrumentation
Modems
PCMCIA cards
BLOCK DIAGRAM
ORDERING INFORMATION
Part Number
SC8863-XXXCSK(1)(2)
Package
SOT-23-5
Notes:
(1) Where -XXX denotes voltage options. Available
voltages are: 2.50V (-250), 2.80V (-280), 3.00V (-300),
and 3.30 (-330)V.
(2) Add suffix ‘TR’ for tape and reel.
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage VIN -0.6 to +7 V
Power Dissipation
TA = 70°C
PD
571 mW
Thermal Resistance
θJA
256 °C/W
θJC 81 °C/W
Operating Ambient
Temperature Range
TA -40 to +85 °C
Operating Junction
Temperature Range
TJ -40 to +150 °C
Storage Temperature TSTG -65 to +150 °C
Range
Lead Temperature
(Soldering) 10 Sec
TLEAD
+300
°C
ESD Rating
ESD
1.25 kV
1
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320









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SC8863 Даташит, Описание, Даташиты
150mA ULTRA LOW DROPOUT,
LOW NOISE REGULATOR
SC8863
March 1, 2000
PIN DESCRIPTIONS
Pin # Pin Name
1 EN
2 GND
3 IN
4 OUT
5 SET
Description
Active high enable pin. Connect to VIN if not being used.
Ground pin. Can be used for heatsinking if needed.
Input pin.
Regulator output, sourcing up to 150mA
Connecting this pin to ground results in the internally preset value for
VOUT. Connecting to an external resistor divider changes VOUT to:
VOUT
= 1.250 • 1+
R1 
R2
TYPICAL APPLICATION - INTERNALLY PRESET OUTPUT VOLTAGE
VIN > VOUT + VD(MAX)
U1
3 VIN
SC8863
VO 4
C1
1uF Ceramic
1 EN GND SET 5
2
VOUT @ IOUT up to 150mA
C2
1uF Ceramic
TYPICAL APPLICATION - EXTERNALLY SET OUTPUT VOLTAGE(1)
VIN > VOUT + VD(MAX)
C1
1uF Ceramic
U1
3
VIN
SC8863
4
VO
1 EN GND SET 5
2
VOUT @ IOUT up to 150mA
R1
R2
10k C2
2.2uF Ceramic
NOTES:
(1) Select R1 and R2 such that the current flowing through them is 10µA (i.e. R2 120k). A value of 10kis
recommended for R2. Please see Component Selection - Externally Set Output.
© 2000 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320









No Preview Available !

SC8863 Даташит, Описание, Даташиты
150mA ULTRA LOW DROPOUT,
LOW NOISE REGULATOR
SC8863
March 1, 2000
ELECTRICAL CHARACTERISTICS
Unless specified: VIN = 3.6V, VSET = GND, VEN = VIN, TA = 25°C. Values in bold apply over full operating ambient temperature range.
Parameter
Symbol
Conditions
Min Typ Max Units
IN
Supply Voltage Range
Supply Current
VIN
IQ
IOUT = 0mA
2.5 5.5 V
100 130 µA
160
50mA IOUT 150mA
110 160 µA
200
VEN = 0V
0.0001
1
2
µA
OUT
Output Voltage (1)
Line Regulation(1)
Load Regulation(1)
VOUT
REG(LINE)
IOUT = 1mA
1mA IOUT 150mA, VOUT+1V VIN 5.5V
2.5V VIN 5.5V, SET = OUT, IOUT = 1mA
-2.0%
-3.5%
REG(LOAD)
IOUT = 0mA to 50mA
VOUT
5
-10
+2.0%
+3.5%
10
12
-15
-20
V
mV
mV
IOUT = 0mA to 100mA
-15 -20 mV
-25
IOUT = 0mA to 50mA, SET = OUT
-2.5 -7.5 mV
-15.0
IOUT = 0mA to 100mA, SET = OUT
Dropout Voltage(1)(2)
VD
IOUT = 1mA
IOUT = 50mA
-5 -15 mV
-30
1.1 mV
55 90 mV
120
IOUT = 100mA
110 180 mV
240
Current Limit
Output Voltage Noise
ILIM
en
Power Supply Rejection PSRR
Ratio
10Hz to 99kHz, IOUT = 50mA, COUT = 1µF
COUT = 100µF
f 1kHz
150 240
90
75
55
350 mA
µVRMS
dB
© 2000 SEMTECH CORP.
3
652 MITCHELL ROAD NEWBURY PARK CA 91320










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Номер в каталогеОписаниеПроизводители
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