LD3986 반도체 회로 부품 판매점
DUAL ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REG
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 STMicroelectronics |
LD3986
SERIES
DUAL ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE
REG. FOR USE WITH VERY LOW ESR OUT. CAPACITORS
wwsw.dIaNtaPsUheTetV4uO.cLoTmAGE FROM 2.5V TO 6V
s STABLE WITH LOW ESR CERAMIC
CAPACITORS
s ULTRA LOW DROPOUT VOLTAGE (60mV
TYP. AT 150mA LOAD, 0.4mV TYP. AT 1mA
LOAD)
s VERY LOW QUIESCENT CURRENT (155µA
TYP. AT NO LOAD, 290µA TYP. AT 150mA
LOAD; MAX 2µA IN OFF MODE)
s GUARANTEED OUTPUT CURRENT UP TO
150mA FOR BOTH OUTPUTS
s DUAL OUTPUT VOLTAGES
s FAST TURN-ON TIME: TYP. 120µs (CO=1µF,
CBYP=10nF AND IO=1mA)
s LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s INTERNAL CURRENT AND THERMAL LIMIT
s OUTPUT LOW NOISE VOLTAGE 30µVRMS
OVER 10Hz to 100KHz
s S.V.R. OF 50dB AT 1KHz, 40dB AT 10KHz
s TEMPERATURE RANGE: -40°C TO 125°C
DESCRIPTION
The LD3986 provides up to 150mA at each output,
from 2.5V to 6V input voltage. The ultra low
drop-voltage, low quiescent current and low noise
Flip-Chip
make it suitable for low power applications and in
battery powered systems. Regulator ground
current increases only slightly in dropout, further
prolonging the battery life. Power supply rejection
is 50 dB at 1KHz and 40 dB at 10KHz. High power
supply rejection is maintained down to low input
voltage levels common to battery operated
circuits. Shutdown Logic Control function is
available for each output, this means that when
the device is used as local regulator, it is possible
to put a part of the board in standby, decreasing
the total power consumption. The LD3986 is
designed to work with low ESR ceramic
capacitors. Typical applications are in mobile
phone and similar battery powered wireless
systems.
Figure 1: Schematic Diagram
September 2005
Rev. 3
1/12
LD3986 SERIES
Table 1: Order Codes
Flip-Chip
LD3986J12248R
www.datasheet4u.com
LD3986J285R
Flip-Chip (Lead Free)
LD3986J122R-E
LD3986J12248R-E
LD3986J1828R-E
LD3986J2528R-E (*)
LD3986J28R-E
LD3986J285R-E
LD3986J29R-E (*)
LD3986J30R-E (*)
LD3986J2830R-E (*)
LD3986J3133R-E (*)
LD3986J33R-E
(*) Available on Request.
Table 2: Absolute Maximum Ratings
1 OUTPUT VOLTAGES
1.22 V
1.22 V
1.8 V
2.5 V
2.8 V
2.85 V
2.9 V
3.0 V
2.8 V
3.1 V
3.3 V
2 OUTPUT VOLTAGES
1.22 V
4.8 V
2.8 V
2.8 V
2.8 V
2.85 V
2.9 V
3.0 V
3.0 V
3.3 V
3.3 V
Symbol
VI
VO1,2
VEN1,2
IO
PD
TSTG
TOP
Parameter
DC Input Voltage
DC Output Voltage
ENABLE Input Voltage
Output Current
Power Dissipation
Storage Temperature Range
Operating Junction Temperature Range
Value
-0.3 to 6
-0.3 to VI+0.3
-0.3 to VI+0.3
Internally limited
Internally limited
-65 to 150
-40 to 125
Unit
V
V
V
°C
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
Table 3: Thermal Data
Symbol
Parameter
Rthj-amb Thermal Resistance Junction-Ambient
Flip-Chip
120
Unit
°C/W
2/12
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제조업체: STMicroelectronics
( stm )
LD3986 cmos
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[ LD3986.PDF ]
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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
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