STEVAL-ISA051V1 STMicroelectronics, STEVAL-ISA051V1 Datasheet - Page 33
![BOARD EVAL PM6670S DDR2/3](/photos/9/13/91334/steval-isa051v1_sml.jpg)
STEVAL-ISA051V1
Manufacturer Part Number
STEVAL-ISA051V1
Description
BOARD EVAL PM6670S DDR2/3
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA051V1
Design Resources
STEVAL-ISA051V1 Gerber Files STEVAL-ISA051V1 Schematic STEVAL-ISA051V1 Bill of Material
Main Purpose
Special Purpose DC/DC, DDR Memory Supply
Outputs And Type
4, Non-Isolated
Voltage - Output
1.5V, 1.8V
Voltage - Input
4.5 ~ 28V
Regulator Topology
Buck
Board Type
Fully Populated
Utilized Ic / Part
PM6670
Input Voltage
4.5 V to 28 V
Output Voltage
1.8 V, 1.5 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
PM6670S
Kit Application Type
Power Management
Application Sub Type
DDR2/3 Memory Power Supply Controller
Kit Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Power - Output
-
Frequency - Switching
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
PM6670S
Other names
497-8411
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISA051V1
Manufacturer:
STMicroelectronics
Quantity:
1
PM6670S
7.1.7
Figure 38. Soft-start at heavy load (a) and short-circuit (b) conditions, pulse-skip enabled
After a fixed 3 ms total time, the soft-start finishes and UVP is released: if the output voltage
doesn't reach the under voltage threshold within soft-start duration, the UVP condition is
detected and the device performs a soft end and latches off. Depending on the load
conditions, the inductor current may or may not reach the nominal value of the current limit
during the soft-start (
Power Good signal
The PG pin is an open drain output used to monitor output voltage through VSNS (in fixed
output voltage mode) or MODE (in adjustable output voltage mode) pins and is enabled
after the soft-start timer has expired. PG signal is held low if the VDDQ output voltage drops
10 % below or rises 10 % above the nominal regulated value. The PG output can sink
current up to 4 mA.
(a)
Figure 38
Doc ID 14432 Rev 4
shows two examples).
(b)
Device description
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