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| 型号： | LTC3526BEDC#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 0.5A 6DFN |
| 标准包装： | 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： | 0.5 V ~ 5 V |
| PWM 型： | 电流模式，Burst Mode? |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 500mA |
| 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： | 6-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-DFN-EP（2x2） |
LTC3526/LTC3526B
BLOCK DIAGRAM
V IN
0.85V
TO 5V
C IN
2.2 μ F
3
V OUT
V BEST
ANTI-RING
V IN
V B
L1
4.7μH
V SEL
1
SW
WELL
SWITCH
V OUT
6
V OUT
1.6V
TO 5.25V
4
SHDN
4M
SHUTDOWN
SHUTDOWN
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
– +
I ZERO
COMP
FB
5
R2
R1
C OUT
4.7 μ F
V REF
UVLO
V REF
I PK
I PK
COMP
SLOPE
COMP
I ZERO
ERROR AMP
SLEEP COMP
START-UP
+
V REF
1MHz
OSC
CLK
LOGIC
MODE
CONTROL
–
CLAMP
THERMAL
SHUTDOWN
TSD
EXPOSED
PAD
7
WAKE
GND
2
C SS
3526 BD
OPERATION
(Refer to Block Diagram)
The LTC3526/LTC3526B are 1MHz synchronous boost
converters housed in a 6-lead 2mm × 2mm DFN package.
With the ability to start up and operate from inputs less
than 1V, these devices feature fixed frequency, current
mode PWM control for exceptional line and load regula-
tion. The current mode architecture with adaptive slope
compensation provides excellent transient load response,
requiring minimal output filtering. Internal soft-start and
internal loop compensation simplifies the design process
while minimizing the number of external components.
With its low R DS(ON) and low gate charge internal N-chan-
nel MOSFET switch and P-channel MOSFET synchronous
rectifier, the LTC3526 achieves high efficiency over a wide
range of load currents. Automatic Burst Mode operation
maintains high efficiency at very light loads, reducing
the quiescent current to just 9μA. Operation can be best
understood by referring to the Block Diagram.
LOW VOLTAGE START-UP
The LTC3526/LTC3526B include an independent start-up
oscillator designed to start up at an input voltage of 0.85V
(typical). Soft-start and inrush current limiting are provided
during start-up, as well as normal mode.
When either V IN or V OUT exceeds 1.4V typical, the IC
enters normal operating mode. When the output voltage
3526bfd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3526BEDC-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN |
| LTC3526EDC | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm X 2mm DFN |
| LTC3526EDC#PBF | 制造商:Linear Technology 功能描述:IC SYNC STEP-UP DC/DC CONVERTER DFN-6 制造商:Linear Technology 功能描述:IC, SYNC STEP-UP DC/DC CONVERTER, DFN-6 制造商:Linear Technology 功能描述:IC, SYNC STEP-UP DC/DC CONVERTER, DFN-6; Primary Input Voltage:6V; No. of Outputs:1; Output Voltage:5.25V; Output Current:500mA; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LTC3526EDC#TRMPBF | 功能描述:IC REG BOOST SYNC ADJ 0.5A 6DFN 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 |
| LTC3526EDC#TRPBF | 功能描述:IC REG BOOST SYNC ADJ 0.5A 6DFN 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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