MIC3385-1.5YHL MICREL [Micrel Semiconductor], MIC3385-1.5YHL Datasheet - Page 2

• Manufacturer Part Number: MIC3385-1.5YHL
• Description: 8MHz Inductorless Buck Regulator with LDO Standby Mode
• Manufacturer: MICREL [Micrel Semiconductor]

Ordering Information
Notes:
1.
2.
Pin Configuration
Pin Description
Micrel, Inc.
May 2010
Part Number
MIC3385YHL
MIC3385-1.5YHL
Pin Number
MLF® is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Other voltage options available. Please contact Micrel for details.
8,9,10
5,6,7
11
12
13
14
1
2
3
4
Pin Name
LOWQ
AVIN
BIAS
OUT
GND
LDO
VIN
SW
EN
FB
Voltage
1.5V
Adj.
Pin Function
Feedback. Input to the error amplifier. Connect to the external resistor divider network to set
the output voltage.
Supply Voltage (Input): Supply voltage for the internal switches and drivers.
Enable LDO Mode (Input): Logic low enables the internal LDO and disables the PWM
operation. Logic high enables the PWM mode and disables the LDO mode.
Enable (Input). Logic low will shut down the device, reducing the quiescent current to less
than 5μA.
Switch Output after inductor.
Switch (Output): Internal power MOSFET output switches before Inductor
Power Ground. Requires input capacitor to GND.
Analog Supply Voltage (Input): Supply voltage for the analog control circuitry and LDO input
power. Requires bypass capacitor to GND.
LDO Output (Output): Connect to V
Internal circuit bias supply. Must be de-coupled to signal ground with a 0.1μF capacitor and
should not be loaded.
Temperature Range
LOWQ
14- Pin 3mm x 3.5mm MLF
OUT
OUT
OUT
–40° to +125°C
–40° to +125°C
VIN
EN
FB
1
2
3
4
5
6
7
2
OUT
14 BIAS
13
12 AVIN
11
10
14-Pin 3mm x 3.5mm MLF
14-Pin 3mm x 3.5mm MLF
9
8
for LDO mode operation.
®
(HL)
LDO
GND
SW
SW
SW
Package
®
®
Lead Finish
M9999-051310-B
Pb-free
Pb-free
MIC3385