
LTC3788EUH#TRPBF
Active2-PHASE, DUAL OUTPUT SYNCHRONOUS BOOST CONTROLLER

LTC3788EUH#TRPBF
Active2-PHASE, DUAL OUTPUT SYNCHRONOUS BOOST CONTROLLER
Description
General part information
LTC3788 Series
The LTC3788 is a high performance 2-phase dual synchronous boost converter controller that drives all N-channel power MOSFETs. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3788 to be used in high power boost applications.A constant-frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. OPTI-LOOP®compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3788 features a precision 1.2V reference and dual power good output indicators. A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries.Independent SS pins for each controller ramp the output voltages during start-up. The PLLIN/MODE pin selects among Burst Mode®operation, pulse-skipping mode or continuous inductor current mode at light loads.For a leaded 28-lead SSOP package with a fixed current limit and one PGOOD output, without phase modulation or a clock output, see the LTC3788-1 data sheet.CLKOUT/PHASMDAdjustable Current SensePower GoodPackageLTC3788YesYes25 × 5 QFN-32LTC3788-1NoNo1SSOP-28ApplicationsIndustrialAutomotiveMedicalMilitary
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3788EUH#TRPBF |
|---|---|
| Clock Sync | No |
| Control Features | Soft Start, Current Limit, Frequency Control, Enable, Power Good |
| Duty Cycle (Max) | 96 % |
| Frequency - Switching (Max) | 760 kHz |
| Frequency - Switching (Min) | 105 kHz |
| Function | Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 32-WFQFN Exposed Pad |
| Package Length | 5 mm |
| Package Name | 32-QFN |
| Package Width | 5 mm |
| Synchronous Rectifier | Yes |
| Topology | Boost |
| Voltage - Supply (Vcc/Vdd) Maximum | 38 V |
| Voltage - Supply (Vcc/Vdd) Minimum | 4.5 V |
Pricing
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