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LTC1701BES5#TR: 产品描述IC reg buck adj 0.5A tsot23-5; 产品类别电源/电源管理电源电路; 文件大小97KB，共2页; 制造商Linear ( ADI ); 官网地址http://www.analog.com/cn/index.html

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LTC1701BES5#TR概述

IC reg buck adj 0.5A tsot23-5

LTC1701BES5#TR规格参数

参数名称	属性值
Brand Name	Linear Technology
是否Rohs认证	不符合
厂商名称	Linear ( ADI )
零件包装代码	SOT
包装说明	LSSOP,
针数	5
制造商包装代码	S5
Reach Compliance Code	_compli
ECCN代码	EAR99
Is Samacsys	N
模拟集成电路 - 其他类型	SWITCHING REGULATOR
控制模式	CURRENT-MODE
控制技术	CONSTANT OFF TIME
最大输入电压	5.5 V
最小输入电压	2.5 V
标称输入电压	3.3 V
JESD-30 代码	R-PDSO-G5
JESD-609代码	e0
长度	2.95 mm
湿度敏感等级	1
功能数量	1
端子数量	5
最高工作温度	85 °C
最低工作温度	-40 °C
最大输出电流	1.1 A
封装主体材料	PLASTIC/EPOXY
封装代码	LSSOP
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	255
认证状态	Not Qualified
座面最大高度	1.45 mm
表面贴装	YES
切换器配置	BUCK
最大切换频率	1000 kHz
温度等级	INDUSTRIAL
端子面层	Tin/Lead (Sn/Pb)
端子形式	GULL WING
端子节距	0.95 mm
端子位置	DUAL
处于峰值回流温度下的最长时间	40
宽度	1.625 mm
Base Number Matches	1

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DC289 Introduction

Description

Demonstration Circuit DC289 is a step-down (buck) regulator using the LTC

1701. The

combination of the LTC1701’s tiny SOT-23 package and high switching frequency

results in a highly efficient application in a small board space. It is ideal for cell phones

and other portable electronics operating from one Li-Ion cell or three to four NiCd or

NiMH cells. DC289 operates from a 2.5 to 5.5V input voltage range and is capable of

providing 0.5A with a jumper-selectable output voltage of 1.5/2.5/3.3V-ADJ.

This board highlights the capabilities of the LTC1701, which uses a current mode,

constant off-time architecture to control an internal P-channel power MOSFET at about

1MHz. This high performance power supply occupies less than 0.3 square inches and has

low output voltage ripple and fast transient response.

At low output currents, the LTC1701 automatically switches to Burst Mode™ operation

to maintain high operating efficiencies by minimizing supply current. The part can be

shut down by pulling the I

/RUN pin low, further reducing the supply current to less

than 1µA.

In dropout, the P-channel MOSFET is turned on continuously (100% duty cycle),

providing low dropout operation with V

OUT

≅

, thereby maximizing battery life.

Quick Start Guide

Demonstration Board DC289 is easy to set up for evaluation of the LTC1701. Please

follow the procedure below for proper operation:

1. Move jumper JP1 to the appropriate position for the required output voltage. For

voltages other than the preset value, make sure you install the calculated resistor at

the pad provided for R7.

2. To shut down the circuit, connect the I

/RUN terminal to ground. When the part is

not shut down, be careful not to add excessive capacitance to the I

/RUN pin, since

it affects the transient response.

3. Connect the input power supply to the V

and GND terminals.

4. Connect the load between the V

OUT

and GND terminals. Refer to the connection

diagram (Figure 1) for proper measurement equipment setup.

XXXYYYY

LTC1701BES5#TR相似产品对比

	LTC1701BES5#TR	LTC1701BES5#TRPBF	LTC1701BES5#TRM	LTC1701ES5#TR	LTC1701ES5#TRM	DC289A	LTC1701ES5#TRPBF	LTC1701ES5#TRMPBF	LTC1701BES5#TRMPBF
描述	IC reg buck adj 0.5A tsot23-5	IC reg buck adj 0.5A tsot23-5	IC reg buck adj 0.5A tsot23-5	IC reg buck adj 0.5A tsot23-5	IC reg buck adj 0.5A tsot23-5	board eval for ltc1701es5	IC REG BUCK ADJ 0.5A TSOT23-5	IC REG BUCK ADJ 0.5A TSOT23-5	IC REG BUCK ADJ 0.5A TSOT23-5
Brand Name	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	-	Linear Technology	Linear Technology	Linear Technology
是否Rohs认证	不符合	符合	不符合	不符合	不符合	-	符合	符合	符合
厂商名称	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
零件包装代码	SOT	SOT	SOT	SOT	SOT	-	SOT	SOT	SOT
包装说明	LSSOP,	LSSOP,	LSSOP,	PLASTIC, SOT-23, 5 PIN	LSSOP,	-	LSSOP,	LSSOP,	LSSOP,
针数	5	5	5	5	5	-	5	5	5
制造商包装代码	S5	S5	S5	S5	S5	-	S5	S5	S5
Reach Compliance Code	_compli	compli	_compli	_compli	_compli	-	compliant	compliant	compliant
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	-	EAR99	EAR99	EAR99
Is Samacsys	N	N	N	N	N	-	N	N	N
模拟集成电路 - 其他类型	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	-	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR
控制模式	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	-	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
控制技术	CONSTANT OFF TIME	CONSTANT OFF TIME	CONSTANT OFF TIME	CONSTANT OFF TIME	CONSTANT OFF TIME	-	CONSTANT OFF TIME	CONSTANT OFF TIME	CONSTANT OFF TIME
最大输入电压	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	-	5.5 V	5.5 V	5.5 V
最小输入电压	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	-	2.5 V	2.5 V	2.5 V
标称输入电压	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	-	3.3 V	3.3 V	3.3 V
JESD-30 代码	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	-	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5
JESD-609代码	e0	e3	e0	e0	e0	-	e3	e3	e3
长度	2.95 mm	2.95 mm	2.95 mm	2.95 mm	2.95 mm	-	2.95 mm	2.95 mm	2.95 mm
湿度敏感等级	1	1	1	1	1	-	1	1	1
功能数量	1	1	1	1	1	-	1	1	1
端子数量	5	5	5	5	5	-	5	5	5
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	-	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-	-40 °C	-40 °C	-40 °C
最大输出电流	1.1 A	1.1 A	1.1 A	1.1 A	1.1 A	-	1.1 A	1.1 A	1.1 A
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP	-	LSSOP	LSSOP	LSSOP
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	-	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	255	250	235	235	235	-	260	250	260
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm	-	1.45 mm	1.45 mm	1.45 mm
表面贴装	YES	YES	YES	YES	YES	-	YES	YES	YES
切换器配置	BUCK	BUCK	BUCK	BUCK	BUCK	-	BUCK	BUCK	BUCK
最大切换频率	1000 kHz	1000 kHz	1000 kHz	1000 kHz	1000 kHz	-	1000 kHz	1000 kHz	1000 kHz
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	-	GULL WING	GULL WING	GULL WING
端子节距	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm	-	0.95 mm	0.95 mm	0.95 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	-	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	40	NOT SPECIFIED	20	20	20	-	30	NOT SPECIFIED	30
宽度	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm	-	1.625 mm	1.625 mm	1.625 mm
Base Number Matches	1	1	1	1	1	-	1	1	1

LTC1701BES5#TR

LTC1701BES5#TR概述

LTC1701BES5#TR规格参数

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