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參數(shù)資料
| 型號： | LA5677M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Dual Switching Regulator Control IC(雙開關穩(wěn)壓器控制芯片) |
| 中文描述： | 雙開關穩(wěn)壓器控制IC（雙開關穩(wěn)壓器控制芯片） |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 98K |
| 代理商： | LA5677M |
Ordering number : EN3660B
O3098HA (OT)/92793TS A8-8023 No. 3660-1/7
LA5677M
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Dual Switching Regulator Control IC
Monolithic Linear IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Overview
The LA5677M supports single-input control of the outputs
of two converters of arbitrary types, including step up, step
down and inverting. Since the LA5677M supports low
voltage (3.6 to 18 V) and high frequency (1 to 500 kHz)
operation, it is ideal for use in power supplies in battery
powered portable equipment.
Features
Operates at low voltages (3.6 to 18 V)
Can be used with high frequency oscillators (1 to
500 kHz)
Built-in low input malfunction prevention circuit
Built-in timer-latch short circuit protection circuit
Package Dimensions
unit: mm
3035A-MFP16
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
V
I
V
O
I
O
Pd max
20
V
Error amplifier input voltage
20
V
Collector output voltage
20
V
Collector output current
21
mA
Allowable power dissipation
330
mW
Operating temperature
Topr
–20 to +85
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Recommended supply voltage
V
CC
V
I
V
O
I
O
I
FT
R
NF
C
T
R
T
f
OSC
3.6
18
V
Error amplifier input voltage
1.05
1.45
V
Collector output voltage
–0.3
+18
V
Collector output current
20
mA
Feedback pin current
45
μA
k
pF
k
kHz
Feedback resistance
100
Timing capacitance
150
15000
Timing resistance
5.1
100
Oscillator frequency
1
500
SANYO: MFP16
[LA5677M]
Operating Conditions
at Ta = 25°C
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