XR76205EL-Q Datasheet, PDF (9/25 Pages) Exar Corporation – Power Management

Step-Down Regulators >20V
Exar’s family of synchronous and non-synchronous step-down regulators
provides a fully integrated single-chip solution for Point-of-Load (POL)
applications with high current output requirements. With high input voltage
range and operating switching frequency options, these regulators fit in a wide
range of applications and power architectures by enabling step-down DC/DC
conversions from various intermediate power bus levels and providing a highly
efficient and high performing solution in the most compact footprint.
Applications
■■ _{Distributed power architectures}
■■ _{Point-of-Load (POL) converters}
■■ _{Point-of-Load (POL) modules}
■■ _{FPGAs, DSPs and processor power supplies}
Part
Number
XR76203
XR76205
XR76208
Output
Current Frequency
(A)
(kHz)
3
5
100 to 800
8
Operating
Voltage (V)
Min Max
3
40
Output
Voltage
Adj.
SP7650
3
300
2.5 28
Adj.
SP7652
6
600
2.5 28
Adj.
SP7663
6
600
3
22
Adj.
SP7662/
XRP7662
12
300
3
22
Adj.
XR76108
8
XR76112
12
200 to 800 3
22
Adj.
XR76115
15
XR76117
15 200 to 800 4.5 22
Adj.
XR76121
20 200 to 800 4.5 22
Adj.
SP7651
3
900
2.5 20
Adj.
Output Voltage
Range (V)
Min
Max
0.6
30
0.8
27
0.8
27
0.8
20.2
0.8
20.2
0.6
18
0.6
18
0.6
18
0.8
19
Accuracy Efficiency Package
(%)
(%)
(mm) Features
95
■■ _{Patented COT control}
0.5
96
5x5
QFN
■■ _{UVLO, OTP, soft-start, hiccup, PGOOD}
■■ _{Current limit and short protection}
96
■■ _Synchronous
1
95
7x4
DFN
■■ _{UVLO, OTP, soft-start}
■■ _{Short-circuit protection/auto-restart}
■■ _Synchronous
1
92
7x4
DFN
■■ _{UVLO, OTP, soft-start}
■■ _{Short-circuit protection/auto-restart}
■■ _Synchronous
1
91
7x4
DFN
■■ _{UVLO, OTP, soft-start, current limiting}
■■ _{Short-circuit protection/auto-restart}
■■ _Synchronous
1
93
7x4
DFN
■■ _{UVLO, OTP, soft-start, current limiting}
■■ _{Short-circuit protection/auto-restart}
5x5
QFN
■■ _{Patented COT control}
0.5
96
■■ _{UVLO, OTP, soft-start, hiccup, PGOOD}
6x6
■■ _{Current limit and short protection}
QFN
0.5
97
5x6
QFN
■■ _{Patented COT control}
■■ _{UVLO, OTP, soft-start, hiccup, PGOOD}
0.5
97
5x6
QFN
■■ _{Current limit and short protection}
■■ _Synchronous
1
92
7x4
DFN
■■ _{UVLO, OTP, soft-start}
■■ _{Short-circuit protection/auto-restart}
Enable/Mode
VIN
CIN
Power Good
R
CVCC CSS RON
EN
BST
VIN
SW
PVIN
ILIM
PGOOD
XR76117
VCC _XR76121 FB
SS
FCCM
TON
AGND
VSNS
PGND
CBST
RLIM
L1
VOUT
R1
VOUT _R2
COUT
15A and 20A Step-Down Regulator
PVIN
13
SW
12
11
PGND
BST 14
EN 15
SS 16
AGND
10 VCC
9 VIN
0 VSNS
1234567
XR76121 Pin Assignment
9