MAX797MJE

DC-DC converter, CDIP, 696mW, 50mA, -0.3V to +36V, Maxim

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Price:: US $5.00~8.00 / piece [Get Latest Price]

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PartNumber:: MAX797MJE

Brand:: Maxim Integrated Products - Maxim | Pack: CDIP | D/C: 02+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
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Products Upload time: 2012-01-15

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Product Summary

The MAX797MJE is a high-performance, step-down DC-DC converter with single or dual outputs provide main CPU power in battery-powered systems. The MAX797MJE achieves 96% efficiency by using synchronous rectification and proprietary Idle Mode control scheme to extend battery life at full-load (up to 10A) and no-load outputs. Excellent dynamic response corrects output transients caused by the latest dynamic-clock CPUs within five 300kHz clock cycles. Unique bootstrap circuitry drives of the MAX797MJE inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. The applications of the device include Notebook and Subnotebook Computers, PDAs and Mobile Communicators and Cellular Phones.

Parametrics

MAX797MJE absolute maximum ratings: (1)V+ to GND: -0.3V, +36V; (2)GND to PGND: ±2V; (3)VL to GND: -0.3V, +7V; (4)BST to GND: -0.3V, +36V; (5)DH to LX: -0.3V, BST + 0.3V; (6)LX to BST: -7V, +0.3V; (7)SHDN to GND: -0.3V, +36V; (8)SYNC, SS, REF, FB, SECFB, SKIP, DL to GND: -0.3V, VL + 0.3V; (9)CSH, CSL to GND: -0.3V, +7V; (10)VL Short Circuit to GND: Momentary; (11)REF Short Circuit to GND: Continuous; (12)VL Output Current: 50mA; (13)Continuous Power Dissipation: 696mW; (14)Operating Temperature Ranges: -55 to +125℃; (15)Storage Temperature Range: -65 to +160℃; (16)Lead Temperature (soldering, 10sec): +300℃.

Features

MAX797MJE features: (1)96% Efficiency; (2)4.5V to 30V Input Range; (3)2.5V to 6V Adjustable Output; (4)Preset 3.3V and 5V Outputs (at up to 10A); (5)Multiple Regulated Outputs; (6)+5V Linear-Regulator Output; (7)Precision 2.505V Reference Output; (8)Automatic Bootstrap Circuit; (9)150kHz/300kHz Fixed-Frequency PWM Operation; (10)Programmable Soft-Start; (11)375μA Typ Quiescent Current (VIN = 12V, VOUT = 5V); (12)1μA Typ Shutdown Current.