參數(shù)資料
型號: LTC3456
廠商: Linear Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: 2-Cell, Multi-Output DC/DC Converter with USB Power Manager
中文描述: 2節(jié)電池,多輸出DC / DC轉換器與USB電源管理器
文件頁數(shù): 26/28頁
文件大?。?/td> 358K
代理商: LTC3456
26
LTC3456
3456f
+
PWRKEY
PBSTAT RESET MODE
WALLFB
V
MAX
V
EXT
V
EXT
C4
10
μ
F
C2
4.7
μ
F
1
C3
4.7
μ
F
1
C1
4.7
μ
F
1k
D1
11.3k
4.32k
AC
ADAPTER
(5V
±
10%)
USB POWER
(4.35V TO 5.5V)
USB
CONTROLLER
L2
4.7
μ
H
2 AA
CELLS
L3
10
μ
H
EXT_PWR
USB
SUSPEND
USBHP
V
BATT
V
MAIN
A0
AIN
V
INT
SW2_BST
LTC3456
SW2_BK
MICROCONTROLLER
PWRON PGND AGND
C10
22
μ
F
MAIN OUTPUT
3.3V
100mA
LCD LOGIC BIAS
2.8V
10mA
C9
1
μ
F
100k
HSO
FLASH MEMORY CARD
3.3V
50mA
C7
1
μ
F
C8
2.2
μ
F
Q1
49.9k
20k
C5
1
μ
F
C1, C6 TO C10: X5R OR X7R, 4V
C2 TO C5: X5R OR X7R, 6.3V
D1: ON SEMICONDUCTOR MBRM120E
3456 TA02a
SW1
FB1
L1
10
μ
H
CORE OUTPUT
1.8V
200mA
V
(TO REAL-TIME CLOCK)
C6
10
μ
F
220pF
100k
80.6k
L1, L3: MURATA LQH32CN100K53
L2: MURATA LQH32CN4R7M53
Q1: PHILIPS MMBT3906
2 AA Cells Power Complete Power Supply for Handheld Devices
Load Transient (Battery Powered)
Load Transient (USB/Wall Powered)
V
100mV/DIV
(AC COUPLED)
V
200mV/DIV
(AC COUPLED)
I
L2
200mA/DIV
I
L1
200mA/DIV
100
μ
s/DIV
V
BATT
= 2.4V
I
MAIN
= 20mA TO 100mA
I
CORE
= 20mA TO 150mA
3456 TA02b
V
100mV/DIV
(AC COUPLED)
V
200mV/DIV
(AC COUPLED)
I
L3
200mA/DIV
I
L1
200mA/DIV
200
μ
s/DIV
V
EXT
= 5V
I
MAIN
= 20mA TO 100mA
I
CORE
= 5mA TO 150mA
3456 TA02c
TYPICAL APPLICATIO
U
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相關代理商/技術參數(shù)
參數(shù)描述
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LTC3456EUF#PBF 功能描述:IC CONV DC/DC USB BATT 24-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標準包裝:1 系列:- 應用:手持/移動設備 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 供應商設備封裝:14-LLP-EP(4x4) 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR
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LTC3458EDE 功能描述:IC REG BOOST SYNC ADJ 1.4A 12DFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓(降壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V,1.5V,1.8V,2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤