XRP7740ILB-F Exar Corporation, XRP7740ILB-F Datasheet - Page 8

• Manufacturer Part Number: XRP7740ILB-F
• Description: IC CTRLR PWM/LDO STP-DWN 40TQFN
• Manufacturer: Exar Corporation
• Type: Step-Down (Buck)r

Specifications of XRP7740ILB-F

• Number Of Outputs: 5
• Package / Case: 40-WFQFN Exposed Pad
• Topology: Step-Down (Buck) (4), Linear (1)
• Function: Standby Power and GPIOs
• Frequency - Switching: 1.5MHz
• Voltage/current - Output 1: 0.9 V ~ 5.1 V, 5A
• Voltage/current - Output 2: 0.9 V ~ 5.1 V, 15A
• Voltage/current - Output 3: 0.9 V ~ 5.1 V, 5A
• W/led Driver: No
• W/supervisor: Yes
• W/sequencer: No
• Voltage - Supply: 6.5 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Current - Output: 5A, 15A
• Voltage - Output: 0.9 ~ 5.1 V
• Voltage - Input: 6.5 ~ 20 V
• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Switching Frequency: 300 KHz to 1500 KHz
• Operating Supply Voltage: 6.5 V to 20 V
• Supply Current: 50 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Output Voltage: 0.9 V to 5.1 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 1016-1352 - EVAL BOARD FOR XRP77401016-1344 - IN-SOCKET PROG BRD VIA USB/GUI
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 1016-1353

REV 1.1.0
Exposed
3,4,5,6
12,13,
14,15
PAD
7,8
40
9
GPIO0-GPIO3
GPIO4_SDA,
GPIO5_SCL
LDOOUT
ENABLE
VOUT1-
VOUT4
AGND
EXAR CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY.
EXAR RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET.
These pins can be configured as inputs or outputs to implement custom flags,
power good signals and enable/disable controls. A GPIO pin can also be
programmed as an input clock synchronizing IC to external clock. Refer to the
“GPIO Pins” Section and the “External Clock Synchronization” Section for more
information.
I
perform GPIO functions in applications when I
Voltage sense.
Connect to the output of the corresponding power stage.
Output of the Standby LDO. It can be configured as a 5V or 3.3V output. A
compensation capacitor should be used on this pin [see Application Note].
If ENABLE is pulled high, the chip powers up (logic reset, registers configuration
loaded, etc.). If pulled low for longer than 100us, the XRP7740 is placed into
shutdown.
Analog Ground.
Connect to analog ground (as noted above for pin 11).
2
C serial interface communication pins. These pins can be re-programmed to
Quad-Output Digital PWM Buck Controller
8
2
C bus is not used.
XRP7740