同步整流 升壓DC/DC轉換器 - BU33UV7NUX
BU33UV7NUX是消耗電流較低的同步整流升壓DCDC轉換器，作為升壓電源，適用於使用2 CELL鹼性、鎳鎘、鎳氫電池或1 CELL鋰離子、鋰聚合物電池的產品。即使2 CELL乾電池的電壓降至1.8V，仍可提供最大500mA輸出負載。而且，BU33UV7NUX還搭載了復位IC功能（檢出：1.5V, 解除：1.9V）。BU33UV7NUX的輸出電壓固定為3.3V，如果Vin電壓超過3.3V的輸出電壓，則Vin與Vout會在內部連接。
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規格:
Grade
Standard
ch
1
Integrated FET / Controller
Integrated FET
Topology
Boost
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
0.6
Vin1(Max.)[V]
4.5
Vout1(Min.)[V]
3.3
Vout1(Max.)[V]
3.3
Iout1(Max.)[A]
0.5
SW frequency(Max.)[MHz]
0.8
Light Load mode
No
EN
Yes
PGOOD
No
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
功能:
- Synchronous Boost DC/DC Converter
Iomax500mA @Vout=3.3V, Vin=1.8V (Ta=25°C) - Disconnect Function during EN-OFF and UVLO
- Auto-PFM/PWM (MODE=H(=VIN)),
FIXED PFM (MODE=L(=0V)) - Reset Function (Detect Voltage = 1.5V)
- Pass-Through Function (VIN > VOUT)
- Thermal Shutdown
- 10-pin “VSON010X3020” package