參數(shù)資料
型號(hào)： LT1339
廠商： Linear Technology Corporation
英文描述： High Efficiency, Synchronous, 4-Switch Buck-Boost Controller
中文描述： 高效率，同步，四開關(guān)降壓升壓控制器
文件頁數(shù)： 3/20頁
文件大?。?/td> 415K
代理商： LT1339
3
LT1339
12V
IN
= V
BOOST
= 12V, V
C
= 2V, TS = 0V, V
FB
= V
REF
= 1.25V, C
TG
= C
BG
= 3000pF, T
A
= 25
°
C unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
SYMBOL
Error Amplifier
V
FB
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Error Amplifier Reference Voltage
Measured at Feedback Pin
1.242
1.235
0.1
1200
1500
200
280
1.250
1.250
0.5
2000
3000
275
400
3.5
190
120
2.5
1.258
1.265
1.0
3200
V
V
G
I
FB
g
m
A
V
I
VC
Feedback Input Current
Error Amplifier Transconductance
Error Amplifier Voltage Gain
Error Amplifier Source Current
Error Amplifier Sink Current
Absolute V
C
Clamp Voltage
Peak Current Limit Threshold
Average Current Limit Threshold (Note 4)
Average Current Limit Threshold
Current Sense Amplifier
A
V
Amplifier DC Gain
V
OS
Amplifier Input Offset Voltage
V
FB
= V
REF
G
μ
A
G
μ
mho
V/V
G
G
G
μ
A
μ
A
V
mV
mV
V
FB
– V
REF
= 500mV
Measured at V
C
Pin
Measured at Sense Inputs
Measured at Sense Inputs
Measured at I
AVG
Pin
V
VC
V
SENSE
G
G
170
110
130
V
IAVG
V
Measured at I
AVG
Pin
2V < V
CMSENSE
< 60V,
SENSE
+
– SENSE
–
= 5mV
Sink (V
CMSENSE
> 5V)
Source (V
CMSENSE
= 0V)
15
V/V
mV
G
0.1
I
B
Input Bias Current
G
G
45
700
75
1200
μ
A
μ
A
Oscillator
f
O
Operating Frequency, Free Run
Frequency Programming Error (Note 3)
Timing Capacitor Discharge Current
G
G
150
5
2.75
2.75
2.0
1.4f
O
kHz
%
mA
mA
f
O
≤
150kHz
LT1339C
LT1339I
Rising Edge
f
SYNC
≤
150kHz
–5
2.20
2.10
0.8
f
O
I
CT
G
G
2.50
2.50
V
SYNC
f
SYNC
Output Drivers
V
TG,BG
SYNC Input Threshold
SYNC Frequency Range
G
V
G
Undervoltage Output Clamp
Standby Mode Output Clamp
Top Gate On Voltage
Top Gate Off Voltage
Top Gate Rise Time
Top Gate Fall Time
Bottom Gate On Voltage
Bottom Gate Off Voltage
Bottom Gate Rise Time
Bottom Gate Fall Time
12V
IN
≤
8V
V
RUN
< 0.5V
G
G
0.4
0.7
0.1
12.0
0.7
200
140
12.0
0.7
200
140
V
V
V
V
V
TG
G
G
11.0
11.9
0.4
130
60
11.9
0.4
70
60
t
TGR
t
TGF
V
BG
G
ns
ns
V
V
ns
ns
G
G
G
11.0
t
BGR
t
BGF
G
G
Note 2:
Supply current specification does not include external FET gate
charge currents. Actual supply currents will be higher and vary with
operating frequency, operating voltages and the type of external FETs
used. See Application Information section.
Note 3:
Test condition: R
CT
= 16.9k, C
CT
= 1000pF.
Note 4:
Test Condition: V
CMSENSE
= 10V.
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
Absolute maximum ratings are those values beyond which the life
of a device may be impaired.
相關(guān)PDF資料
PDF描述
LT1339CN Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70
LT1339CSW Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70
LT1339I Octal Buffers/Drivers With 3-State Outputs 20-SOIC 0 to 70
LT1339IN Octal Buffers/Drivers With 3-State Outputs 20-PDIP 0 to 70
LT1339ISW High Power Synchronous DC/DC Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1339C 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Power Synchronous DC/DC Controller
LT1339CN 功能描述:IC REG CTRLR BST PWM CM 20-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 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:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LT1339CN#PBF 功能描述:IC REG CTRLR BST PWM CM 20-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 包裝:帶卷 (TR)
LT1339CN#PBF 制造商:Linear Technology 功能描述:DC-DC CONTROLLER CURRENT MODE 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, CURRENT MODE, 150KHZ,
LT1339CSW 功能描述:IC REG CTRLR BST PWM CM 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 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:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
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