MIC2169BYMM Micrel Inc, MIC2169BYMM Datasheet - Page 3

• Manufacturer Part Number: MIC2169BYMM
• Description: IC CTLR PWM BUCK SYNC 10MSOP
• Manufacturer: Micrel Inc

Specifications of MIC2169BYMM

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 550kHz
• Duty Cycle: 92%
• Voltage - Supply: 3 V ~ 14.5 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Frequency-max: 550kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3641-5; MIC2169BYMM

Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
April 2010
MIC2169BYMME
MIC2169BYMM
Part Number
Pin Number
ePad
10
1
2
3
4
5
6
7
8
9
10-Pin ePad MSOP (MME)
Frequency
500kHz
500kHz
COMP/EN
Pin Name
VSW
GND
VDD
HSD
LSD
BST
VIN
CS
FB
EP
Junction Temperature Range
Pin Function
Supply Voltage (Input): +3V to +14.5V.
5V Internal Linear Regulator (Output): V
supply voltage and an internal supply bus for the IC. When V
VDD to the input supply through a 10Ω resistor.
Current Sense (Input): Current-limit comparator noninverting input. The current
limit is sensed across the MOSFET during the ON time. The current can be set
by the resistor in series with the CS pin.
Compensation / Enable (Input): Dual function pin. Pin for external compensation.
If this pin is pulled below 0.25V, with the reference fully up the device shuts
down (50μA typical current draw).
Feedback (Input): Input to error amplifier. Regulates error amplifier to 0.8V.
Ground (Return).
Low-Side Drive (Output): High-current driver output for external synchronous
MOSFET.
Switch (Return): High-side MOSFET driver return.
High-Side Drive (Output): High-current output-driver for the high-side MOSFET.
When V
V
Boost (Input): Provides the drive voltage for the high-side MOSFET driver. The
gate-drive voltage is higher than the source voltage by V
Connect to Ground.
IN
> 5V, 4.5V threshold MOSFETs should be used.
-40° to +125°C
-40° to +125°C
IN
is between 3.0V to 5V, 2.5V threshold MOSFETs should be used. At
3
(1)
10-Lead ePad MSOP
10-Lead MSOP
DD
Package
is the external MOSFET gate-drive
10-Pin MSOP
DD
minus a diode drop.
IN
is <5V, short
Lead Finish
M9999-041210-B
Pb-Free
Pb-Free
MIC2169B