参数资料
型号: LM3495MTC/NOPB
厂商: National Semiconductor
文件页数: 1/36页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 10A 16TSSOP
标准包装: 92
系列: PowerWise®
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.9 V ~ 18 V
PWM 型: 电流模式,混合
频率 - 开关: 200kHz ~ 1.5MHz
电流 - 输出: 10A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
供应商设备封装: 16-TSSOP
产品目录页面: 1300 (CN2011-ZH PDF)
配用: LM3495EVAL-ND - BOARD EVALUATION LM3495
其它名称: *LM3495MTC
*LM3495MTC/NOPB
LM3495MTC

SNVS410F – FEBRUARY 2006 – REVISED APRIL 2013
LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage
Check for Samples: LM3495
1
FEATURES
DESCRIPTION
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Input Voltage from 2.9V to 18V
Output Voltage Adjustable from 0.6V to 5.5V
Feedback Accuracy: ±1%
Low-Side Sensing, Programmable Current
Limit without Sense Resistor
Input Under Voltage Lockout
Hiccup Mode Current Limit Protection
Eliminates Thermal Runaway During Fault
Conditions
Internal Soft Start with Tracking Capability
200 kHz to 1.5 MHz Switching Frequency,
Synchronizable
On-Chip Gate Drivers
Soft Output Discharge During Shutdown
The LM3495 is a PWM buck regulator which
implements a unique emulated peak current mode
control. This control method eliminates the switching
noise which typically limits current mode operation at
extremely short duty cycles and high operating
frequency. The switching frequency is programmable
between 200 kHz and 1.5 MHz, and can also be
synchronized to an external clock. The LM3495 is
also very fault tolerant with both switch node short,
hiccup mode, and adaptive duty cycle limit protection.
A 0.6V 1% reference and glitch free pre-biased start-
up ensure the most demanding digital loads operate
reliably. Internal soft start and the ability to track the
output of another supply make the LM3495 versatile
and efficient.
APPLICATIONS
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Startup into Output Pre-Bias
Operation from a Single Input Rail
Adaptive Duty Cycle Limit
TSSOP-16 Package
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Wide Input Voltage Buck Converters with Low
Voltage, High Accuracy Outputs
Core Logic Regulators
High-Efficiency Buck Regulation
Typical Application
C F
C DD
D1
V IN
FPWM
VIN
VLIN5
BOOST
C INX
C IN
C B
C SYNC
R FRQ
FREQ/SYNC
HG
Q1
VLIN5
TRACK
LM3495
SW/CSH
ILIM
R ILIM
L1
V O
R C
C C
COMP/SD
LG
Q2
C O
CSL
R FB1
FB
SNS
SGND
PGND
R FB2
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2006–2013, Texas Instruments Incorporated
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