L5994A-1, L5995, L5996 Selling Leads, Datasheet
MFG:STM Package Cooled:99+ D/C:N/A
L5994A-1, L5995, L5996 Datasheet download
Part Number: L5994A-1
MFG: STM
Package Cooled: 99+
D/C: N/A
L5994A-1, L5995, L5996
- Table of contents:
Info of L5994A-1
Info of L5995
Info of L5996
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About L5950
PDF/DataSheet Download
Datasheet: L5950
File Size: 136083 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
About L5995
PDF/DataSheet Download
Datasheet: L5995
File Size: 82194 KB
Manufacturer: STMicro
Download : Click here to Download
About L5996
PDF/DataSheet Download
Datasheet: L5996
File Size: 78875 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
L5995 General Description
The L5995 is a power supply controller that offers a complete power management for notebook CPUs of the next generation especially for mobile Pentium II. A high precise 4 bit digital to analog converter (DAC) allows to adjust the output voltage from 1.3V to 2.0V with 0.05V binary steps. The reference can be programmed with an auxiliary bit between 2.1V and 3.5V with 0.1V steps. The high precision internal reference, digitally trimmed, assures the selected output voltage to within +/-1% over temperature and battery voltage variations. Thanks to the remote sensing inputs and to the window comparator system, embedded in the error summing structure, the device provides excellent load transient performance. The high peak current gate drive affords to have fast switching to the external power mos, performing an high efficiency. A complete power management include on board a programmable power-up sequencing, power good signal, skip mode operation and undervoltege detection. The L5995 assures a fast protection against load overvoltage and load overcurrent. Linear regulator on-board is available with an output voltage of 2.5V (+/-2%) and a current capability of 150mA, useful for CPU CLOCKBUS.
L5995 Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit |
| VIN to PWRGND |
-0.5 to 27 |
V | |
| PWRGND to VSS |
±0.5 |
V | |
| VREFS to PWRGND |
5 |
V | |
| HSTRAP, HGATE to PWRGND |
-0.5V to VIN+14V |
||
| RSTRAP, RGATE to PWRGND |
-0.5V to 14V |
||
| EABLE, FREQ, OSC, COMP, VFB, HRSNS, LRSNS |
5 |
V | |
|
VID0-3, NOSKIP, VSS1 |
7 |
V | |
|
Tj |
Junction Temperature Range |
-40 to 150 |
°C |
|
Tstg |
Storage Temperature Range |
-55 to 150 |
°C |
L5995 Features
·PROGRAMMABLE OUTPUT FROM 1.3V TO 2.0V WITH 0.05V BINARYSTEPS
·OUTPUT VOLTAGE RANGE EXTENDIBLE FROM 2V TO 3.5V
·ULTRA HIGH EFFICIENCY
·SEPARATE 5V BIAS SUPPLY AVAILABLE FOR HIGH EFFICIENCY PERFORMANCE
·EXCELLENT OUTPUT ACCURACY ±1% OVER LINE, LOAD AND TEMPERATURE VARIATIONS
·HIGH PRECISION INTERNAL REFERENCE DIGITALLY TRIMMED
·OPERATING SUPPLY VOLTAGE FROM 4.75V TO 25V
·VERYFAST LOAD TRANSIENT
·REMOTE SENSING INPUTS
·INTERNAL LINEAR REGULATOR 2.5V /150mA, ±2% PRECISION
·POWER MANAGEMENT
- PROGRAMMABLEPOWER-UP TIME
- POWER GOODOUTPUT, SKIP MODE
- OUTPUT OVERVOLTAGEPROTECTION
- OUTPUT UNDERVOLTAGE LOCKOUT
·OPERATINGFREQUENCY UP TO 1MHz
·MEETS INTEL MOBILE PENTIUM II
L5995 Typical Application
·ADVANCED MICROPROCESSOR SUPPLIES
·POWER SUPPLY FOR PENTIUM II INTEL MOBILE
L5995 Connection Diagram
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