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参数资料
| 型号： | LT1767EMS8E-5 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | PLASTIC, MSOP-8 |
| 文件页数： | 3/16页 |
| 文件大小： | 242K |
| 代理商： | LT1767EMS8E-5 |
3
LT1767/LT1767-1.8/
LT1767-2.5/LT1767-3.3/LT1767-5
sn1767 1767fas
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
V
IN
= 15V, V
C
= 0.8V, Boost = V
IN
+ 5V, SHDN, SYNC and switch open unless otherwise noted.
PARAMETER
CONDITION
FB Input Resistance
LT1767-1.8
LT1767-2.5
LT1767-3.3
LT1767-5
0.4V < V
C
< 0.9V
I
VC
=
±
10
μ
A
V
FB
= V
NOM
– 17%
V
FB
= V
NOM
+ 17%
G
G
G
G
10.5
14.7
19
29
150
500
80
70
15
21
27.5
42
350
850
120
110
2.5
0.35
0.9
90
21
30
39
60
k
k
k
k
Error Amp Voltage Gain
Error Amp Transconductance
V
C
Pin Source Current
V
C
Pin Sink Current
V
C
Pin to Switch Current Transconductance
V
C
Pin Minimum Switching Threshold
V
C
Pin 1.5A I
SW
Threshold
Maximum Switch Duty Cycle
G
1300
160
180
μ
Mho
G
μ
A
μ
A
A/V
G
Duty Cycle = 0%
V
V
V
C
= 1.2V, I
SW
= 400mA
85
80
%
%
V
G
Minimum Boost Voltage Above Switch
Boost Current
I
SW
= –1.5A, 0
°
C
≤
T
A
≤
125
°
C and –1.3A, T
A
< 0
°
C
I
SW
= –0.5A (Note 4)
I
SW
= –1.5A, 0
°
C
≤
T
A
≤
125
°
C and –1.3A, T
A
< 0
°
C (Note 4)
G
1.8
10
30
1.33
–10
7
1.5
2.7
15
45
1.40
–13
10
2.2
2
G
G
mA
mA
SHDN Threshold Voltage
SHDN Input Current (Shutting Down)
SHDN Threshold Current Hysteresis
SYNC Threshold Voltage
SYNC Input Frequency
SYNC Pin Resistance
G
1.27
–7
4
V
SHDN = 60mV Above Threshold
SHDN = 100mV Below Threshold
G
μ
A
μ
A
V
G
1.5
MHz
k
I
SYNC
= 1mA
20
MIN
TYP
MAX
UNITS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LT1767E is guaranteed to meet performance specifications
from 0
°
C to 125
°
C. Specifications over the –40
°
C to 125
°
C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3:
Minimum input voltage is defined as the voltage where the internal
regulator enters lockout. Actual minimum input voltage to maintain a
regulated output will depend on output voltage and load current. See
Applications Information.
Note 4:
Current flows into the BOOST pin only during the on period of the
switch cycle.
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
TEMPERATURE (
°
C)
–50
–25
0
25
50
75
100
125
F
1767 G01
1.22
1.21
1.20
1.19
1.18
SWITCH CURRENT (A)
0
0.5
1
1.5
S
1767 G02
400
350
300
250
200
150
100
50
0
125
°
C
25
°
C
–40
°
C
FB vs Temperature (Adj)
Switch On Voltage Drop
Oscillator Frequency
TEMPERATURE (
°
C)
–50
–25
0
25
50
75
100
125
F
1767 G03
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
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相关代理商/技术参数 |
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|---|---|
| LT1767EMS8E-5#PBF | 功能描述:IC REG BUCK 5V 1.5A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT1767EMS8E-5#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, STEP-DOWN REGULATOR, MSOP-8 |
| LT1767EMS8E-5#TR | 功能描述:IC REG BUCK 5V 1.5A 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1767EMS8E-5#TRPBF | 功能描述:IC REG BUCK 5V 1.5A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1767EMS8E-5PBF | 制造商:Linear Technology 功能描述:Sw. Regulator Step-Dn 1.5A 1.25MHz MSOP8 |
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