参数资料
型号: LTC1707CS8#TR
厂商: Linear Technology
文件页数: 5/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.6A 8SOIC
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 ~ 8.5 V
输入电压: 2.85 V ~ 8.5 V
PWM 型: 电流模式,混合
频率 - 开关: 35kHz ~ 350kHz
电流 - 输出: 600mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
LTC1707
PI FU CTIO S
I TH (Pin 1): Error Amplifier Compensation Point. The
current comparator threshold increases with this control
voltage. Nominal voltage range for this pin is 0V to 1.2V.
RUN/SS (Pin 2): Combination of Soft-Start and Run
Control Inputs. A capacitor to ground at this pin sets the
ramp time to full current output. The time is approximately
0.5s/ μ F. Forcing this pin below 0.4V shuts down the
LTC1707.
V FB (Pin 3): Feedback Pin. Receives the feedback voltage
from an external resistive divider across the output.
GND (Pin 4): Ground Pin.
SW (Pin 5): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchro-
nous power MOSFET switches.
FU CTIO AL DIAGRA
V IN (Pin 6): Main Supply Pin. Must be closely decoupled
to GND, Pin 4.
SYNC/MODE (Pin 7): This pin performs two functions:
1) synchronize with an external clock and 2) select be-
tween two modes of low load current operation. To
synchronize with an external clock, apply a TTL/CMOS
compatible clock with a frequency between 385kHz and
550kHz. To select Burst Mode operation, float the pin or
tie it to V IN . Grounding Pin 7 forces pulse skipping mode
operation.
V REF (Pin 8): The Output of a 1.19V ± 1% Precision
Reference. May be loaded up to 100 μ A and is stable with
up to 2000pF load capacitance.
V IN
BURST
DEFEAT
X
Y
Y = “0” ONLY WHEN X IS A CONSTANT “1”
V IN
V IN
1.5 μ A
SYNC/MODE
SLOPE
7
OSC
COMP
0.4V
0.6V
V FB
3
FREQ
6 V IN
SHIFT
EN
V REF
8
V IN
0.8V
+
EA
0.12V
SLEEP
– +
I COMP
6 ?
1.19V
REF
V IN
2.25 μ A
I TH 1
BURST
S Q
UVLO
RUN/SS 2
RUN/SOFT
START
R
Q
SWITCHING
LOGIC
AND
ANTI-
TRIP = 2.7V
+
OVDET
BLANKING
CIRCUIT
SHOOT-THRU
SHUTDOWN
0.86V
+
I RCMP
5 SW
4 GND
1707 BD
5
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相关代理商/技术参数
参数描述
LTC1707IS8 功能描述:IC REG BUCK SYNC ADJ 0.6A 8SOIC 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
LTC1707IS8#PBF 功能描述:IC REG BUCK SYNC ADJ 0.6A 8SOIC 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
LTC1707IS8#TR 功能描述:IC REG BUCK SYNC ADJ 0.6A 8SOIC 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
LTC1707IS8#TRPBF 功能描述:IC REG BUCK SYNC ADJ 0.6A 8SOIC 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
LTC1707IS8PBF 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 2.85-8.5V SO8