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LTC3442EDE#TRPBF: 产品描述IC REG BUCK BOOST ADJ 1.2A 12DFN; 产品类别电源/电源管理电源电路; 文件大小130KB，共5页; 制造商Linear ( ADI ); 官网地址http://www.analog.com/cn/index.html; 标准

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LTC3442EDE#TRPBF概述

IC REG BUCK BOOST ADJ 1.2A 12DFN

LTC3442EDE#TRPBF规格参数

参数名称	属性值
Brand Name	Linear Technology
是否Rohs认证	符合
厂商名称	Linear ( ADI )
零件包装代码	DFN
包装说明	HVSSON, SOLCC12,.12,20
针数	12
制造商包装代码	DE/UE
Reach Compliance Code	compliant
ECCN代码	EAR99
模拟集成电路 - 其他类型	SWITCHING REGULATOR
控制模式	VOLTAGE-MODE
控制技术	PULSE WIDTH MODULATION
最大输入电压	5.5 V
最小输入电压	2.4 V
标称输入电压	3.6 V
JESD-30 代码	R-PDSO-N12
JESD-609代码	e3
长度	4 mm
湿度敏感等级	1
功能数量	1
端子数量	12
最高工作温度	85 °C
最低工作温度
封装主体材料	PLASTIC/EPOXY
封装代码	HVSSON
封装等效代码	SOLCC12,.12,20
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	260
认证状态	Not Qualified
座面最大高度	0.8 mm
表面贴装	YES
切换器配置	BUCK-BOOST
最大切换频率	2000 kHz
技术	CMOS
温度等级	OTHER
端子面层	Matte Tin (Sn)
端子形式	NO LEAD
端子节距	0.5 mm
端子位置	DUAL
处于峰值回流温度下的最长时间	30
宽度	3 mm

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SYNCHRONOUS BUCK-BOOST CONVERTER WITH AUTOMATIC BURST MODE

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 799

LTC3442EDE

DESCRIPTION

Demonstration Circuit 799 is a high efficiency syn-

chronous Buck-Boost converter using the LTC3442.

The input range is from 2.4V to 5.5V, making it ideal

for single-cell Lithium-Ion or three-cell NiCd/NiMH

battery applications. This converter provides up to

95% efficiency, much higher than traditional Buck-

Boost converters. For 2.7V minimum input voltage,

this converter can provide up to 1.2A load current.

The output voltage is set at 3.3V. A different output

voltage in the range of 2.4V to 5.25V can be obtained

by changing one of the feedback resistors. The

switching frequency is set at 1MHz, which is a good

trade-off between efficiency and size. Adjusting RT

can program the frequency between 300kHz to 2MHz.

In shutdown, the IC itself draws less than 1µA.

Table 1. Performance Summary (T

= 25°C unless otherwise noted)

PARAMETER

Minimum Input Voltage

Maximum Input Voltage

Output Voltage V

OUT

Maximum Output Current

Typical Output Ripple V

OUT

Typical Switching Frequency

Efficiency (Fixed Frequency Mode)

CONDITION

-40°C to 85°C

= 2.5V to 5.5V, I

OUT

= 0A to 1.1A

= 2.5V

= 2.7V

= 3.6V, I

OUT

= 1.1A (20MHz BW)

RT=43.2K

= 4.2V, I

OUT

= 0.2A

= 4.2V, I

OUT

= 1.0A

Off (40°C to 85°C)

On (-40°C to 85°C)

VALUE

2.4V

5.5V

3.3V ±4%

1.1A

1.2A

45mV

1MHz

93% Typical

90% Typical

0.4V MAX

1.4V MIN

The LTC3442 has manual or programmable Auto-

matic Burst Mode operation and programmable aver-

age input current limit.

When using long wire connections to the input

source (such as wall adaptors), there can be input

over voltage transients during initial plug-in. C2 is

installed on DC799 to damp the possible voltage

transients. C2 is not needed for any application when

the input source is close to the regulator. Please refer

to Application Note 88 for details.

Design files for this circuit board are available. Call

the LTC factory.

LTC is a trademark of Linear Technology Corporation

On/Off Control

QUICK START PROCEDURE

Demonstration circuit 799 is easy to set up to evalu-

ate the performance of the LTC3442. Refer to Figure 1

for proper measurement equipment setup and follow

the procedure below:

LTC3442EDE#TRPBF相似产品对比

	LTC3442EDE#TRPBF	DC799A	LTC3442EDE#PBF
描述	IC REG BUCK BOOST ADJ 1.2A 12DFN	board eval for ltc3442ede	可输出电流：1.2A 开关工作频率：300kHz ~ 2MHz 输出类型：Adjustable 输出电压的路数：1 功能类型：Step-Up/Step-Down 输出配置：Positive 具有自动突发模式操作的微功率同步降压-升压 DC/DC 转换器
Brand Name	Linear Technology	-	Linear Technology
是否Rohs认证	符合	-	符合
厂商名称	Linear ( ADI )	-	Linear ( ADI )
零件包装代码	DFN	-	DFN
包装说明	HVSSON, SOLCC12,.12,20	-	HVSSON, SOLCC12,.12,20
针数	12	-	12
制造商包装代码	DE/UE	-	DE/UE
Reach Compliance Code	compliant	-	compliant
ECCN代码	EAR99	-	EAR99
模拟集成电路 - 其他类型	SWITCHING REGULATOR	-	SWITCHING REGULATOR
控制模式	VOLTAGE-MODE	-	VOLTAGE-MODE
控制技术	PULSE WIDTH MODULATION	-	PULSE WIDTH MODULATION
最大输入电压	5.5 V	-	5.5 V
最小输入电压	2.4 V	-	2.4 V
标称输入电压	3.6 V	-	3.6 V
JESD-30 代码	R-PDSO-N12	-	R-PDSO-N12
JESD-609代码	e3	-	e3
长度	4 mm	-	4 mm
湿度敏感等级	1	-	1
功能数量	1	-	1
端子数量	12	-	12
最高工作温度	85 °C	-	85 °C
封装主体材料	PLASTIC/EPOXY	-	PLASTIC/EPOXY
封装代码	HVSSON	-	HVSSON
封装等效代码	SOLCC12,.12,20	-	SOLCC12,.12,20
封装形状	RECTANGULAR	-	RECTANGULAR
封装形式	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH	-	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	260	-	260
认证状态	Not Qualified	-	Not Qualified
座面最大高度	0.8 mm	-	0.8 mm
表面贴装	YES	-	YES
切换器配置	BUCK-BOOST	-	BUCK-BOOST
最大切换频率	2000 kHz	-	2000 kHz
技术	CMOS	-	CMOS
温度等级	OTHER	-	OTHER
端子面层	Matte Tin (Sn)	-	Matte Tin (Sn)
端子形式	NO LEAD	-	NO LEAD
端子节距	0.5 mm	-	0.5 mm
端子位置	DUAL	-	DUAL
处于峰值回流温度下的最长时间	30	-	30
宽度	3 mm	-	3 mm

LTC3442EDE#TRPBF

LTC3442EDE#TRPBF概述

LTC3442EDE#TRPBF规格参数

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LTC3442EDE#TRPBF相似产品对比

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