參數(shù)資料
型號(hào)： LT1738IG
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Slew Rate Controlled Ultralow Noise DC/DC Controller
中文描述： 0.3 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 5.30 MM, PLASTIC, SSOP-20
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 248K
代理商： LT1738IG
2
LT1738
1738fa
(Note 1)
Supply Voltage (V
IN
)................................................ 20V
Gate Drive Current .....................................Internal Limit
V5 Current .................................................Internal Limit
SHDN Pin Voltage.................................................... 20V
Feedback Pin Voltage (Trans. 10ms) ......................
±
10V
Feedback Pin Current............................................ 10mA
Negative Feedback Pin Voltage (Trans. 10ms)........
±
10V
CS Pin.......................................................................... 5V
GCL Pin ..................................................................... 16V
SS Pin.......................................................................... 3V
Operating Junction Temperature Range
(Note 3)............................................ –40
°
C to 125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ORDER PART
NUMBER
LT1738EG
LT1738IG
T
JMAX
= 150
°
C,
θ
JA
= 110
°
C/W
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 12V, V
C
= 0.9V, V
FB
= V
REF
, R
VSL
, R
CSL
= 16.9k, R
T
= 16.9k and
other pins open unless otherwise noted.
ABSOLUTEW
W
W
U
PACKAGE/ORDER IU
U
W
The
G
denotes the specifications which apply over the full operating
1
2
3
4
5
6
7
8
9
10
TOP VIEW
G PACKAGE
20-LEAD PLASTIC SSOP
20
19
18
17
16
15
14
13
12
11
GATE
CAP
GCL
CS
V5
SYNC
C
T
R
T
FB
NFB
PGND
NC
NC
V
IN
R
VSL
R
CSL
SHDN
SS
V
C
GND
SYMBOL
Error Amplifiers
V
REF
I
FB
FB
REG
V
NFR
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Voltage
Feedback Input Current
Reference Voltage Line Regulation
Negative Feedback Reference Voltage
Measured at Feedback Pin
V
FB
= V
REF
2.7V
≤
V
IN
≤
20V
Measured at Negative Feedback Pin
with Feedback Pin Open
V
NFB
= V
NFR
2.7V
≤
V
IN
≤
20V
I
C
=
±
50
μ
A
G
1.235
1.250
250
0.012
–2.50
1.265
1000
0.03
–2.45
V
G
nA
G
%/V
G
–2.56
V
I
NFR
NFB
REG
g
m
Negative Feedback Input Current
Negative Feedback Reference Voltage Line Regulation
Error Amplifier Transconductance
–37
–25
0.009
1500
μ
A
G
0.03
2200
2500
350
350
%/V
μ
mho
μ
mho
1100
700
120
120
G
I
ESK
I
ESRC
V
CLH
V
CLL
A
V
FB
OV
I
SS
Error Amp Sink Current
Error Amp Source Current
Error Amp Clamp Voltage
Error Amp Clamp Voltage
Error Amplifier Voltage Gain
FB Overvoltage Shutdown
Soft-Start Charge Current
V
FB
= V
REF
+ 150mV, V
C
= 0.9V
V
FB
= V
REF
– 150mV, V
C
= 0.9V
High Clamp, V
FB
= 1V
Low Clamp, V
FB
= 1.5V
G
200
200
1.27
0.12
250
1.47
9.0
μ
A
μ
A
V
V
V/V
G
180
Outputs Drivers Disabled
V
SS
= 1V
V
12
μ
A
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1738IG#PBF 功能描述:IC REG CTRLR 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 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
LT1738IG#PBF 制造商:Linear Technology 功能描述:ICSMPS CONTROLLERCURRENT-MODESSOP20P 制造商:Linear Technology 功能描述:IC,SMPS CONTROLLER,CURRENT-MODE,SSOP,20P
LT1738IG#TR 功能描述:IC REG CTRLR 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 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
LT1738IG#TRPBF 功能描述:IC REG CTRLR 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 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
LT1739 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | NPN | 100V V(BR)CEO | 300MA I(C) | TO-39
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