参数资料
型号: LTM4609IV#PBF
厂商: Linear Technology
文件页数: 3/28页
文件大小: 0K
描述: IC BUCK/BOOST SYNC ADJ 4A 141LGA
产品培训模块: Buck-Boost uModule Regulators
High Voltage µModule DC/DC Regulators
Power Module vs. Discrete DC to DC
软件下载: LTM4609 Spice Model
设计资源: DC1477A Design Files
LTM4609IV#PBF Footprint.bxl
特色产品: μModule Products
DC/DC μModule Regulator Family
标准包装: 119
系列: µModule®
类型: 非隔离(POL)
输出数: 1
电压 - 输入(最小): 4.5V
电压 - 输入(最大): 36V
Voltage - Output 1: 0.8 ~ 34 V
电流 - 输出(最大): 4A
安装类型: 表面贴装
封装/外壳: 141-LGA
尺寸/尺寸: 0.59" L x 0.59" W x 0.11" H(15.0mm x 15.0mm x 2.8mm)
包装: 托盘
工作温度: -40°C ~ 85°C
效率: 98%
配用: DC1477A-ND - BOARD EVAL LTM4609
LTM4609
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
temperature range (Note 2), otherwise specifications are at T A = 25°C, V IN = 12V, per typical application (front page) configuration.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Specifications
V IN(DC)
Input DC Voltage
l
4.5
36
V
V IN(UVLO)
I Q(VIN)
Undervoltage Lockout Threshold
Input Supply Bias Current
Normal
Standby
Shutdown Supply Current
V IN Falling (–40°C to 85°C)
V IN Falling (–55°C to 125°C)
V RUN = 0V, V STBYMD > 2V
V RUN = 0V, V STBYMD = Open
l
l
3.4
3.4
2.8
1.6
35
4
4.5
60
V
V
mA
mA
μA
Output Specification s
I OUTDC
Output Continuous Current Range
(Note 3)
V IN = 32V, V OUT = 12V
V IN = 6V, V OUT = 12V
10
4
A
A
Δ V FB /V FB(NOM)
Line Regulation Accuracy
V IN = 4.5V to 36V, V COMP = 1.2V (Note 4)
0.002
0.02
%/V
Δ V FB /V FB(LOAD)
Load Regulation Accuracy
V COMP = 1.2V to 0.7V
V COMP = 1.2V to 1.8V (Note 4)
l
l
0.15
–0.15
0.5
–0.5
%
%
Switch Section (Not e 5)
M1 t r
M1 t f
M3 t r
M3 t f
M2, M4 t r
M2, M4 t f
t 1d
t 2d
t 3d
t 4d
Mode Transition 1
Mode Transition 2
M1 R DS(ON)
Turn-On Time
Turn-Off Time
Turn-On Time
Turn-Off Time
Turn-On Time
Turn-Off Time
M1 Off to M2 On Delay
M2 Off to M1 On Delay
M3 Off to M4 On Delay
M4 Off to M3 On Delay
M2 Off to M4 On Delay
M4 Off to M2 On Delay
Static Drain-to-Source
On-Resistance
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Drain to Source Voltage V DS = 12V,
Bias Current I SW = 10mA
Bias Current I SW = 3A
50
40
25
20
20
20
50
50
50
50
220
220
10
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
M2 R DS(ON)
M3 R DS(ON)
M4 R DS(ON)
Static Drain-to-Source
On-Resistance
Static Drain-to-Source
On-Resistance
Static Drain-to-Source
On-Resistance
Bias Current I SW = 3A
Bias Current I SW = 3A
Bias Current I SW = 3A
14
14
14
20
20
20
Oscillator and Phase-Locked Loop
f NOM
f LOW
Nominal Frequency
Lowest Frequency
V PLLFLTR = 1.2V
V PLLFLTR = 0V
260
170
300
200
330
220
kHz
kHz
4609ff
For more information www.linear.com/LTM4609
3
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