參數(shù)資料
型號： LTC1142HV
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)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(shù)： 4/20頁
文件大小： 248K
代理商： LTC1142HV
4
LTC1142/LTC1142L/LTC1142HV
TYPICAL PERFOR AU
LTC1142, LTC1142HV
V
14
= V
OUT
+ 100mV (Forced)
V
14
= V
OUT
– 100mV (Forced)
25
150
0.8
5
mV
mV
125
0.55
3.8
175
2
6
V
SHDN
t
OFF
Shutdown Pin Threshold
Off-Time (Note 4)
V
C
T
= 390pF, I
LOAD
= 700mA
μ
s
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC1142CG: T
J
= T
A
+ (P
D
×
95
°
C/W)
Note 3:
This current is for one regulator block. Total supply current is the
sum of Pins 10 and 24 currents. Dynamic supply current is higher due to
the gate charge being delivered at the switching frequency. See the
Applications Information section.
Note 4:
In applications where R
SENSE
is placed at ground potential, the off-
time increases approximately 40%.
Note 5:
The LTC1142/LTC1142L/LTC1142HV are guaranteed to meet
specified performance from 0
°
C to 70
°
C and are designed, characterized
and expected to meet these extended temperature limits, but are not tested
at –40
°
C and 85
°
C. Guaranteed I-grade parts are available, consult the
factory.
Note 6:
The LTC1142L-ADJ allows operation down to V
IN
= 3.5V.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
5V Output Efficiency
3.3V Output Efficiency
5V Efficiency vs Input Voltage
3.3V Efficiency vs Input Voltage
Load Regulation
Line Regulation
LOAD CURRENT (A)
0.01
E
100
95
90
85
0.1
1
1142 G01
2
V
IN
= 6V
V
IN
= 10V
LOAD CURRENT (A)
0.01
E
100
95
90
85
0.1
1
1142 G02
2
V
IN
= 5V
V
IN
= 10V
INPUT VOLTAGE (V)
0
E
100
98
96
94
92
90
88
86
84
82
80
16
1142 G03
4
8
12
20
FIGURE 1 CIRCUIT
V
OUT
= 5V
I
LOAD
= 1A
I
LOAD
= 100mA
INPUT VOLTAGE (V)
0
E
100
98
96
94
92
90
88
86
84
82
80
16
1142 G04
4
8
12
20
FIGURE 1 CIRCUIT
V
OUT
= 3.3V
I
LOAD
= 1A
I
LOAD
= 100mA
INPUT VOLTAGE (V)
0
V
O
40
30
20
10
0
–10
–20
–30
–40
16
1142 G05
4
8
12
20
FIGURE 1 CIRCUIT
I
LOAD
= 1A
LOAD CURRENT (A)
0
V
O
20
0
–20
–40
–60
–80
–100
2.0
1142 G06
0.5
1.0
1.5
2.5
FIGURE 1 CIRCUIT
R
SENSE
= 0.05
V
IN
= 6V
V
IN
= 6V
V
IN
= 12V
V
OUT
= 5V
V
OUT
= 3.3V
V
IN
= 12V
–40
°
C
≤
T
A
≤
85
°
C (Note 5), V
10
= V
24
= 10V, unless otherwise noted.
相關(guān)PDF資料
PDF描述
LTC1142LCG-ADJ RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1142 OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70
LTC1142CG OCTAL BUS TRANSCEIVER O.C. 20-PDIP 0 to 70
LTC1142L OCTAL BUS TRANSCEIVER O.C. 20-PDIP 0 to 70
LTC1142L-ADJ OCTAL BUS TRANSCEIVER O.C. 20-SO 0 to 70
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1142HV-ADJ 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual High Efficiency Synchronous Step-Down Switching Regulators
LTC1142HVCG 功能描述:IC REG CTRLR BUCK PWM CM 28-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(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
LTC1142HVCG#PBF 功能描述:IC REG CTRLR BUCK PWM CM 28-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(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
LTC1142HVCG#TR 功能描述:IC REG CTRLR BUCK PWM CM 28-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(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
LTC1142HVCG#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 28-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(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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