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L6995S

Features: CONSTANT ON TIME TOPOLOGY ALLOWS OPERATION WITH LOWER DUTY THAN PWM TOPOLOGY VERY FAST LOAD TRANSIENTS 5V Vcc SUPPLY 1.5V TO 35V INPUT VOLTAGE RANGE 0.9V ±1% VREF MINIMUM OUTPUT VOLTAGE AS LOW AS 0.9V SELECTABLE SINKING MODE LOSSLESS CURRENT LIMIT REMOTE SENSING OVP,UVP LATCHED PROTECTI...

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L6995S: Features: CONSTANT ON TIME TOPOLOGY ALLOWS OPERATION WITH LOWER DUTY THAN PWM TOPOLOGY VERY FAST LOAD TRANSIENTS 5V Vcc SUPPLY 1.5V TO 35V INPUT VOLTAGE RANGE 0.9V ±1% VREF MINIMUM OUTPUT VOLTAGE A...

L6995S Data Sheet

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Part Number:
L6995S
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

CONSTANT ON TIME TOPOLOGY ALLOWS OPERATION WITH LOWER DUTY THAN PWM TOPOLOGY
VERY FAST LOAD TRANSIENTS
5V Vcc SUPPLY
1.5V TO 35V INPUT VOLTAGE RANGE
0.9V ±1% VREF
MINIMUM OUTPUT VOLTAGE AS LOW AS 0.9V
SELECTABLE SINKING MODE
LOSSLESS CURRENT LIMIT
REMOTE SENSING
OVP,UVP LATCHED PROTECTIONS
600A TYP QUIESCENT CURRENT
POWER GOOD AND OVP SIGNALS
PULSE SKIPPING AT LIGHT LOADS


Application

I/O BUS FOR CPU CORE SUPPLY
NOTEBOOK COMPUTERS
NETWORKING DC-DC
DISTRIBUTED POWER


Specifications

Symbol Parameter Value Unit
VCC
 VCC to GND
-0.3 to 6
V
VDR
 VDR to GND
-0.3 to 6
V
 HGATE and BOOT, to PHASE
-0.3 to 6
V
 HGATE and BOOT, to PGND
-0.3 to 42
V
VPHASE
 PHAS
-0.3-to 36
V
 LGATE to PGND
-0.3 to VDR+0.3
V
 ILIM, VFB, VSENSE, NOSKIP, SHDN, PGOOD, OVP, VREF,
INT, GNDSENSE to GND
-0.3 to VCC+0.3
V
BOOT, HGATE
and PHASE
PINS
 Maximum Withstanding Voltage Range
Test Condition:CDF-AEC-Q100-002 "Human Body Model"
Accepatance Criteria: "Normal Performance"
±750
V
OTHER PINS
±2000
V
Ptot
 Power dissipation at Tamb = 25°C
1
W
Tstg
 Storage temperature range
-40 to 150



Description

L6995S is a step-down controller specifically designed to provide extremely high efficiency conversion, with losses current sensing tecnique. The "constant on-time" topology assures fast load transient response. The embedded "voltage feed-forward" provides nearly constant switching frequency operation.

An integrator can be introduced in the control loop to reduce the static output voltage error.

The available remote sensing of the L6995S  improve the static and dynamic regulation recovering the wires voltage drop. Pulse skipping technique reduces power consumption at light load. Drivers current capability allows output current in excess of 20A.




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