MAX1677 |
RFQ for MAX1677 Required Field |
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| Technical/Catalog Information | MAX1677EEE |
| Vendor | Maxim Integrated Products |
| Category | Integrated Circuits (ICs) |
| Type | Step-Up (Boost) |
| Number of Outputs | 2 |
| Voltage - Input | 0.7 ~ 5.5 V |
| Voltage - Output | 3.3V or Adj Main, -28 ~ 28 V or Adj Secondary |
| Current - Output | 350mA |
| Power - Output | 696mW |
| Package / Case | 16-QSOP (SSOP) |
| Packaging | Tube |
| Internal Switch(s) | Yes |
| Synchronous | Yes |
| Rds (On) | - |
| Operating Temperature | -40°C ~ 85°C |
| Frequency - Switching | 300kHz |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MAX1677EEE MAX1677EEE |
| Product | Manufacturers | Pack | D/C |
| MAX1677 | Maxim | SOP-16 | N/A |
The MAX1677 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate switching-regulator circuits. The first circuit is configured for a +3.3V main output and +20V LCD bias voltage. It accepts inputs from +0.7V to +3.3V. The main +3.3V output supplies up to 350mA from a 2-cell input, or 140mA from a 1-cell input, while the LCD bias output supplies up to 12mA at +20V.
The second circuit converts a +0.7V to +3.3V battery voltage to a +3.3V main output and a -20V LCD bias voltage. The main +3.3V output supplies up to 350mA from a 2-cell input, or 140mA from a 1-cell input, while the LCD bias output supplies 10mA at -20V.
The MAX1677 features internal N-channel MOSFET switches, a synchronous rectifier, low-battery comparator,and selectable PFM/PWM mode. The MAX1677 EV kit provides low quiescent current and high efficiency-up to 95% for maximum battery life. Operation at 300kHz allows the use of tiny surface-mount inductors.
Features |
| ` +0.7V to MAINOUT Battery Input Voltage` Dual Output Voltages +3.3V Main Output and +20V LCD Bias Output +3.3V Main Output and -20V LCD Bias Output` All Outputs Also Adjustable with External Resistors` Up to 350mA from 2-Cell Input (Main Output )` Up to 140mA from 1-Cell Input (Main Output)` Up to 12mA Output Current (LCD Bias Output)` Internal N-Channel Switches and Synchronous Rectifier` 1A IC Shutdown Current` 300kHz Switching Frequency` Surface-Mount Components` Fully Assembled and Tested |
