LTC3100
9
3100fb
For more information www.linear.com/LTC3100
RUN Pin Threshold Voltage
Start-Up Delay Times vs V
IN
TYPICAL PERFORMANCE CHARACTERISTICS T
A
= 25癈, unless otherwise specified.
PIN FUNCTIONS
SWBST (Pin 1): Switch Pin for the Boost Converter.
Connect the boost inductor between SWBST and V
INBST
.
Keep PCB trace lengths as short and wide as possible to
reduce EMI. If the inductor current falls to zero, an internal
anti-ringing switch is connected from SWBST to V
INBST
to minimize EMI.
V
BST
(Pin 2): Output Voltage for the Boost Converter
(which is the drain of the internal synchronous rectifier)
and Input Voltage for the LDO. PCB trace length from V
BST
to the output filter capacitor (10礔 minimum) should be
as short and wide as possible.
V
LDO
(Pin 3): Output Voltage of the LDO Regulator. Connect
a 1礔 ceramic capacitor between V
LDO
and GND. Larger
values of capacitance may be used for higher PSRR or
improved transient response.
SWBK (Pin 4): Switch Pin for the Buck Converter. Connect
the buck inductor between SWBK and the buck output
filter capacitor. Keep PCB trace lengths as short and wide
as possible to reduce EMI.
V
INBK
(Pin 5): Input Voltage for the Buck Converter. Connect
a minimum of 4.7礔 ceramic decoupling capacitor from
this pin to ground.
PGBK (Pin 6): Open-Drain Output That Pulls Low When
FBBK Is More Than 8% Below Its Regulated Voltage. Con-
nect a pull-up resistor from this pin to a positive supply
less than 6V.
GND (Pin 7): Signal Ground. Provide a short, direct PCB
path between GND and the PC board ground plane con-
nected to the Exposed Pad.
RUNBK (Pin 8): Logic-Controlled Shutdown Input for the
Buck Converter. There is an internal 4M?pull-down on
this pin.
RUNBK = High: Normal operation
RUNBK = Low: Shutdown
FBBK (Pin 9): Feedback Input to the g
m
Error Amplifier
for the Buck Converter. Connect the resistor divider tap
to this pin. The output voltage can be adjusted from 0.6V
to 5.5V by:
V
OUT_BUCK
=0.600V" 1+
R6
R5
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
RUNLDO (Pin 10): Logic-Controlled Shutdown Input for
the LDO Regulator. There is an internal 4M?pull-down
on this pin.
RUNLDO = High: Normal operation
RUNLDO = Low: Shutdown
V
IN
(V)
0.550
0.575
0.600
4 4.5
0.525
1.5
2.5
1
2
3 3.5
5
0.500
0.625
3100 G27
FALLING
RISING
V
IN
(V)
0.5 300
350
400
4
250
200
1.5 2.5
1
2
3
4.5
3.5
5
50
0
150
450
100
3100 G28
LDO
BOOST
BUCK
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
LTC3104IMSE#TRPBF
IC REG DL BCK/LINEAR SYNC 16MSOP
LTC3445EUF#TRPBF
IC REG TRPL BUCK/LINEAR 24-QFN
LTC3446IDE#PBF
IC REG TRPL BCK/LINEAR 14-DFN
LTC3537EUD#TRPBF
IC REG DL BST/LINEAR SYNC 16-QFN
LTC3541EDD#TRPBF
IC REG DL BCK/LINEAR SYNC 10-DFN
LTC3670EDDB#TRPBF
IC REG TRPL BCK/LINEAR 12DFN
LTC3672BEDC-1#TRPBF
IC REG TRPL BCK/LINEAR 8-DFN
LTC3700EMS#TRPBF
IC REG DL BUCK/LINEAR 10MSOP
相关代理商/技术参数
LTC3100EUD-PBF
制造商:LINER 制造商全称:Linear Technology 功能描述:1.5MHz Synchronous Dual Channel DC/DC Converter and 100mA LDO
LTC3100EUD-TRPBF
制造商:LINER 制造商全称:Linear Technology 功能描述:1.5MHz Synchronous Dual Channel DC/DC Converter and 100mA LDO
LTC3101
制造商:LINER 制造商全称:Linear Technology 功能描述:8-Output Regulator with Sequencing and I2C
LTC3101_10
制造商:LINER 制造商全称:Linear Technology 功能描述:Wide VIN, Multi-Output DC/DC Converter and PowerPath Controller
LTC3101EUF#PBF
功能描述:IC BUCK/BST TRPL ADJ 350MA 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:PowerPath™ 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF)
LTC3101EUF#TRPBF
功能描述:IC BUCK/BST TRPL ADJ 350MA 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:PowerPath™ 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP（4x4） 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR
LTC3101EUF-PBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Wide VIN, Multi-Output DC/DC Converter and PowerPath Controller
LTC3101EUF-TRPBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Wide VIN, Multi-Output DC/DC Converter and PowerPath Controller