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参数资料
| 型号： | LTC3538EDCB#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC ADJ 8DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.8 V ~ 5.25 V |
| 输入电压： | 2.4 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 800mA |
| 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： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN（3x2） |
LTC3538
PIN FUNCTIONS
FB (Pin 1): Feedback Input to Error Amplifer. Connect
resistive divider tap from V OUT to this pin to set the output
voltage. The output voltage can be adjusted from 1.8V to
5.25V. Referring to the Block Diagram the output voltage
is given by:
V OUT = 1V ? (1 + R1/R2)
V C (Pin 2): Error Ampli?er Output. A frequency compensa-
tion network should be connected between this pin and FB
to compensate the loop. See Closing the Feedback Loop
section of the datasheet for further information. Pulling
V C below 0.25V disables the LTC3538.
GND (Pin 3): Ground.
BURST (Pin 4): Burst Mode Select Input.
BURST = Low for ?xed frequency PWM operation
BURST = High for Burst Mode operation
V OUT (Pin 5): Power Supply Output. This pin should be
SW2 (Pin 6): Switch Pin where the Internal Switches
C and D are Connected. An optional Schottky diode can
be connected from SW2 to V OUT for a moderate ef?ciency
improvement. Keep the trace length as short as possible
to minimize EMI.
SW1 (Pin 7): Switch Pin where the Internal Switches A and
B are Connected. Connect an inductor from SW1 to SW2.
An optional Schottky diode can be connected from SW1 to
ground for a moderate ef?ciency improvement. Keep the
trace length as short as possible to minimize EMI.
V IN (Pin 8): Input Supply. This input provides power to
the IC and also supplies current to switch A. A ceramic
bypass capacitor (4.7μF or larger) is recommended as
close to V IN and GND as possible.
Exposed Pad (Pin 9): GND. The exposed pad must be
electrically connected to the board ground for proper
electrical and thermal performance.
connected to a low ESR output capacitor. The capacitor
should be placed as close to the IC as possible and should
have a short return to GND.
3538fb
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3539 | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3539-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3539EDCB#PBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Cut Tape 2A, 1MHz Synchronous Step-Up DC/DC Converter in 2m |
| LTC3539EDCB#TRMPBF | 功能描述:IC REG BOOST SYNC ADJ 2A 8DFN 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 |
| LTC3539EDCB#TRPBF | 功能描述:IC REG BOOST SYNC ADJ 2A 8DFN 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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