XRP7724 Datasheet, PDF (2/29 Pages) Exar Corporation – Quad Channel Digital PWM/PFM Programmable Power Management System

XRP7724
Quad Channel Digital PWM/PFM
Programmable Power Management System
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
VCCD, LDO5, LDO3_3, GLx, VOUTx ............. -0.3V to 7.0V
ENABLE, 5V_EXT ....................................... -0.3V to 7.0V
GPIO0/1, SCL, SDA................................................ 6.0V
PSIOs Inputs, BFB .................................................. 18V
DVDD, AVDD ........................................................ 2.0V
VCC ...................................................................... 28V
LX# .............................................................-1V to 28V
BSTx, GHx .................................................... VLXx + 6V
Storage Temperature .............................. -65°C to 150°C
Power Dissipation ................................ Internally Limited
Lead Temperature (Soldering, 10 sec).................... 300°C
ESD Rating (HBM - Human Body Model) .................... 2kV
OPERATING RATINGS
Input Voltage Range VCC ...............................5.5V to 25V
Input Voltage Range VCC = LDO5 ................ 4.75V to 5.5V
VOUT1, 2, 3, 4 ...................................................... 5.5V
Junction Temperature Range ....................-40°C to 125°C
JEDEC Thermal Resistance θJA ..........................30.2°C/W
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for
reference purposes only. Unless otherwise indicated, VCC = 5.5V to 25V, 5V EXT open. Note that in cases where there is a
discrepancy in values shown in this section and other sections of the datasheet, the values in the Electrical Specification
section shall be deemed correct and supersede the other values.
QUIESCENT CURRENT
Parameter
VCC Supply Current in SHUTDOWN
ENABLE Turn On Threshold
Min.
0.82
Typ.
10
ENABLE Pin Leakage Current
-10
Max.
20
0.95
10
Units
µA
V
uA
VCC Supply Current in STANDBY
440
600
µA
VCC Supply Current 2ch PFM
VCC Supply Current 4ch PFM
VCC Supply Current ON
3.1
mA
4.0
mA
18
mA
Conditions
EN = 0V, VCC = 12V
VCC = 12V Enable Rising
EN=5V
EN=0V
LDO3_3 disabled, all channels disabled
GPIOs programmed as inputs
VCC=12V,EN = 5V
2 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, Ultra-sonic
off, VCC=12 V, No I²C activity.
4 channels on set at 5V, VOUT forced to
5.1V, no load, non-switching, Ultra-sonic
off, VCC=12V, No I²C activity.
All channels enabled, Fsw=600kHz, gate
drivers unloaded, No I²C activity.
© 2012 Exar Corporation
2/29
Rev. 1.0.1