Buck-boost DCDC
Buck Boost Regulators, thanks to the boost voltage architecture, can flexibly support a wide input/output voltage range: regardless of whether the output voltage is higher, lower, or equal to the input voltage, it can achieve the desired voltage output. The synchronous switch control chip (controller) can directly drive the external MOS, providing users with efficient DC-DC conversion with wide voltage, high current, and high power, and flexibly supporting various high-voltage and high-power applications; Synchronous switch conversion chip, integrated withThe ultra-low Rdson power MOS provides an efficient power conversion solution for the system with high integration, high density, and simplified peripheral devices.
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 |