參數(shù)資料
型號： LTC3780
廠商： Linear Technology Corporation
英文描述： DIODE SCHOTTKY DUAL ISOLATED 25V 150mW 0.33V-vf 200mA-IFM 2mA-IF 0.5uA-IR SOT-563 3K/REEL
中文描述： 高效率，同步，四開關降壓升壓控制器
文件頁數(shù)： 3/28頁
文件大小： 421K
代理商： LTC3780
3
LTC3780
3780f
V
REF(LINEREG)
g
m(EA)
g
m(GBW)
I
Q
Reference Voltage Line Regulation
Error Amplifier Transconductance
Error Amplifier GBW
Input DC Supply Current
Normal
Standby
Shutdown Supply Current
Forced Continuous Threshold
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
Undervoltage Reset
Feedback Overvoltage Lockout
Sense Pins Total Source Current
Start-Up Threshold
Keep-Alive Power-On Threshold
V
IN
= 4V to 30V, I
TH
= 1.2V (Note 3)
I
TH
= 1.2V, Sink/Source = 3
μ
A (Note 3)
0.002
0.32
0.6
0.02
%/V
mS
MHz
(Note 4)
2400
1500
55
0.800
–0.18
5.3
μ
A
μ
A
μ
A
V
μ
A
V
V
RUN
= 0V, V
STBYMD
> 2V
V
RUN
= 0V, V
STBYMD
= Open
70
0.84
–0.1
5.5
V
FCB
I
FCB
V
BINHIBIT
0.76
–0.30
V
FCB
= 0.85V
Measured at FCB Pin
UVLO
V
OVL
I
SENSE
V
STBYMD(START)
V
STBYMD(KA)
DF MAX, BOOST Maximum Duty Factor
DF MAX, BUCK
Maximum Duty Factor
V
RUN(ON)
RUN Pin On Threshold
I
SS
Soft-Start Charge Current
V
SENSE(MAX)
Maximum Current Sense Threshold
V
IN
Falling
Measured at V
OSENSE
Pin
V
SENSE–
= V
SENSE+
= 0V
V
STBYMD
Rising
V
STBYMD
Rising, V
RUN
= 0V
% Switch C On
% Switch A On (in Dropout)
V
RUN
Rising
V
RUN
= 2V
Boost: V
OSENSE
= V
REF
– 50mV
Buck: V
OSENSE
= V
REF
– 50mV
Discontinuous Mode
C
LOAD
= 3300pF (Note 5)
C
LOAD
= 3300pF (Note 5)
C
LOAD
= 3300pF (Note 5)
C
LOAD
= 3300pF (Note 5)
C
LOAD
= 3300pF Each Driver
●
3.8
0.86
–380
0.7
1.25
99
99
1.5
1.2
160
–130
–6
50
45
45
55
80
4
V
V
0.84
0.88
μ
A
V
V
%
%
V
μ
A
mV
mV
mV
ns
ns
ns
ns
ns
0.4
1
2
0.5
●
●
185
–150
–95
V
SENSE(MIN,BUCK)
Minimum Current Sense Threshold
TG1, TG2 t
r
TG Rise Time
TG1, TG2 t
f
TG Fall Time
BG1, BG2 t
r
BG Rise Time
BG1, BG2 t
f
BG Fall Time
TG1/BG1 t
1D
TG1 Off to BG1 On Delay,
Switch C On Delay
BG1/TG1 t
2D
BG1 Off to TG1 On Delay,
Synchronous Switch D On Delay
TG2/BG2 t
3D
TG2 Off to BG2 On Delay,
Synchronous Switch B On Delay
BG2/TG2 t
4D
BG2 Off to TG2 On Delay,
Switch A On Delay
Mode
BG1 Off to BG2 On Delay,
Transition 1
Switch A On Delay
Mode
BG2 Off to BG1 On Delay,
Transition 2
Synchronous Switch D On Delay
C
LOAD
= 3300pF Each Driver
80
ns
C
LOAD
= 3300pF Each Driver
80
ns
C
LOAD
= 3300pF Each Driver
80
ns
C
LOAD
= 3300pF Each Driver
90
ns
C
LOAD
= 3300pF Each Driver
90
ns
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
The
●
indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 15V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
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相關代理商/技術參數(shù)
參數(shù)描述
LTC3780EG 制造商:Linear Technology 功能描述:DC DC Cntrlr Dual-OUT Synchronous Boost/Buck Controller 4V to 36V Input 24-Pin SSOP
LTC3780EG#PBF 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
LTC3780EG#TR 制造商:Linear Technology 功能描述:DC DC Cntrlr Dual-OUT Synchronous Boost/Buck Controller 4V to 36V Input 24-Pin SSOP T/R
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LTC3780EGPBF 制造商:Linear Technology 功能描述:4-Switch Buck-Boost Controller SSOP24
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