参数资料
| 型号： | LTC3428EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 4A 10DFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.6 V ~ 5.25 V |
| 输入电压： | 1.6 V ~ 4.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LTC3428
PIN FUNCTIONS
PGNDA, PGNDB (Pins 1, 10, 11 (Exposed Pad)): Power
Ground for the IC. Tie directly to local ground plane.
SWA (Pin 2), SWB (Pin 9): Phase B and Phase A Switch
Pins. The inductor and Schottky diodes for each phase
are connected to these pins. Minimize trace length to
reduce EMI.
V OUT (Pin 3): Power Supply Output and Bootstrapped
Power Source for the IC. Connect low ESR output ?lter
capacitors from this pin to the ground plane.
SHDN (Pin 4): Shutdown Pin. Grounding this pin shuts
down the IC. Connect to a voltage greater than 1.5V to
enable.
BLOCK DIAGRAM
FB
ERROR AMPLIFIER/SOFT-START
FB
V C (Pin 5): Error Amp Output. A frequency compensation
network is connected to this pin to compensate the boost
converter loop.
FB (Pin 6): Feedback Pin. A resistor divider from V OUT is
connected here to set the output voltage according to
V OUT = 1.243 ? (1 + R1 / R2)
AGND (Pin 7): Signal Ground for the IC. Connect to ground
plane near feedback resistor divider.
V IN (Pin 8): Input Supply Pin. Bypass V IN with a low ESR
ceramic capacitor of at least 4.7μF. X5R and X7R dielectrics
are preferred for their superior voltage and temperature
characteristics.
V IN
V C
–
+
1.243V
V OUT
I SENB
–
CURRENT
LIMIT
I SENB
SWB
RAMP/
SLOPE COMP
–
+
PWM
COMP
PWM
LOGIC
DRIVER
PGNDB
CLK B
OSCILLATOR
CHANNEL B
CHANNEL A
TSD
CLK A
SWA
RAMP/
SLOPE COMP
+
–
PWM
COMP
PWM
LOGIC
DRIVER
PGNDA
I SENA
–
SHDN
SHUTDOWN
V C
AGND
5pF
CURRENT
LIMIT
I SENA
3428 BD
3428fb
5
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3429ES6#TRM | IC REG BST SYNC ADJ .6A TSOT23-6 |
| LTC3440EDD#TRPBF | IC REG BUCK BOOST SYNC ADJ 10DFN |
| LTC3441EDE#TRPBF | IC REG BUCK BOOST SYNC ADJ 12DFN |
| LTC3442EDE#TRPBF | IC REG BUCK BOOST SYNC ADJ 12DFN |
| LTC3443EDE#TRPBF | IC REG BUCK BOOST SYNC ADJ 12DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3429 | 制造商:LINER 制造商全称:Linear Technology 功能描述:600mA, 500kHz Micropower Synchronous Boost Converter with Output Disconnect |
| LTC3429B | 制造商:LINER 制造商全称:Linear Technology 功能描述:600mA, 500kHz Micropower Synchronous Boost Converter with Output Disconnect |
| LTC3429BES6 | 制造商:LINER 制造商全称:Linear Technology 功能描述:600mA, 500kHz Micropower Synchronous Boost Converter with Output Disconnect |
| LTC3429BES6#PBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, CUT TAPE 600mA, 500kHz Synch Boost Converter w/ Output in T |
| LTC3429BES6#TRMPBF | 功能描述:IC REG BST SYNC ADJ .6A TSOT23-6 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°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 |
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