LTC1699-81 - SMBus VID Voltage Programmers

LTC1699-80 - SMBus VID Voltage Programmers - Linear Technology（凌力尔特）

The LTC1699-80, LTC1699-81 and LTC1699-82 are precision (±0.35% max), digitally programmed resistor dividers that comply with Intel 5-bit mobile (LTC1699-80), desktop VRM8.4 (LTC1699-81) and VRM9.0 (LTC1699-82) VID specifications. Each IC can switch the output of a DC/DC converter between two set voltages. A digital input pin, SEL, selects one of two divider settings stored into registers via a 2-wire SMBus interface.

The SMBus interface uses Write Word protocol to setup the registers and to turn the DC/DC converters on or off. Read Word protocol is used to verify register contents and to return the On/Off status of the converters. The LTC1699-80, LTC1699-81 and LTC1699-82 incorporate safeguards against errors due to bus conflicts.

Three open-drain N-channel outputs (CPU_ON, IO_ON and CLK_ON) are provided to turn DC/DC converter supplies on or off via their RUB/SS inputs. A global control pin, VRON is used to turn the converters on or off simultaneously. An internal timer pulls the PGOOD pin low for 50µs if the divider setting changes or the converters are turned on via the SMBus and the VRON pin.

Fully Compliant with Intel 5-Bit Mobile (LTC1699-80) and Desktop VRM8.4 (LTC1699-81) and VRM9.0 (LTC1699-82) VID Specificatio

Precision ±0.35% Programmable Resistor Divider for Use with 0.8V Referenced DC/DC Converters

Two Different Divider Settings Can Be Stored Using a 2-Wire SMBus Serial Interface (Rev 1.1)

Built-In Safeguards Minimize Misprogramming Due to Bus Conflicts

Three Open-Drain Pins (CPU_ON, IO_ON, CLK_ON) and a Global Control Pin (VRON) to Shutdown or Soft-Start 3 DC/DC Converters Simul

PGOOD Pin and 50µs PGOOD Timer

Available in MSOP-8 and SSOP-16 Package

Intel Desktop Pentium® III Power Supply

Intel Mobile Pentium® Power Supply with Intel SpeedStep™ Technology

Desktop AMD Athlon™ Power Supply

Software Programmable Remote Power Supply

Power Supplies with Voltage Margining

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)
LTC1699EGN-80	SSOP-16	E	$2.80	$2.50
LTC1699EGN-80#PBF	SSOP-16	E	$2.80	$2.50
LTC1699EGN-80#TR	SSOP-16	E		$2.61
LTC1699EGN-80#TRPBF	SSOP-16	E		$2.61
LTC1699EGN-81	SSOP-16	E	$2.80	$2.50
LTC1699EGN-81#PBF	SSOP-16	E	$2.80	$2.50
LTC1699EGN-81#TR	SSOP-16	E		$2.61
LTC1699EGN-81#TRPBF	SSOP-16	E		$2.61
LTC1699EGN-82	SSOP-16	E	$2.80	$2.50
LTC1699EGN-82#PBF	SSOP-16	E	$2.80	$2.50
LTC1699EGN-82#TR	SSOP-16	E		$2.61
LTC1699EGN-82#TRPBF	SSOP-16	E		$2.61
LTC1699EMS8-80	MS-8	E	$2.40	$2.15
LTC1699EMS8-80#PBF	MS-8	E	$2.40	$2.15
LTC1699EMS8-80#TR	MS-8	E		$2.21
LTC1699EMS8-80#TRPBF	MS-8	E		$2.21
LTC1699EMS8-81	MS-8	E	$2.40	$2.15
LTC1699EMS8-81#PBF	MS-8	E	$2.40	$2.15
LTC1699EMS8-81#TR	MS-8	E		$2.21
LTC1699EMS8-81#TRPBF	MS-8	E		$2.21
LTC1699EMS8-82	MS-8	E	$2.40	$2.15
LTC1699EMS8-82#PBF	MS-8	E	$2.40	$2.15
LTC1699EMS8-82#TR	MS-8	E		$2.21
LTC1699EMS8-82#TRPBF	MS-8	E		$2.21

LT4320 / LT4320-1 - 理想二极管桥控制器

LT8705 - 80V V_IN 和 V_OUT 同步、四开关、降压-升压型 DC/DC 控制器

LTC4000 - 用于电池充电和电源管理的高电压、大电流控制器

LTC4364 - 具理想二极管的浪涌抑制器

LTC2945 - 宽范围 I²C 功率监视器

LT3080 - 可调 1.1A、单电阻、低压差稳压器

LTC4020 - 55V、降压-升压型多化学组成电池充电器

LTC4120 / LTC4120-4.2 - 无线电源接收器和 400mA 降压型电池充电器

LT3796 - 具双电流检测的 100V 恒定电流和恒定电压控制器

LT3652 - 用于太阳能电源的功率跟踪 2A 电池充电器

• LTC1771 - LTC1771是10μA Quiescent Current High Efficiency Step-Down DC/DC Controller
• LT1460GCZ-2.5 - LT1460GCZ-2.5是微功率、精准串联基准系列
• RH137HDICE - RH137HDICE是Negative Adjustable Regulator
• LTC1569-6 - LTC1569-6是Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter
• LT1460ACN8-5 - LT1460ACN8-5是微功率、精准串联基准系列
• LT1460ACN8-10 - LT1460ACN8-10是微功率、精准串联基准系列
• LTC5542 - LTC5542是1.6GHz 至 2.7GHz、高动态范围、下变频混频器
• LT1940L - LT1940L是双通道、单片 1.4A、1.1MHz 降压型开关稳压器
• LT1721 - LT1721是具轨至轨输出的四通道、4.5ns、单电源 3V/5V 比较器
• LTC7138 - LTC7138是高效率、140V、400mA 降压型稳压器