MIC5203-3.8BM5 반도체 회로 부품 판매점
Cap 80mA Low-Dropout Voltage Regulator
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 Micrel Semiconductor |
MIC5203
Micrel
MIC5203
µCap™ 80mA Low-Dropout Voltage Regulator
General Description
The MIC5203 is a µCap™ 80mA linear voltage regulator with
very low dropout voltage (typically 20mV at light loads and
300mV at 80mA) and very low ground current (225µA at
20mA output), offering better than 3% initial accuracy with a
logic-compatible enable input.
The µCap™ regulator design is optimized to work with low-
value, low-cost ceramic capacitors. The outputs typically
require only 0.47µF of output capacitance for stability.
Designed especially for hand-held, battery-powered devices,
the MIC5203 can be controlled by a CMOS or TTL compatible
logic signal. When disabled, power consumption drops nearly
to zero. If on-off control is not required, the enable pin may be
tied to the input for 3-terminal operation. The ground current
of the MIC5203 increases only slightly in dropout, further
prolonging battery life. Key MIC5203 features include current
limiting, overtemperature shutdown, and protection against
reversed battery.
The MIC5203 is available in 2.8V, 3.0V, 3.3V, 3.6V, 3.8V,
4.0V, 4.5V, 4.75V, and 5.0V fixed voltages. Other voltages
are available; contact Micrel for details.
Features
• Tiny 4-lead and 5-lead surface-mount packages
• Wide Selection of output voltages
• Guaranteed 80mA output
• Low quiescent current
• Low dropout voltage
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Logic-controlled shutdown
• Stability with low-ESR ceramic capacitors
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery-powered equipment
• Bar code scanners
• SMPS post-regulator/dc-to-dc modules
• High-efficiency linear power supplies
Typical Applications
Ordering Information
Enable
Shutdown
Enable
Shutdown
LAxx
VOUT
0.47µF
SOT-143 Version
1 5 VOUT
2 0.47µF
34
SOT-23-5 Version
Part Number
Marking Voltage
MIC5203-3.0BM4
LA30
3.0V
MIC5203-3.3BM4
LA33
3.3V
MIC5203-3.6BM4
LA36
3.6V
MIC5203-3.8BM4
LA38
3.8V
MIC5203-4.0BM4
LA40
4.0V
MIC5203-4.5BM4
LA45
4.5V
MIC5203-4.7BM4
LA47
4.75V
MIC5203-5.0BM4
LA50
5.0V
MIC5203-2.8BM5
LA28
2.8V
MIC5203-3.0BM5
LK30
3.0V
MIC5203-3.3BM5
LK33
3.3V
MIC5203-3.6BM5
LK36
3.6V
MIC5203-3.8BM5
LK38
3.8V
MIC5203-4.0BM5
LK40
4.0V
MIC5203-4.5BM5
LK45
4.5V
MIC5203-4.7BM5
LK47
4.75V
MIC5203-5.0BM5
LK50
5.0V
Other voltages available. Contact Micrel for details.
Junction Temp. Range
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
Package
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
3
December 1998
3-141
MIC5203
Pin Configuration
Part
Identification
EN GND
21
LAxx
34
IN OUT
SOT-143 (M4)
Micrel
EN GND IN
321
LKxx
45
NC OUT
SOT-23-5 (M5)
Pin Description
Pin Number
SOT-143
1
2
Pin Number
SOT-23-5
2
3
31
4
45
Pin Name
GND
EN
IN
NC
OUT
Pin Function
Ground
Enable (Input): TTL/CMOS compatible control input. Logic high = enabled;
logic low or open = shutdown.
Supply Input
Not internally connected.
Regulator Output
Absolute Maximum Ratings (Note 1)
Input Supply Voltage (VIN) ............................ –20V to +20V
Enable Input Voltage (VEN) ........................... –20V to +20V
Power Dissipation (PD) ............................ Internally Limited
Storage Temperature Range (TS) ............ –60°C to +150°C
Lead Temperature (Soldering, 5 sec.) ...................... 260°C
Operating Ratings (Note 2)
Input Voltage (VIN) ........................................... 2.5V to 16V
Enable Input Voltage (VEN) .................................. 0V to VIN
Junction Temperature Range ................... –40°C to +125°C
Thermal Resistance (θJA)......................................... Note 3
3-142
December 1998
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제조업체: Micrel Semiconductor
( micrel )
MIC5203-3.8BM5 regulator
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
MIC5203-3.8BM4
Cap 80mA Low-Dropout Voltage Regulator - Micrel Semiconductor
MIC5203-3.8BM5
Cap 80mA Low-Dropout Voltage Regulator - Micrel Semiconductor