Datasheet Linear Technology LTC3832 — 数据表

制造商	Linear Technology
系列	LTC3832

大功率降压同步DC / DC控制器，用于低压运行

数据表

预览并下载

PDF, 329 Kb, 语言: en, 文件上传: Sep 23, 2017, 页数: 24
High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

从文件中提取

价格

打包

	LTC3832EGN#PBF	LTC3832EGN#TRPBF
N	1	2
Package	SSOP-16 包装外形图	SSOP-16 包装外形图
Package Code	GN	GN
Package Index	05-08-1641 (GN16)	05-08-1641 (GN16)
Pin Count	16	16

参数化

Parameters / Models	LTC3832EGN#PBF	LTC3832EGN#TRPBF
Architecture	Constant Frequency Voltage Mode	Constant Frequency Voltage Mode
Demo Boards	DC469B	DC469B
Design Tools	LTspice File	LTspice File
Export Control	no	no
Features	No Rsense, Fixed Output, Resistor Set Frequency, External Synchronization	No Rsense, Fixed Output, Resistor Set Frequency, External Synchronization
Frequency, kHz	500	500
Frequency Adjust Range	100kHz - 500kHz	100kHz - 500kHz
Frequency Sync Range	100kHz - 500kHz	100kHz - 500kHz
Integrated Inductor	no	no
Ishutdown, µA	1	1
Isupply, mA	0.7	0.7
Max Phases	1	1
Monolithic	no	no
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	20	20
Polyphase	no	no
Sense Resistor	None	None
Switch Current, A	20	20
Synchronous	yes	yes
Topology	Buck	Buck
Vin Max, V	8	8
Vin Min, V	3	3
Vout Max, V	7.28	7.28
Vout Maximum	0.91VIN	0.91VIN
Vout Min, V	0.6	0.6
Vref Accuracy Over Temp, %	0.83	0.83

生态计划

	LTC3832EGN#PBF	LTC3832EGN#TRPBF
RoHS	Compliant	Compliant

其他选择

设计须知

下载
High Current Step-Down Controller Regulates to 0.6V Output from 3V Input &mdash DN322
PDF, 83 Kb, 档案已发布: Oct 1, 2003
从文件中提取
advertisement High Current Step-Down Controller Regulates to 0.6V Output
from 3V Input вЂ“ Design Note 322
Charlie Zhao and Wei Chen The LTC3832 uses a synchronous switching architecture with external N-channel MOSFETs. An adjustable
current limit is provided by sensing the current through
the drain-source on-resistance of the top MOSFET,
eliminating the need for a current sense resistor. The
LTC3832 has a 300kHz free-running switching frequency
that can be programmed or synchronized externally
from 100kHz to 500kHz. All of these features promote
a DC/DC converter solution with high efп¬Ѓciency and
small size.
The LTC3832 also includes a thermal protection circuit which disables both gate drivers if the junction
temperature reaches 150В°C. The chip resumes normal
operation when the temperature drops below 125В°C.
Design Examples
Figure 1 shows the schematic diagram and photo of a
compact 1V/7A step-down DC/DC converter that accepts
2.2ОјF 10О© 0.01ОјF LTC3832-1
SS VCC/PVCC2
COMP G1 15k
GND MBR0520T1 VIN = 5V
VOUT = 1V 95
90 …

文章

下载
Versatile LTC3830 and LTC3832 Deliver High Efficiency for Step-Down, Step-Up and Inverting Power Conversions &mdash LT Journal
PDF, 62 Kb, 档案已发布: May 1, 2002
从文件中提取
DESIGN IDEAS Versatile LTC3830 and LTC3832 Deliver
High Efficiency for Step-Down, Step-Up
and Inverting Power Conversions
by Wei Chen and Charlie Zhao
Introduction
The LTC3830 and the LTC3832 are
pin-to-pin compatible upgrades to the
LTC1430вЂ”a popular IC for low voltage step-down applications due to its
simplicity and high efficiency. The
LTC3830 and the LTC3832 remove
the LTC1430вЂ™s frequency foldback at
startup, thus eliminating inrush current and resulting output overshoot.
Other improvements over the
LTC1430 include tighter gm distribu-+
D3
MBR0520LT1
DZ
MMSZ5242B
5V +
PVCC1 PVCC2 +
2.2ВµF SENSE +
SENSE вЂ“
NC Doug La Porte Tiny and Efficient Boost Converter …

模型线

系列: LTC3832 (2)

LTC3832EGN#PBF LTC3832EGN#TRPBF

制造商分类

Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers

相关刊物

数据表 Datasheet Analog Devices LTC3832

联络人