Buck-boost DCDC
Buck-Boost Regulators,得益于升降壓架構(gòu),可以靈活支持寬輸入 / 寬輸出電壓范圍:不管輸出電壓比輸入電壓高或者低或者相等,都可以實現(xiàn)所需電壓的輸出。其中同步開關(guān)控 制芯片(controller),可以直接驅(qū)動外置 MOS,為用戶系統(tǒng)提供寬電壓、大電流、高功率的高效 DCDC 轉(zhuǎn)換,靈活支持各類高壓和大功率應用;同步開關(guān)轉(zhuǎn)換芯片,通過集成 超低 Rdson 的功率 MOS,為系統(tǒng)提供高集成度、高密度、外圍器件精簡的高效電源轉(zhuǎn)換方案。
Part Number |
VIN range |
Abs. VIN (max) |
VOUT range |
IOUT (max) |
MOS |
Topology |
fsw |
I2C Ctrl |
Prog. Vout |
Input ILIM |
Constant Current Mode |
IOUT monitor |
PFM |
FPWM |
Other feature |
Package |
SC8701
|
2.7-36V |
40V |
2.7-36V |
5A~10A |
ext. |
Buck-boost |
200kHz~600kHz |
|
PWM |
√ |
√ |
ILIM pin |
|
√ |
|
QFN 4x4 |
SC8703
|
2.7-28V |
30V |
27-28V |
5A~10A |
ext. |
Buck-boost |
200kHz~600kHz |
|
PWM |
√ |
√ |
ILIM pin |
√ |
|
|
QFN 4x4 |
SC8903
|
2.7-22V |
24 |
27-22V |
5A |
int. |
Buck-boost |
230kHz/460kHz |
|
PWM |
√ |
√ |
ILIM pin |
√ |
√ |
|
QFN 6×6 |
SC8706
|
3.524V |
29V |
3-24V |
6.4A |
ext. |
Buck-boost |
400kHz/600kHz/ 800kHz/1200kHz |
√ |
12C |
√ |
√ |
IOUT pin |
√ |
|
OOA; Integrated 10-bit high accuracy ADC; Output voltage dynamic control |
QFN 4x4 |
SC8903A
|
2.7-22V |
24V |
2.7-22V |
5A |
int. |
Buck-boost |
230kHz/460kHz |
|
PWM |
√ |
√ |
ILIM pin |
√ |
√ |
No Short protection |
QFN 6x6 |
SC8721
|
2.7-22V |
25V |
2.4-22V |
5A |
int |
Buck-boost |
260kHz~920kHz |
√ |
12C |
|
√ |
CSO pin |
√ |
|
2.4V short circuit Vth |
QFN 4x4 |
SC8721A
|
2.7-22V |
25V |
0.7-22V |
5A |
int |
Buck-boost |
260kHz~920kHz |
√ |
12C |
|
√ |
CSO pin |
√ |
|
0.7V short circuit Vth |
QFN 4x4 |
SC8721B
|
2.7-22V |
25V |
0.7-22V |
5A |
int |
Buck-boost |
260kHZ~920kHz |
√ |
12C |
|
√ |
CSO pin |
√ |
|
No short circuit protection, for e- cigar application |
QFN 4x4 |
SC8723
|
2.7-22V |
25 |
3-22V |
3.5A |
int |
Buck-boost |
250kHz~1MHz |
|
FB |
|
√ |
|
√ |
√ |
No external current sense resistors; |
QFN 3x3 |
SC8724
|
2.7-22V |
25 |
3-22V |
3.5A |
int |
Buck-boost |
250kHz~1MHz |
|
FB |
|
√ |
|
√ |
√ |
No external current sense res istors; Enhanced package for better thermal dissipation |
QFN 4x4 |
SC8751
|
27~5.5V |
6.5V |
35.2V |
2A |
int |
Buck-boost |
1.5MHz |
√ |
12C |
|
|
|
√ |
√ |
18μA Low Iq; Programmable Output Voltage Transition Time; Output Fast Discharge |
CSP2.13 5x2.135-15 |
SC8815
|
2.7-36V |
40V |
27-28/ |
5A~10A |
ext. |
Buck-boost |
1.50kHz ~450kHz |
√ |
12C |
√ |
√ |
10-bit ADC |
√ |
√ |
|
QFN 4x4 |
SC8915
|
2.7-36V |
40V |
2.7-28V |
5A |
int. (2) |
Buck-boost |
1.50kHz ~450kHz |
√ |
12C |
√ |
√ |
10-bit ADC |
√ |
√ |
|
QFN 5x5 |
SC8701Q
|
2.7-36V |
40V |
2.7-36V |
5A~10A |
ext. |
Buck-boost |
200kHz~600kHz |
|
PWM |
√ |
√ |
ILIM pin |
|
√ |
AEC-Q100 |
QFN 4x4 |