EZ1900, EZ1900CS, EZ2086CM-3.3 Selling Leads, Datasheet
MFG:SC Package Cooled:SOP-8 D/C:NO
EZ1900, EZ1900CS, EZ2086CM-3.3 Datasheet download
Part Number: EZ1900
MFG: SC
Package Cooled: SOP-8
D/C: NO
EZ1900, EZ1900CS, EZ2086CM-3.3
- Table of contents:
Info of EZ1900
Info of EZ1900CS
Info of EZ2086CM-3.3
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About EZ1900
PDF/DataSheet Download
Datasheet: EZ1900
File Size: 98094 KB
Manufacturer: SEMTECH [Semtech Corporation]
Download : Click here to Download
About EZ1900CS
PDF/DataSheet Download
Datasheet: EZ1900CS
File Size: 98094 KB
Manufacturer: SEMTECH [Semtech Corporation]
Download : Click here to Download
About EZ230XCKF
PDF/DataSheet Download
Datasheet: EZ230XCKF
File Size: 402302 KB
Manufacturer: EPCOS
Download : Click here to Download
EZ1900 General Description
The EZ1900 is a high performance positive load current balancer designed for use in applications utilizing 2 regulators in parallel to achieve equal current sharing or identical current for each load. The regulator balance controller allows a flexible motherboard design to be made to cope with different processor configurations.
The controller reads a logic level upgrade signal (denoted VCC2DET on the Intel P55C; similar on AMD, Cyrix and PowerPC microprocessors) to control the output voltage of two linear low dropout voltage regulators to the CPU core and I/O planes. In single-voltage plane configurations (VCC2DET floating), both regulators are set to the same output voltage (usually 3.3 - 3.5V) and are configured in masterslave mode. For split plane processors (VCC2DET low), the outputs of the two regulators are switched - the core voltage will be set to a nominal 2.5V while the I/O voltage will remain at 3.3V. The actual output voltages can be adjusted by means of resistors.
The EZ1900 programmable current balancer is available in the popular SO-8 surface mount package.
The controller reads a logic level upgrade signal (denoted VCC2DET on the Intel P55C; similar on AMD, Cyrix and PowerPC microprocessors) to control the output voltage of two linear low dropout voltage regulators to the CPU core and I/O planes. In single-voltage plane configurations (VCC2DET floating), both regulators are set to the same output voltage (usually 3.3 - 3.5V) and are configured in masterslave mode. For split plane processors (VCC2DET low), the outputs of the two regulators are switched - the core voltage will be set to a nominal 2.5V while the I/O voltage will remain at 3.3V. The actual output voltages can be adjusted by means of resistors.
The EZ1900 programmable current balancer is available in the popular SO-8 surface mount package.
EZ1900 Maximum Ratings
| Parameter | Symbol | Maximum | |
| Input Voltage Supply | VIN | 7 | V |
| Differential Amplifier |
-IN, +IN SOUT |
7 0 to +V |
W |
| Slave Output Current (sink only) |
ISLAVE | 50 |
°C/W |
| Thermal Resistance Junction to Ambient |
JA | 160 | °C/W |
| Operating Junction Temperature Range |
TJ | 0 to 70 |
°C |
| Storage Temperature Range | TSTG | -65 to 150 | °C |
| Lead Temperature (Soldering) 10 Sec | TLEAD | 260 | °C |
EZ1900 Features
· Current balance controller for regulators in parallel
· Slave and non-slave voltage modes
· Slave or non-slave mode computer selected
· Compatible with 3 or 5 pin low drop regulators
· Remote sense operation
· SO-8 package
· Slave and non-slave voltage modes
· Slave or non-slave mode computer selected
· Compatible with 3 or 5 pin low drop regulators
· Remote sense operation
· SO-8 package
EZ1900 Typical Application
· Flexible upgrade from single voltage plane to split-plane processors
· Intel Pentium® Processor P54CS & P55C upgrades
· PowerPC™ 603 & 604 upgrades
· AMD5K86™ upgrades
· Intel Pentium® Processor P54CS & P55C upgrades
· PowerPC™ 603 & 604 upgrades
· AMD5K86™ upgrades
EZ1900 Connection Diagram
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