mic33153yhj Micrel Semiconductor, mic33153yhj Datasheet - Page 2

• Manufacturer Part Number: mic33153yhj
• Description: 4mhz Pwm 1.2a Internal Inductor Buck Regulator With Hyperlight Load And Power Good
• Manufacturer: Micrel Semiconductor

Ordering Information
Notes:
1.
2.
Pin Configuration
Pin Description
Micrel Inc.
MIC33153-4YHJ
MIC33153YHJ
September 2010
Part Number
Number
(Fixed)
8,9,10
5,6,7
Pin
Other options available (1V - 3.3V). Contact Micrel Marketing for details.
MLF
11
12
13
14
1
2
3
4
−
®
is GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
(Adjustable)
1
14- Pin 3.0mm x 3.5mm MLF
Number
8,9,10
5,6,7
Pin
11
12
13
14
1
2
3
4
−
Fixed Output Voltage
Marking Code
33153
33153
(Top View)
MIC
−4
AGND
PGND
Name
OUT
SNS
VIN
SW
Pin
SS
EN
PG
NC
FB
Pin Function
Soft Start: Place a capacitor from this pin to ground to program the soft start time.
Do not leave floating, 100pF minimum C
Analog Ground: Connect to central ground point where all high current paths meet
(C
Input Voltage: Connect a capacitor to ground to decouple the noise.
Power Ground.
Output Voltage: The output of the regulator. Connect to SNS pin. For adjustable option,
connect to feedback resistor network.
Switch: Internal power MOSFET output switches before Inductor
Enable: Logic high enables operation of the regulator. Logic low will shut down the device.
Do not leave floating.
Sense: Connect to V
Power Good: Open drain output for the Power Good (PG) indicator. Use a pull up resistor
from this pin to a voltage source to detect a power good condition.
Not Internally Connected.
Feedback: Connect a resistor divider from the output to ground to set the output voltage.
Nominal Output
IN
, C
Adjustable
®
Voltage
(HJ)
OUT
1.2V
, PGND) for best operation.
OUT
Junction Temperature
as close to output capacitor as possible to sense output voltage.
2
–40°C to +125°C
–40°C to +125°C
Range
SS
is required.
14- Pin 3.0mm x 3.5mm MLF
Adjustable Output Voltage
Package
14-pin 3.0 x 3.5 x 1.1mm MLF
14-pin 3.0 x 3.5 x 1.1mm MLF
(Top View)
2
®
(HJ)
M9999-092910-A
®
®
MIC33153