TC3608H,高效率1.2MHz DC-DC升壓器IC
概述
TC3608H 是一款固定 1.2MHZ 開關頻率的電流模式升壓型 DC-DC 轉換器。內置80mΩ功率場效應管使這個調節器具有高達 96%的效率。內部補償網絡也減少了多達 6 個的外部元件。誤差信號放大器的同相輸入端連接到0.6V精密基準電壓，內部軟啟動功能可以減小瞬間突增電流。 TC3608H 輕載時可自動進入脈沖頻率調制模式，減小功耗；TC3608H 有欠壓鎖定，過電流保護，過載保護，以及過熱保護等功能。 TC3608H 可以封裝為 SOT23-6，在應用中節省了 PCB 空間。
TC3608H is a current mode boost DC-DC converter with a fixed 1.2MHZ switching frequency. Built in 80m Ω power Field-effect transistor enables this regulator to have an efficiency of up to 96%. The internal compensation network has also reduced up to 6 external components. The in-phase input of the error signal amplifier is connected to a precision reference voltage of 0.6V, and the internal soft start function can reduce the instantaneous surge current.
TC3608H can automatically enter pulse frequency modulation mode when under light load, reducing power consumption; The TC3608H has Undervoltage-lockout, overcurrent protection, overload protection, and overheating protection functions.
TC3608H can be packaged as SOT23-6, saving PCB space in applications
特點
可調輸出高達 24V
內部固定的脈寬調制頻率：1.2MHZ
精準反饋參考電壓：0.6V（±2%）
內部集成 80mΩ功率 MOSFET
寬輸入電壓：2.3V to 15V
效率高達96%
封裝：SOT23-6
應用
機頂盒
LED 顯示屏
數碼相機
手持設備
便攜式產品
典型應用
DC electrical characteristics
Parameter symbol test condition minimum value typical value maximum value unit system input
Input voltage range VIN 2.3 15V Undervoltage-lockout Vuvlo 1.98V low-voltage switching hysteresis 0.1V static current lcc1 VFB=0.7V, no switch 0.1 0.2mA supply current lcc2 VFB=0.5V, with switch 1.6 2.2mA switching current lcc3 Ven=GND 0.1 uA oscillator
Operating frequency Fosc 1.2 MHz maximum duty cycle Tduty 90% reference voltage
Reference voltage Vref 0.588 0.6 0.612V enable control
Enable voltage Ven 1.5 V Turn off voltage Ven 0.4VMOS Field-effect transistor
Driver opening resistance Rds (on) 80 m Ω Switch tube maximum current 4 ASW Leakage current Isw Vsw=20V 1 uA Protection
Working temperature Totp+150 ℃
熱銷產品：富滿：TC3608LTH7RTC4056ADW06DW02DW039017RFM116DW018205FM4115TC233TC8301TC118AH2302P風扇icFM5012DFM5011HB
南麟：XT4052XT4054XT2055XT2052LN4056XT4076LN3608NP3401NP3400LN6291H
微盟：ME6206ME6211ME6216ME6203ME6210ME6219ME6119ME4057ME6208ME6209ME6118ME2188ME6212ME4054ME2109
自主品牌：AMS1117系列SOT-223SOT-89ULN200378M0578L05
遠翔：FP6291FP6293FP6296FP6277FP5139FP6298
英集芯IP5306IP5407IP5305TIP2312
TH7RTC4056ADW06DW02DW039017RFM116DW018205FM4115TC233TC8301TC118AH2302P風扇icFM5012D
微源：LP4054LP4056LP4057LP78070F
南麟：XT4052XT4054XT2055XT2052LN4056XT4076LN3608NP3401NP3400LN6291H
微盟：ME6206ME6211ME6216ME6203ME6210ME6219ME6119ME4057ME6208ME6209ME6118ME2188ME6212ME4054
自主品牌：AMS1117系列SOT-223SOT-89ULN200378M0578L05
遠翔：FP6291FP6293FP6296FP6277FP5139FP6298
英集芯：IP5306IP5305TIP5303TIP9315IP5407IP2312
