MAX8770GTL+

power-supply controller, QFN40, -0.3V to +6V, MAX8770GTL+, +10mA

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PartNumber:: MAX8770GTL+

Brand:: Maxim Integrated Products - Maxim | Pack: QFN | D/C: 10+

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Products Upload time: 2012-05-15

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Product Summary

The MAX8770GTL+ is a dual, step-down, interleaved, fixedfrequency, switch-mode power-supply (SMPS) controller with synchronous rectification. It is intended for GPU cores and I/O power generation in battery-powered systems. Flexible configuration allows the device to operate as two independent single-phase regulators, or as one high-current two-phase regulator. The applications of the MAX8770GTL+ include: (1)2 to 4 Li+ Cells Battery-Powered Devices; (2)Media Center and Gaming Notebooks; (3)GPU and I/O Power Supplies; (4)Tracking Output Power Supplies.

Parametrics

MAX8770GTL+ absolute maxing ratings: (1)VDD, VCC, CSH_, CSL_ to AGND: -0.3V to +6V; (2)ON_, SKIP_, PGOOD_ to AGND: -0.3V to +6V; (3)OVP_, REFIN_ to AGND: -0.3V to +6V; (4)DTRANS to AGND: -0.3V to +6V; (5)REF, OSC, SLEW_, CCI2 to AGND: -0.3V to (VCC + 0.3V); (6)BST1, BST2 to AGND: -0.3V to +36V; (7)LX1 to BST1: -6V to +0.3V; (8)LX2 to BST2: -6V to +0.3V; (9)DH1 to LX1: -0.3V to (VBST1 + 0.3V); (10)DH2 to LX2: -0.3V to (VBST2 + 0.3V); (11)DL1, DL2 to PGND: -0.3V to (VDD + 0.3V); (12)AGND to PGND: -0.3V to +0.3V; (13)REF Short Circuit to AGND: Continuous; (14)REF Current: +10mA.

Features

MAX8770GTL+ features: (1)Dual-Output, Fixed-Frequency, Current-Mode Control; (2)Combinable Output for Higher Currents; (3)Dynamic Output Voltages with Automatic Fault Blanking and Transition Control; (4)True Out-of-Phase Operation; (5)True Differential Current Sense for Accurate Current Limit and Current Balance; (6)4V to 26V Input Range; (7)100kHz to 600kHz Switching Frequency; (8)0.5V to 2.5V Adjustable Outputs; (9)Internal Integrator for High Output Accuracy; (10)Stable with Low-ESR Output Capacitors; (11)Independent Selectable PWM and Skip-Mode Operation; (12)Independent Power-Good Outputs; (13)Soft-Start and Soft-Stop; (14)2.5V Precision Reference; (15)< 1μA Typical Shutdown Current.