IDTP9120 Datasheet, PDF (1/24 Pages) Integrated Device Technology – Triple Channel Synchronous Step- Down Switcher with Integrated FET

Triple Channel Synchronous Step-
Down Switcher with Integrated FET
Advanced Datasheet
Features
 Input Voltage Range: 2.7V to 5.5V
 Three step-down converters with integrated FETs
 Buck1: 2A
 Buck2: 2A
 Buck3: 3A
 Buck 3 to operate in Buck or Switch mode
 Factory Programmable Output Voltage: 0.8 - 3.4V
 Automatic PFM/PWM or forced PWM mode
 Switching frequency 2MHz
 Optional Programmable Sequence Mode
 Power Good and/or Power On Reset Output
 -40°C to +85°C operating temperature range
 Package: QFN 24-ld 4 x 4mm x 0.8mm (NBG24)
Applications
Point of Load Regulation in a variety of low power
applications:
 Solid State Disk Drive (SSD) Power Management
 Low Power USB powered applications
 Set Top Box / TV Power Supply
 Portable Gaming
IDTP9120
Description
IDTP9120 is a fully integrated power management IC
designed to provide three programmable voltage rails from a
single 5V or 3.3V input rail with high efficiency and low
quiescent currents in sleep mode or no-load condition.
The device offers selectable direct buck enable inputs or
programmable sequencing with power good and power on
reset generation.
To support low power operation, the IDTP9120 supports
both sleep and standby modes.
The IDTP9120 is available in a 4mm x 4mm, 24-ld, QFN
package and is guaranteed to operate over the ambient
temperature range -40°C to +85°C.
Simplified Application Diagram
INPUT VOLTAGE
VIN
PVIN1
PVIN2
PVIN3
VREF(optional)
VGND
VINSEL
FB1
LX1
PGND1
FB2
LX2
DEVSLPIN
GPI3
GPIO14
GPIO15
GPO16
GPIO17
PGND2
FB3
LX3
PGND3
VOUT1
VOUT2
VOUT3
INPUT VOLTAGE
VIN
PVIN1
PVIN2
PVIN3
VINSEL
VREF(optional)
VGND
DEVSLPIN
GPI3
GPIO14
GPIO15
GPO16
GPIO17
FB1
LX1
PGND1
FB2
LX2
PGND2
FB3
LX3
PGND3
VOUT1
VOUT2
VOUT3
IDTP9120 with VINSEL (pin 4) in Buck Configuration for VOUT3
IDTP9120 with VINSEL (pin 4) in Switch Configuration for VOUT3
March 12, 2014
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© 2014 Integrated Device Technology, Inc.