GENERAL DESCRIPTION
W9812G6IH is a high-speed synchronous dynamic random access memory (SDRAM), organized as 2M words × 4 banks × 16 bits. W9812G6IH delivers a data bandwidth of up to 200M words per second (-5). For different application, W9812G6IH is sorted into the following speed grades: -5/-6/-6C and -75. The –5 is compliant to the 200MHz/CL3 specification. The –6/-6C/-6I is compliant to the 166MHz/CL3 specification (the -6I grade which is guaranteed to support -40°C ~ 85°C). The -75 is compliant to the 133MHz/CL3 specification.
Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be accessed at a burst length of 1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE command. Column addresses are automatically generated by the SDRAM internal counter in burst operation. Random column read is also possible by providing its address at each clock cycle. The multiple bank nature enables interleaving among internal banks to hide the precharging time.
By having a programmable Mode Register, the system can change burst length, latency cycle, interleave or sequential burst to maximize its performance. W9812G6IH is ideal for main memory in high performance applications.

FEATURES
*3.3V ± 0.3V Power Supply
*Up to 200 MHz Clock Frequency
*2,097,152 Words × 4 banks × 16 bits organization
*Self Refresh Mode
*CAS Latency: 2 and 3
*Burst Length: 1, 2, 4, 8 and full page
*Burst Read, Single Writes Mode
*Byte Data Controlled by LDQM, UDQM
*Auto-precharge and Controlled Precharge
*4K Refresh cycles / 64 mS
*Interface: LVTTL
*Packaged in TSOP II 54-pin, 400 mil using Lead free materials with RoHS compliant

W9812G6IH-5, W9812G6IH-6, W9812G6IH-6C, W9812G6IH-6I, W9812G6IH-75

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General Description
The MAX15020 high-voltage step-down DC-DC converter operates over an input voltage range of 7.5V to 40V. The device integrates a 0.2Ω high-side switch and is capable of delivering 2A load current with excellent load and line regulation. The output is dynamically adjustable from 0.5V to 36V through the use of an external reference input (REFIN). The MAX15020 consumes
only 6μA in shutdown mode.
The device utilizes feed-forward voltage-mode architecture for good noise immunity in the high-voltage switching environment and offers external compensation for maximum flexibility. The switching frequency is selectable to 300kHz or 500kHz and can be synchronized to an external clock signal of 100kHz to 500kHz by using the SYNC input. The IC features a maximum duty cycle of 95% (typ) at 300kHz.
The device includes configurable undervoltage lockout (UVLO) and soft-start. Protection features include cycle-by-cycle current limit, hiccup-mode for output short-circuit protection, and thermal shutdown. The MAX15020 is available in a 20-pin TQFN 5mm x 5mm package and is rated for operation over the -40°C to +125°C temperature range.

Applications
Printer Head Driver Power Supply
Automotive Power Supply
Industrial Power Supply
Step-Down Power Supply

Features
*Wide 7.5V to 40V Input Voltage Range
*2A Output Current, Up to 96% Efficiency
*Dynamic Programmable Output Voltage (0.5V to 36V)
*Maximum Duty Cycle of 95% (typ) at 300kHz
*100kHz to 500kHz Synchronizable SYNC Frequency Range
*Configurable UVLO and Soft-Start
*Low-Noise, Voltage-Mode Step-Down Converter
*Programmable Output-Voltage Slew Rate
*Lossless Constant Current Limit with Fixed Timeout to Hiccup Mode
*Extremely Low-Power Consumption (< 6μA typ) in Shutdown Mode
*20-Pin (5mm x 5mm) Thin QFN Package

MAX15020ATP+

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