中文
EnglishThe APW7237 is a fixed switching frequency (1.5MHz typical), current-mode, step-up regulator with an inte- grated N-channel MOSFET. The device allows the usage of small inductors and output capacit
Features
Wide 2.7V to 6V Input Voltage Range
Built-in 0.2Ω N-Channel MOSFET
Built-in Soft-Start
High Efficiency up to 90%
<1µA Quiescent Current During Shutdown
Current-Mode Operation
- Stable with Ceramic Output Capacitors
- Fast Transient Response
Current-Limit Protection
Over-Temperature Protection with Hysteresis
Available in a TSOT-23-5A and TDFN2x2-6 Pack-
age
Lead Free and Green Devices Available
General Description
The APW7237 is a fixed switching frequency (1.5MHz
typical), current-mode, step-up regulator with an inte-
grated N-channel MOSFET. The device allows the usage
of small inductors and output capacitors for portable
devices. The current-mode control scheme provides fast
transient response and good output voltage accuracy.
The APW7237 includes under-voltage lockout, current-
limit, and over-temperature shutdown preventing dam-
age in the event of an output overload.
Part_No | Package & Pins | Topology | Architecture | Input Voltage (V) | Max Adj. Output Voltage(V) | Switch Current Limit (max)(A) | Fixed Output Voltage (V) | Switching Frequency (kHz) | Internal Power Switch | Sync. Rectifier | ||
min | max | min | max | |||||||||
APW7079 | SOT-89 | Boost | VM Hysteresis | 0.9 | 5.5 | 2.5 | 5.5 | 0.5 | 1.8 | - | No | Yes |
APW7078 | MSOP-8 | Boost | VM | 2.5 | 5.5 | 2.5 | - | - | - | 200 ~ 1000 | No | No |
APW7075 | TSSOP-8 | Boost | VM | 1 | 5.5 | 2.5 | 5 | 1 | 2.5 | 300 | Yes | Yes |
APW34063 | SOP-8 | Boost | CM | 3 | 40 | 1.25 | 40 | 1.5 | - | 33 ~ 100 | Yes | No |
APW7130/1/2 | TQFN5x5-32 | Boost | CM | 2.5 | 6.5 | 2.5 | 18 | 3 | No | 1200 | Yes | No |
APW7237 | TSOT-23-5 | Boost | CM | 2.5 | 6 | 2.5 | 20 | 2 | - | 1500 | Yes | No |
APW7277 | TQFN4x4-16 | Boost | CM | 1.8 | 5.5 | 2.7 | 5.5 | 5 | - | 1.2 | Yes | Yes |
APW7137 | SOT-23-5 | Boost | CM | 2.5 | 6 | 2.5 | 32 | 1 | - | 1000 | Yes | No |
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