SMM205
Preliminary Information
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ......................–55
°
C to 125
°
C
Storage Temperature............................–65
°
C to 150
°
C
Terminal Voltage with Respect to GND:
VDD Supply Voltage .........................–0.3V to 6.0V
12VIN Supply Voltage.....................–0.3V to 15.0V
All Others ............................... –0.3V to V
DD
+ 0.7V
Output Short Circuit Current ............................... 100mA
Lead Solder Temperature (10 secs)……………….300
°
C
Junction Temperature.........................…….....…...150°C
ESD Rating per JEDEC……………………..……..2000V
Latch-Up testing per JEDEC………..……......…
±
100mA
Note - The device is not guaranteed to function outside its operating
rating. Stresses listed under Absolute Maximum Ratings may cause
permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions
outside those listed in the operational sections of the specification is
not implied. Exposure to any absolute maximum rating for extended
periods may affect device performance and reliability. Devices are
ESD sensitive. Handling precautions are recommended.
RECOMMENDED OPERATING CONDITIONS
Temperature Range (Industrial) .......... –40
°
C to +85
°
C
(Commercial)............ –5
°
C to +70
°
C
VDD Supply Voltage.................................. 2.7V to 5.5V
12VIN Supply Voltage (1)........................ 8.0V to 14.0V
VIN.............................................................GND to VDD
VOUT.......................................................GND to 15.0V
Package Thermal Resistance (θ
JA
)
28 Lead QFN………………………………….…80
o
C/W
Moisture Classification Level 1 (MSL 1) per J-STD- 020
Note (1) — Range depends on internal regulator set to 3.6V or 5.5V,
see 12VIN specification below.
DC OPERATING CHARACTERISTICS
(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol
Parameter
Notes
Min.
Typ.
Max
Unit
VDD
12VIN
VM
I
DD
I
12VIN
I
TRIM
V
ADOC
V
IH
V
IL
V
OL
OV/UV
V
HYST
Supply Voltage
Supply Voltage
Positive Sense Voltage
Power Supply Current from
VDD
Power Supply Current from
12VIN
TRIM output current
through 100Ω to 1.0V
Margin Control/ADOC
Range
Input High Voltage
Input Low Voltage
Programmable Open Drain
Output (READY)
Monitor Voltage Range
Base DC Hysteresis
Internally regulated to 5.5V
Internally regulated to 3.6V
VM pin
All TRIM pins and 12VIN floating
All TRIM pins and VDD floating
TRIM Sourcing Max Current
TRIM Sinking Max Current
Depends on Trim range of DC-
DC Converter
VDD = 2.7V
VDD = 5.0V
VDD = 2.7V
VDD = 5.0V
ISINK = TBD
COMP1 and COMP2 pins
COMP1 and COMP2 pins,
V
TH
– V
TL
— Note 1
–0.3
3
10
1.5
1.5
VREF_CNTL
2.7
10
6
–0.3
3.3
5.5
15
14
VDD
V
V
V
mA
mA
mA
mA
3
3
5
5
VDD
VDD
VDD
0.1xVDD
0.3xVDD
0.2
VDD
V
V
V
V
V
mV
0.9xVDD
0.7xVDD
Note 1 – The Base DC Hysteresis voltage is measured with a 1.25V external voltage source. The resulting value is determined by subtracting
Threshold Low from Threshold High (V
TH
– V
TL
) while monitoring the FAULT# pin state. Base DC Hysteresis is measured with a 1.25V input. Actual
DC Hysteresis is derived from the equation: (V
IN
/V
REF
)(Base Hysteresis). For example, if V
IN
= 2.5V and V
REF
= 1.25V then Actual DC Hysteresis =
(2.5V/1.25V) (0.003V) = 6mV.
Summit Microelectronics, Inc
2069 1.4 6/23/03
5
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
