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参数资料
| 型号： | LTC3561EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1A 8DFN |
| 标准包装： | 121 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.63 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 最高 4MHz |
| 电流 - 输出： | 1A |
| 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： | 8-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 产品目录页面： | 1335 (CN2011-ZH PDF) |
LTC3561
TYPICAL PERFOR A CE CHARACTERISTICS
Frequency Variation
vs Temperature
Efficiency vs Frequency
R DS(ON) vs V IN
10
8
100
V IN = 3.3V
V OUT = 2.5V
120
T A = 25 ° C
6
4
2
0
–2
–4
–6
–8
–10
95
90
85
I OUT = 500mA
T A = 25 ° C
115
110
105
100
95
90
SYNCHRONOUS SWITCH
MAIN SWITCH
–50
–25
0 25 50 75
100
125
0
1
2
3
4
2.5
3
3.5
4
4.5
5
5.5
6
TEMPERATURE ( ° C)
PI FU CTIO S
3561 G10
FREQUENCY (MHz)
3561 G11
V IN (V)
3561 G12
SHDN/R T (Pin 1): Combination Shutdown and Timing
Resistor Pin. The oscillator frequency is programmed by
connecting a resistor from this pin to ground. Forcing this
pin to SV IN causes the device to be shut down. In
shutdown all functions are disabled.
SGND (Pin 2): The Signal Ground Pin. All small signal
components and compensation components should be
connected to this ground (see Board Layout
Considerations).
SW (Pin 3): The Switch Node Connection to the Inductor.
This pin swings from PV IN to PGND.
PGND (Pin 4): Main Power Ground Pin. Connect to the
(–) terminal of C OUT , and (–) terminal of C IN .
PV IN (Pin 5): Main Supply Pin. Must be closely decoupled
to PGND.
SV IN (Pin 6): The Signal Power Pin. All active circuitry is
powered from this pin. Must be closely decoupled to
SGND. SV IN must be greater than or equal to PV IN .
V FB (Pin 7): Receives the feedback voltage from the
external resistive divider across the output. Nominal
voltage for this pin is 0.8V.
I TH (Pin 8): Error Amplifier Compensation Point. The
current comparator threshold increases with this control
voltage. Nominal voltage range for this pin is 0V to 1.5V.
Exposed Pad (Pin 9): Thermal Connection to PCB. This
pin should be soldered to ground to achieve rated
thermal performance.
3561f
4
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相关代理商/技术参数 |
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| LTC3562 | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Quad Synchronous Step-Down DC/DC Regulator 2 × 600mA, 2 × 400mA |
| LTC3562EUD#PBF | 功能描述:IC REG BUCK SYNC ADJ QUAD 20QFN 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 |
| LTC3562EUD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ QUAD 20QFN 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 |
| LTC3562EUD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Quad Synchronous Step-Down DC/DC Regulator 2 × 600mA, 2 × 400mA |
| LTC3562EUD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Quad Synchronous Step-Down DC/DC Regulator 2 × 600mA, 2 × 400mA |
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