STEVAL-PSQ001V1 STMicroelectronics, STEVAL-PSQ001V1 Datasheet - Page 7

• Manufacturer Part Number: STEVAL-PSQ001V1
• Description: BOARD EVAL BASED ON PM6680A
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-PSQ001V1

• Design Resources: STEVAL-PSQ001V1 Gerber Files STEVAL-PSQ001V1 Schematic STEVAL-PSQ001V1 Bill of Material
• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 6, Non-Isolated
• Voltage - Output: 0.9 ~ 2.5 V, 1 ~ 3.3 V, 2x 3.3 V, 2.5 V, 5 V
• Current - Output: 4A, 2A, 800mA, 400mA, 400mA, 150mA
• Voltage - Input: 5 ~ 36V
• Regulator Topology: Buck
• Frequency - Switching: 200kHz, 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: PM6680A
• Input Voltage: 5 V to 36 V
• Output Voltage: 1 V to 3.3 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: PM6680A
• Kit Application Type: Power Management
• Application Sub Type: Power Supply
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PM6680A
• Other names: 497-6425; STEVAL-PSQ001V1

PM6680A
Table 2.
N°
17
18
19
20 CSENSE1
21
22
23
24
25
26 PGOOD1
27 PGOOD2
28
29
30
31
32
PHASE1
HGATE1
COMP1
BOOT1
V5SW
OUT1
VREF
LDO5
SKIP
VCC
EN1
FB1
VIN
Pin
Pin functions (continued)
Internal 5 V regulator bypass connection.
• If V5SW is connected to OUT5 (or to an external 5 V supply) and V5SW is greater
than 4.9 V, the LDO5 regulator shuts down and the LDO5 pin is directly connected to
OUT5 through a 3 Ω (max) switch.
If V5SW is connected to GND, the LDO5 linear regulator is always on.
5V internal regulator output. It can provide up to 100 mA peak current. LDO5 pin
supplies embedded low side gate drivers and an external load.
Device supply voltage input and battery voltage sense. A bypass filter
(4 Ω and 4.7 µF) between the battery and this pin is recommended.
Positive current sense input for the switching section 1. This pin must be connected
through a resistor to the drain of the synchronous rectifier (R
a positive current limit threshold for the power supply controller.
Switch node connection and return path for the high side driver for the section 1.It is
also used as negative current sense input.
High-side gate driver ouput for section 1. This is the floating gate driver output.
Bootstrap capacitor connection for the switching section 1. It supplies the high-side
gate driver.
Pulse skipping mode control input.
• If the pin is connected to LDO5 the PWM mode is enabled.
• If the pin is connected to GND, the pulse skip mode is enabled.
• If the pin is connected to VREF the pulse skip mode is enabled but the switching
frequency is kept higher than 33 kHz (No-audible puse skip mode).
Enable input for the switching section 1.
• The section 1 is enabled applying a voltage greater than 2.4 V to this pin.
• The section 1 is disabled applying a voltage lower than 0.8 V.
When the section is disabled the High Side gate driver goes low and Low Side gate
driver goes high.
Power Good ouput signal for the section 1. This pin is an open drain ouput and when
the ouput of the switching section 1 is out of +/- 10 % of its nominal value.It is pulled
down.
Power Good ouput signal for the section 2. This pin is an open drain ouput and when
the ouput of the switching section 2 is out of +/- 10 % of its nominal value.It is pulled
down.
Feedback input for the switching section 1. This pin is connected to a resistive
voltage-divider from OUT1 to PGND to adjust the output voltage from 0.9 V to 5.5 V.
to the output votage of the switching section.
Device supply voltage pin. It supplies all the internal analog circuitry except the gate
drivers (see LDO5). Connect this pin to LDO5.
Internal 1.237 V high accuracy voltage reference. It can deliver 50 µA. Bypass to
SGND with a 100 nF capacitor to reduce noise.
Output voltage sense for the switching section 1.This pin must be directly connected
DC voltage error compensation pin for the switching section 1.
Function
DSON
sensing) to obtain
Pin settings
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