EVAL6928D STMicroelectronics, EVAL6928D Datasheet - Page 3

• Manufacturer Part Number: EVAL6928D
• Description: BOARD EVAL L6928 STEP DOWN REG
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of EVAL6928D

• Design Resources: EVAL6928D/L6928D Gerber Files
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 0.6 ~ 5.5V
• Current - Output: 800mA
• Voltage - Input: 2 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1.4MHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6928
• Input Voltage: 2 V to 5.5 V
• Output Voltage: 0.6 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant
• For Use With/related Products: L6928
• Other names: 497-4745

L6928
1
Pin settings
Figure 2.
Table 1.
Pin n°
1
2
3
4
5
6
7
8
PGOOD
COMP
SYNC
Name
GND
RUN
VFB
V
Pin connection (top view)
Pin description
LX
CC
Shutdown input. When connected to a low level (lower than 0.4 V) the device
stops working. When high (higher than 1.3 V) the device is enabled.
Error amplifier output. A compensation network has to be connected to this pin.
Usually a 220 pF capacitor is enough to guarantee the loop stability.
Error amplifier inverting input. The output voltage can be adjusted from 0.6 V up
to the input voltage by connecting this pin to an external resistor divider.
Ground.
Switch output node. This pin is internally connected to the drain of the internal
switches.
Input voltage. The start up input voltage is 2.2 V (typ) while the operating input
voltage range is from 2 V to 5.5 V. An internal UVLO circuit realizes a 100 mV
(typ.) hysteresis.
Operating mode selector input. When high (higher than 1.3 V) the low
consumption mode is selected. When low (lower than 0.5 V) the low noise mode
is selected. If connected with an appropriate external synchronization signal
(from 500 kHz up to 1.4 MHz) the internal synchronization circuit is activated
and the device works at the same switching frequency.
Power good comparator output. It is an open drain output. A pull-up resistor
should be connected between PGOOD and V
requirements). The pin is forced low when the output voltage is lower than 90%
of the regulated output voltage and goes high when the output voltage is greater
than 90% of the regulated output voltage. If not used the pin can be left floating.
COMP
GND
RUN
VFB
Doc ID 11051 Rev 6
1
2
3
4
D01IN1239AMOD
Description
8
7
6
5
PGOOD
SYNC
V
LX
CC
OUT
(or V
CC
depending on the
Pin settings
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