MIC2205-1.38YML MICREL [Micrel Semiconductor], MIC2205-1.38YML Datasheet - Page 2

• Manufacturer Part Number: MIC2205-1.38YML
• Description: 2MHz PWM Synchronous Buck Regulator with LDO Standby Mode
• Manufacturer: MICREL [Micrel Semiconductor]

Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
April 2005
Note:
1. Other Voltage options available. Contact Micrel for details.
Part Number
MIC2205-1.3YML
MIC2205-1.38YML
MIC2205-1.5YML
MIC2205-1.58YML
MIC2205-1.8YML
MIC2205-1.85YML
MIC2205YML
Pin Number
EP
10
1
2
3
4
6
7
8
9
5
Pin Name
LOWQ
AGND
PGND
_____
AVIN
BIAS
GND
LDO
VIN
SW
EN
FB
Output Voltage
1.3V
1.38V
1.5V
1.58V
1.8V
1.85V
Adj.
Pin Function
Analog (signal) Ground.
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.
Analog Supply Voltage (Input): Supply voltage for the analog control circuitry and
LDO input power. Requires bypass capacitor to GND.
Feedback. Input to the error amplifier. For the Adjustable option, connect to the
external resistor divider network to set the output voltage. For fixed output
voltage options, connect to V
voltage.
Enable (Input). Logic low will shut down the device, reducing the quiescent
current to less than 5µA.
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.
Supply Voltage (Input): Supply voltage for the internal switches and drivers.
Switch (Output): Internal power MOSFET output switches.
Power Ground.
Ground, backside pad.
AGND
AVIN
BIAS
LDO
FB
3mm x 3mm MLF-10L (ML)
(1)
1
2
3
4
5
Junction Temp. Range
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
EP
2
10
9
8
7
6
OUT
PGND
SW
VIN
LOWQ
EN
and an internal resistor network sets the output
OUT
for LDO mode operation.
Package
3x3 MLF-10L
3x3 MLF-10L
3x3 MLF-10L
3x3 MLF-10L
3x3 MLF-10L
3x3 MLF-10L
3x3 MLF-10L
www.micrel.com
M9999-041105
Lead Finish
Pb-free
Pb-free
Pb-free
Pb-free
Pb-free
Pb-free
Pb-free
MIC2205