參數資料
型號： LTC1159-3. 3
廠商： Linear Technology Corporation
元件分類： 基準電壓源/電流源
英文描述： 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C
中文描述： 射頻放大器
文件頁數： 3/20頁
文件大?。?/td> 323K
代理商： LTC1159-3. 3
3
LTC1159/LTC1159-3.3/LTC1159-5
SYMBOL
V
EXT
– V
CC
V
P-GATE
– V
IN
PARAMETER
EXTV
CC
Switch Drop
P-Gate to Source Voltage (Off)
CONDITIONS
V
IN
= 12V, EXTV
CC
= 5V, I
SWITCH
= 10mA
V
IN
= 12V
V
IN
= 40V
MIN
TYP
250
0
0
MAX
350
UNITS
mV
–0.2
–0.2
V
V
V
SENSE+
–
V
SENSE–
Current Sense Threshold Voltage
LTC1159
V
SENSE–
= 5V, V
FB
= 1.32V (Forced)
V
SENSE–
= 5V, V
FB
= 1.15V (Forced)
V
SENSE–
= 3.4V (Forced)
V
SENSE–
= 3.1V (Forced)
V
SENSE–
= 5.2V (Forced)
V
SENSE–
= 4.7V (Forced)
25
150
25
150
25
150
mV
mV
mV
mV
mV
mV
G
130
170
LTC1159-3.3
G
130
170
LTC1159-5
G
130
170
V
SNDN1
SHDN1 Threshold
LTC1159CG, LTC1159-3.3, LTC1159-5
SHDN2 Threshold
Shutdown 2 Input Current
C
T
Pin Discharge Current
0.6
0.8
0.8
1.4
12
70
2
5
100
2
2
20
90
10
6
200
V
V
V
SHDN2
I
SHDN2
I
CT
V
SHDN2
= 5V
V
OUT
in Regulation
V
OUT
= 0V
C
T
= 390pF, I
LOAD
= 700mA, V
IN
= 10V
C
L
= 3000pF (Pins P-Drive and N-Gate), V
IN
= 6V
μ
A
μ
A
μ
A
μ
s
ns
50
t
OFF
t
r
, t
f
Off-Time (Note 4)
Driver Output Transition Times
4
ELECTRICAL C
HARA TERISTICS
T
A
= 25
°
C, V
IN
= 12V, V
SHDN1
= 0V (Note 2), unless otherwise noted.
SYMBOL
V
FB
V
OUT
PARAMETER
Feedback Voltage (LTC1159 Only)
Regulated Output Voltage
LTC1159-3.3
LTC1159-5
V
IN
Pin Current (Note 3)
Normal
CONDITIONS
MIN
1.2
TYP
1.25
MAX
1.3
UNITS
V
V
IN
= 9V
I
LOAD
= 700mA
I
LOAD
= 700mA
3.17
4.85
3.30
5.05
3.43
5.25
V
V
I
IN
V
IN
= 12V, EXTV
CC
= 5V
V
IN
= 40V, EXTV
CC
= 5V
V
IN
= 12V, V
SHDN2
= 2V
V
IN
= 40V, V
SHDN2
= 2V
EXTV
CC
= 5V, Sleep Mode
V
IN
= 12V to 40V, EXTV
CC
= 0V, I
CC
= 10mA
200
300
15
25
250
4.5
μ
A
μ
A
μ
A
μ
A
μ
A
V
Shutdown
I
EXTVCC
V
CC
EXTV
CC
Pin Current (Note 3)
Internal Regulator Voltage
V
SENSE+
–
V
SENSE–
V
SHDN2
t
OFF
Current Sense Threshold Voltage
Low Threshold (Forced)
High Threshold (Forced)
25
150
1.4
5
mV
mV
125
0.8
3.5
175
2
6.5
SHDN2 Threshold
Off-Time (Note 4)
V
C
T
= 390pF, I
LOAD
= 700mA, V
IN
= 10V
μ
s
–40
°
C
≤
T
A
≤
85
°
C (Note 5)
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formulas:
LTC1159CG, LTC1159CG-3.3, LTC1159CG-5: T
J
= T
A
+ (P
D
×
135
°
C/W)
LTC1159CN, LTC1159CN-3.3, LTC1159CN-5: T
J
= T
A
+ (P
D
×
80
°
C/W)
LTC1159CS, LTC1159CS-3.3, LTC1159CS-5: T
J
= T
A
+ (P
D
×
110
°
C/W)
Note 2:
On LTC1159 versions which have a SHDN1 pin, it must be at
ground potential for testing.
Note 3:
The LTC1159 V
IN
and EXTV
CC
current measurements exclude
MOSFET driver currents. When V
CC
power is derived from the output via
EXTV
CC
, the input current increases by (I
GATECHG
×
Duty Cycle)/(Efficiency).
See Typical Performance Characteristics and Applications Information.
Note 4:
In applications where R
SENSE
is placed at ground potential, the off-
time increases approximately 40%.
Note 5:
The LTC1159, LTC1159-3.3, and LTC1159-5 are not tested and
not quality assurance sampled at –40
°
C and 85
°
C. These specifications
are guaranteed by design and/or correlation.
Note 6:
The logic-level power MOSFETs shown in Figure 1 are rated for
V
DS(MAX)
= 30V. For operation at V
IN
> 30V, use standard threshold
MOSFETs with EXTV
CC
powered from a 12V supply. See Applications
Information.
相關PDF資料
PDF描述
LTC1159-5 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C
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LTC1159IS-3.3 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1159IS-5 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
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相關代理商/技術參數
參數描述
LTC1159-5 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Synchronous Step-Down Switching Regulators
LTC1159CG 功能描述:IC REG CTRLR BUCK PWM CM 20-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數: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
LTC1159CG#PBF 功能描述:IC REG CTRLR BUCK PWM CM 20-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數: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
LTC1159CG#TR 功能描述:IC REG CTRLR BUCK PWM CM 20-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數: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
LTC1159CG#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 20-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 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 ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
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