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參數(shù)資料
| 型號： | LTC3427EDC#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, LEAD FREE, PLSTIC, DFN-6 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 202K |
| 代理商： | LTC3427EDC#PBF |
5
LTC3427
3427fa
BLOCK DIAGRA
W
Σ
+
–
+
IZERO
COMP
VOUT
1.8V TO 5.25V
GAIN ERROR
AMPLIFIER
CURRENT
SENSE
1.24V
1V
BULK CONTROL
SIGNALS
L1
4.7
H
OPTIONAL
VIN
ANTIRING
SHDN
PWM
LOGIC
AND
DRIVERS
START-UP
SOFT-START
SHUTDOWN
AND
VBIAS
THERMAL
SHUTDOWN
SLOPE COMPENSATION
OSCILLATOR
REFERENCE
–
+
PWM
COMP
ILIM
REF
+
–
+
1.24V
4
VIN
3
SW
VOUT
1
6
FB
R1
COUT
4.7
F
R2
5
GND
3427 BD
2
EXPOSED PAD
7
CIN
2.2
F
VIN
1.8V TO 5V
SW (Pin 1): Switch Pin for the Inductor Connection.
Minimize trace length between SW and the inductor. For
discontinuous inductor current, an internal 200
imped-
ance is connected from SW to VIN to eliminate high
frequency ringing, reducing EMI radiation.
GND (Pin 2): Signal and Power Ground. Provide a short,
direct PCB path between GND and the (–) side of the input
and output capacitor(s).
VIN (Pin 3): Input Supply Voltage. Connect VIN to the input
supply and decouple with a 2.2
F or larger ceramic
capacitor as close to VIN as possible.
SHDN (Pin 4): Shutdown Input. Less than 350mV on
SHDN shuts down the LTC3427. Placing 1V or more on
SHDN enables the LTC3427.
FB (Pin 5): Feedback Input to the Error Amplifier. Connect
resistor divider tap to this pin. Referring to the Block
Diagram, VOUT can be adjusted from 1.8V to 5.25V by:
VV
R
OUT =+
124
1
2
.
VOUT (Pin 6): Output Voltage Sense Input and Drain of the
Internal Synchronous Rectifier MOSFET. Driver bias is
derived from VOUT. PCB trace length from VOUT to the
output filter capacitor(s) should be as short and wide as
possible.
Exposed Pad (Pin 7): Ground for the LTC3427. This pin
must be soldered to the PCB ground plane for electrical
connection and rated thermal performance.
UU
U
PI FU CTIO S
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| LTC3428 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN |
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| LTC3428EDD#PBF | 功能描述:IC REG BOOST ADJ 4A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 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 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC3428EDD#TRPBF | 功能描述:IC REG BOOST ADJ 4A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):- 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(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
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