XRP7675 Datasheet, PDF (3/12 Pages) Exar Corporation – 3A 18V Synchronous PFM/PWM Step-Down Regulator

XRP7 6 7 5
3 A 1 8 V Sy n ch r on ou s PFM/ PW M St ep - Dow n Reg u lat or
Parameter
EN Shutdown Threshold
EN Shutdown Hysteresis ¹
EN Lockout Threshold
EN Lockout Hysteresis
UVLO Threshold
UVLO Hysteresis
Soft - start Current
Soft - start Time ¹
Thermal Shutdown ¹
Thermal Shutdown Hysteresis ¹
Min.
1.1
2.2
3.65
Note 1: Guaranteed by design.
Note 2: RDSON=(V SW1 - VSW2 )/(I SW1 - I SW2 )
BLOCK DIAGRAM
Typ.
1.5
0.35
2.5
0.21
4.00
0.20
5
15
160
20
Max.
2
2.7
4.25
Units
V
V
V
V
µA
ms
°C
°C
Conditions
VIN Rising
CSS=0.1µF, I OUT=500mA
Fig. 2: XRP7675 Block Diagram
© 2013 Exar Corporation
3/ 12
Rev. 1.0.0