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参数资料
| 型号： | LTC3586EUFE#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC38 |
| 封装： | 4 X 6 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-38 |
| 文件页数： | 3/36页 |
| 文件大小： | 317K |
| 代理商： | LTC3586EUFE#PBF |
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LTC3586/LTC3586-1
11
3586fa
PIN FUNCTIONS
ILIM0, ILIM1 (Pins 1, 2): Logic Inputs. ILIM0 and ILIM1
control the current limit of the PowerPath switching
regulator. See Table 1.
SW4 (Pin 8): Switch Node for the (Boost) Switching
Regulator 4. An external inductor connects between this
pin and VIN4.
MODE (Pin 9): Digital Input. The MODE pin controls dif-
ferent modes of operation for the switching regulators
according to Table 2.
Table 1. USB Current Limit Settings
(ILIM1)(ILIM0)
USB SETTING
0
1x Mode (USB 100mA Limit)
0
1
10x Mode (Wall 1A Limit)
1
0
Suspend
1
5x Mode (USB 500mA Limit)
LDO3V3 (Pin 3): 3.3V LDO Output Pin. This pin provides
a regulated always-on 3.3V supply voltage. LDO3V3
gets its power from VOUT. It may be used for light loads
such as a watch dog microprocessor or real time clock.
A 1μF capacitor is required from LDO3V3 to ground. If
the LDO3V3 output is not used it should be disabled by
connecting it to VOUT.
CLPROG (Pin 4): USB Current Limit Program and Moni-
tor Pin. A resistor from CLPROG to ground determines
the upper limit of the current drawn from the VBUS pin.
A fraction of the VBUS current is sent to the CLPROG pin
when the synchronous switch of the PowerPath switching
regulator is on. The switching regulator delivers power until
the CLPROG pin reaches 1.188V. Several VBUS current limit
settings are available via user input which will typically
correspond to the 500mA and 100mA USB specications.
A multilayer ceramic averaging capacitor is required at
CLPROG for ltering.
NTC (Pin 5): Input to the Thermistor Monitoring Circuits.
The NTC pin connects to a battery’s thermistor to deter-
mine if the battery is too hot or too cold to charge. If the
battery’s temperature is out of range, charging is paused
until it re-enters the valid range. A low drift bias resistor
is required from VBUS to NTC and a thermistor is required
from NTC to ground. If the NTC function is not desired,
the NTC pin should be grounded.
VOUT4 (Pins 6, 7): Power Output for the (Boost) Switching
Regulator 4. A 10μF MLCC capacitor should be placed as
close to the pins as possible.
Table 2. Switching Regulators Mode
REGULATION MODE
Mode
Buck
Buck-Boost
Boost
0
Pulse-Skip
PWM
Pulse-Skip
1
Burst
Pulse-Skip
FB4 (Pin 10): Feedback Input for the (Boost) Switching
Regulator 4. When the control loop is complete, the volt-
age on this pin servos to 0.8V.
FB3 (Pin 11): Feedback Input for (Buck-Boost) Switching
Regulator 3. When regulator 3’s control loop is complete,
this pin servos to 0.8V.
VC3(Pin12):OutputoftheErrorAmplierandVoltageCom-
pensation Node for (Buck-Boost) Switching Regulator 3.
External Type I or Type III compensation (to FB3) connects
to this pin. See the Applications Information section for
selecting buck-boost compensation components.
SWAB3 (Pin 13): Switch Node for (Buck-Boost) Switch-
ing Regulator 3. Connected to Internal Power Switches A
and B. An external inductor connects between this node
and SWCD3.
VIN3(Pins14,15):PowerInputfor(Buck-Boost)Switching
Regulator 3. These pins will generally be connected to VOUT.
A 1μF MLCC capacitor is recommended on these pins.
VOUT3 (Pins 16, 17): Output Voltage for (Buck-Boost)
Switching Regulator 3.
EN3 (Pin 18): Digital Input. This input enables the
buck-boost switching regulator 3.
SWCD3 (Pin 19): Switch Node for (Buck-Boost) Switch-
ing Regulator 3 Connected to Internal Power Switches C
and D. An external inductor connects between this node
and SWAB3.
相关PDF资料 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3586EUFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency USB Power Manager with Boost, Buck-Boost and Dual Bucks |
| LTC3588-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Ultralow Voltage Step-Up Converter |
| LTC3588-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3588-2_10 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Piezoelectric Energy Harvesting Power Supply with 14V Minimum VIN |
| LTC3588EDD-1#PBF | 功能描述:IC ENERGY HARVESTING PSU 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 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) |
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