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LTC1470 - LTC1470是Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches

LTC1470是LINEAR凌力尔特公司的一款PCMCIA 开关和驱动器产品，LTC1470是LTC1470是Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches，本站介绍了LTC1470的封装应用图解、特点和优点、功能等，并给出了与LTC1470相关的LINEAR元器件型号供参考。

LTC1470 - LTC1470是Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches - PCMCIA 开关和驱动器 - 电源管理 - 凌力尔特

LTC1470 - Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches

LTC1470 - Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches - Linear Technology（凌力尔特）

功能描述

The LTC1470 switches the VCC pins of a Personal Computer Memory Card International Association (PCMCIA) card slot between three operating states: OFF, 3.3V and 5V. Two low RDS(ON) N-channel power MOSFETs are driven by a built-in charge pump which generates a voltage higher than the supply voltage to fully enhance each switch when selected by the input control logic.

The LTC1470 inputs are compatible with industry standard PCMCIA controllers. A built-in XOR ensures that both switches are never on at the same time. This function also makes the LTC1470 compatible with both active-low and active-high controllers (see Applications Information section). The switch rise times are controlled to eliminate power supply glitching.

The LTC1470 features built-in SafeSlotTM current limit and thermal shutdown. The output is limited to 1A during short circuit to ground but 2A of peak operating current is allowed.

The LTC1471 is a dual version of the LTC1470 and is available in a 16-pin SO package.

特点

Single 3.3V/5V Switch in 8-Pin SO Package

Dual 3.3V/5V Switch in 16-Pin SO Package

Built-In Current Limit and Thermal Shutdown

Built-In Charge Pumps (No 12V Required)

Extremely Low RDS(ON) MOSFET Switches

Output Current Capability: 1A

Inrush Current Limited (Drives 150μF Loads)

Quiescent Current in Standby: 1μA

No Parasitic Body Diodes

Built-In XOR Function Eliminates “Glue” Logic

Break-Before-Make Switching

Controlled Rise and Fall Times

应用

Notebook Computers

Palmtop Computers

Pen-Based Computers

Handi-Terminals

PC Card Reader/Writers

3.3V/5V Power Supply Switch

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1470CS8	SO-8	C	$3.00	$2.45
LTC1470CS8#PBF	SO-8	C	$3.00	$2.45
LTC1470CS8#TR	SO-8	C		$2.51
LTC1470CS8#TRPBF	SO-8	C		$2.51
LTC1470ES8	SO-8	E	$3.84	$2.70
LTC1470ES8#PBF	SO-8	E	$3.84	$2.70
LTC1470ES8#TR	SO-8	E		$2.76
LTC1470ES8#TRPBF	SO-8	E		$2.76

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LTC1470 - LTC1470是Single and Dual PCMCIA Protected 3.3V/5V VCC Switches

LTC1470 - LTC1470是Single and Dual PCMCIA Protected 3.3V/5V V_CC Switches