參數(shù)資料
型號(hào)： ILC6391CM-50
廠商： Impala Linear Corporation
英文描述： SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
中文描述： 采用SOT - 89升壓烤瓷切換與自動(dòng)負(fù)載檢測(cè)
文件頁(yè)數(shù)： 1/9頁(yè)
文件大?。?/td> 525K
代理商： ILC6391CM-50
V
OUT
V
DD
V
REF
4~5mV
+
+
-
-
2-STEP PFM
CONTROLLED OSC
100/155kHz
V
LX
LIMITER
BUFFER
V
SS
L
X
EXT
CE
CHIP ENABLE
50 mA boost converter using Pulse Frequency Modulation,
or PFM, technique, in 5-lead SOT-89 or a 5-lead SOT-23
package. Only 3 external components are needed to com-
plete the switcher design.
The ILC6390 automatically senses load variations to choose
between 55% and 75% duty cycles. Normal operation is 55%
duty at 155kHz; when load currents exceed the internal com-
parator trip point, a “turbo mode” kicks in to provide extend-
ed on-time switching (75% duty at 100kHz oscillation).
Requiring only 30μA of supply current, the ILC6390
achieves efficiencies as high as 85% at 5V yet shuts down
to 0.5μA max.
Standard voltages offered are 2.5, 3.3, and 5.0V and is
available in both a 5 lead SOT-23 and 5 lead SOT-89 pack-
age for small footprint applications.
In addition, the ILC6391 is configured to drive an external
transistor to achieve higher power levels.
ILC6390/91
SOT-89 Step-Up PFM Switcher
with Auto-Load Sense
Impala Linear Corporation
Impala Linear Corporation
1
(408) 574-3939
www.impalalinear.com
Feb 2001
ILC6390 1.1
85% conversion efficiency at 50mA out
Start-up voltages as low as 900mV
±2.5% accurate outputs
Complete switch design with only 3 external components
Automatically senses load variations to select the optimal
duty cycle and extend conversion efficiencyover a wide
range
External transistor configuration to run as switcher
controller
Shutdown to 0.5μA
Cellular phones, pagers
Cameras, video recorders
Palmtops and PDAs
ILC6390CM
ILC6390CP
5
4
1
2
3
SOT-25
(TOP VIEW)
L
X
V
SS
CE
V
DD
N/C
V
SS
L
X
SOT-89-5
(TOP VIEW)
5
4
1
2
3
N/C
V
OUT
CE
ILC6391CM
5
4
1
2
3
SOT-25
(TOP VIEW)
L
X
V
SS
CE
V
DD
N/C
ILC6391CP
V
SS
L
X
SOT-89-5
(TOP VIEW)
5
4
1
2
3
N/C
V
OUT
CE
Block Diagram
Pin-Package Configurations
ILC6390CM-25
ILC6390CM-33
ILC6390CM-50
ILC6391CM-25
ILC6391CM-33
ILC6391CM-50
ILC6390CP-25
ILC6390CP-33
ILC6390CP-50
ILC6391CP-25
ILC6391CP-33
ILC6391CP-50
* Standard product offering comes in tape & reel, quantity 3000 per
reel, orientation right for SOT-25, quantity 1000 per reel orientation
right for SOT-89.
2.5V ± 2.5%
3.3V ± 2.5%
5.0V ± 2.5%
3.3V ± 2.5% driving external transistor
3.3V ± 2.5% driving external transistor
5.0V ± 2.5% driving external transistor
2.5V ± 2.5%
3.3V ± 2.5%
5.0V ± 2.5%
3.3V ± 2.5% driving external transistor
3.3V ± 2.5% driving external transistor
5.0V ± 2.5% driving external transistor
General Description
Features
Applications
Ordering Information
相關(guān)PDF資料
PDF描述
ILC6390 SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6390CM-33 SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6390CM-50 SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6390CP-25 SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6390CP-33 SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ILC6391CM50X 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
ILC6391CP-25 制造商:IMPALA 制造商全稱:IMPALA 功能描述:SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6391CP-33 制造商:IMPALA 制造商全稱:IMPALA 功能描述:SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6391CP-50 制造商:IMPALA 制造商全稱:IMPALA 功能描述:SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE
ILC6391CP50X 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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