参数资料
型号: LTC1877EMS8#TR
厂商: Linear Technology
文件页数: 2/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.6A 8MSOP
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 10 V
输入电压: 2.65 V ~ 10 V
PWM 型: 电流模式,混合
频率 - 开关: 550kHz
电流 - 输出: 600mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-MSOP
LTC1877
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V IN ) .......................... –0.3V to 11V
PIN CONFIGURATION
TOP VIEW
I TH , PLL LPF Voltage ................................. –0.3V to 2.7V
RUN, V FB Voltages ...................................... –0.3V to V IN
SYNC/MODE Voltage .................................. –0.3V to V IN
RUN
I TH
V FB
GND
1
2
3
4
8
7
6
5
PLL LPF
SYNC/MODE
V IN
SW
SW Voltage ................................... –0.3V to (V IN + 0.3V)
P-Channel MOSFET Source Current (DC)............ 800mA
N-Channel MOSFET Sink Current (DC)................ 800mA
Peak SW Sink and Source Current .......................... 1.5A
Operating Temperature Range (Note 2) ..... –40°C to 85°C
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
ORDER INFORMATION
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T JMAX = 125°C, θ JA = 150°C/W
LEAD FREE FINISH
LTC1877EMS8#PBF
LTC1877IMS8#PBF
TAPE AND REEL
LTC1877EMS8#TRPBF
LTC1877IMS8#TRPBF
PART MARKING
LTLU
LTLV
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 5V unless otherwise speci?ed.
SYMBOL
I VFB
PARAMETER
Feedback Current
CONDITIONS
(Note 4)
l
MIN
TYP
4
MAX
30
UNITS
nA
V FB
ΔV OVL
ΔV FB
V LOADREG
V IN
Regulated Output Voltage
Output Overvoltage Lockout
Reference Voltage Line Regulation
Output Voltage Load Regulation
Input Voltage Range
(Note 4) 0°C ≤ T A ≤ 85°C
(Note 4) –40°C ≤ T A ≤ 85°C
ΔV OVL = V OVL – V FB
V IN = 2.65V to 10V (Note 4)
Measured in Servo Loop; V ITH = 0.9V to 1.2V
Measured in Servo Loop; V ITH = 1.6V to 1.2V
l
l
l
l
l
0.784
0.74
20
2.65
0.8
0.8
50
0.05
0.1
–0.1
0.816
0.84
110
0.15
0.5
–0.5
10
V
V
mV
%/V
%
%
V
I Q
Input DC Bias Current
(Note 5)
Pulse-Skipping Mode
Burst Mode Operation
Shutdown
2.65V < V IN < 10V, V SYNC/MODE = 0V, I OUT = 0A
V SYNC/MODE = V IN , I OUT = 0A
V RUN = 0V, V IN = 10V
230
10
0
350
15
1
μA
μA
μA
f OSC
Oscillator Frequency
V FB = 0.8V
495
550
605
kHz
V FB = 0V
80
kHz
f SYNC
SYNC Capture Range
400
700
kHz
1877fb
2
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LTC1877IMS8#TRPBF 功能描述:IC REG BUCK SYNC ADJ 0.6A 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
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