參數(shù)資料
型號(hào)： LTC3109EGN#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 0.026 A SWITCHING REGULATOR, PDSO20
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SSOP-20
文件頁(yè)數(shù)： 21/24頁(yè)
文件大?。?/td> 329K
代理商： LTC3109EGN#PBF
LTC3109
3109f
LDO Step Load Response
Enable Input and VOUT2
Running on Storage Capacitor
pin FuncTions (QFN/SSOP)
VSTORE (Pin 1/Pin 3): Output for the Storage Capacitor or
Battery. A large storage capacitor may be connected from
this pin to GND for powering the system in the event the
input voltage is lost. It will be charged up to the maximum
VAUX clamp voltage. If not used, this pin should be left
open or tied to VAUX.
VAUX (Pin 2/Pin 4): Output of the Internal Rectifier Cir-
cuit and VCC for the IC. Bypass VAUX with at least 1F of
capacitance to ground. An active shunt regulator clamps
VAUX to 5.25V (typical).
VOUT (Pin 3/Pin 5): Main Output of the Converter. The
voltage at this pin is regulated to the voltage selected by
VS1 and VS2 (see Table 1). Connect this pin to a reservoir
capacitor or to a rechargeable battery. Any high current
pulse loads must be fed by the reservoir capacitor on
this pin.
VOUT2 (Pin 4/ Pin 6): Switched Output of the Converter.
Connect this pin to a switched load. This output is open
until VOUT_EN is driven high, then it is connected to VOUT
through a 1Ω PMOS switch. If not used, this pin should
be left open or tied to VOUT.
VOUT2_EN (Pin 5/Pin 7): Enable Input for VOUT2. VOUT2
will be enabled when this pin is driven high. There is an
internal 5M pull-down resistor on this pin. If not used,
this pin can be left open or grounded.
PGOOD (Pin 6/Pin 8): Power Good Output. When VOUT
is within 7.5% of its programmed value, this pin will be
pulled up to the LDO voltage through a 1M resistor. If
VOUT drops 9% below its programmed value PGOOD will
go low. This pin can sink up to 100A.
VLDO (Pin 7/Pin 9): Output of the 2.2V LDO. Connect a
2.2F or larger ceramic capacitor from this pin to GND.
If not used, this pin should be tied to VAUX.
GND (Pins 8, 11, 16, Exposed Pad Pin 21/Pins 10, 13,
18):GroundPins.Connectthesepinsdirectlytotheground
plane.Theexposedpadservesasagroundconnectionand
as a means of conducting heat away from the die.
VS2 (Pin 20/Pin 2): VOUT Select Pin 2. Connect this
pin to ground or VAUX to program the output voltage
(see Table 1).
VS1 (Pin 19/Pin 1): VOUT Select Pin 1. Connect this
pin to ground or VAUX to program the output voltage
(see Table 1).
Table 1. Regulated Output Voltage Using Pins VS1 and VS2
VS2
VS1
VOUT
GND
2.35V
GND
VAUX
3.3V
VAUX
GND
4.1V
VAUX
5.0V
Typical perForMance characTerisTics T
A = 25°C, unless otherwise noted.
VLDO
20mV/DIV
ILDO
5mA/DIV
200s/DIV
3109 G15
0mA TO 3mA LOAD STEP
CLDO = 2.2F
1ms/DIV
3109 G16
CH2
VOUT2
1V/DIV
CH1
VOUT2_EN
1V/DIV
10mA LOAD ON VOUT2
COUT = 220F
5SEC/DIV
3109 G17
CH2, VOUT
1V/DIV
CH1, VIN
50mV/DIV
CH3
VSTORE
1V/DIV
CH4, VLDO
1V/DIV
CSTORE = 470F
VOUT LOAD = 100A
相關(guān)PDF資料
PDF描述
LTC3109EUF#PBF 0.026 A SWITCHING REGULATOR, PQCC20
LTC3109IGN#TRPBF 0.026 A SWITCHING REGULATOR, PDSO20
LTC3873ITS8-5#TR SWITCHING CONTROLLER, PDSO8
LTC3873IDDB-5#PBF SWITCHING CONTROLLER, PDSO8
LTC3873ITS8-5 SWITCHING CONTROLLER, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3109EGN-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager
LTC3109EUF#PBF 功能描述:IC BOOST CONVERTER PMU 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動(dòng)設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR
LTC3109EUF#TRPBF 功能描述:IC BOOST CONVERTER PMU 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動(dòng)設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR
LTC3109EUF-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager
LTC3109EUF-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*