MIC2196 Micrel Semiconductor, MIC2196 Datasheet - Page 2

• Manufacturer Part Number: MIC2196
• Description: 400kHz SO-8 Boost Control IC
• Manufacturer: Micrel Semiconductor

MIC2196
Pin Configuration
Pin Description
MIC2196
Pin Number
1
2
3
4
5
6
7
8
Ordering Information
MIC2196BM
Standard
Part Number
MIC2196YM
Pin Name
EN/UVLO
Pb-Free
COMP
OUTN
GND
VDD
VIN
CS
FB
EN/UVLO
Output Voltage
COMP
Adjustable
CS
FB
Pin Function
Compensation (Output): Internal error amplifier output. Connect to a
capacitor or series RC network to compensate the regulator’s control loop.
Feedback (Input): Regulates FB to 1.245V.
Enable/Undervoltage Lockout (input): A low level on this pin will power down
the device, reducing the quiescent current to under 0.5 A. This pin has two
separate thresholds, below 1.5V the output switching is disabled, and below
0.9V the device is forced into a complete micropower shutdown. The 1.5V
threshold functions as an accurate undervoltage lockout (UVLO) with 100mV
hysteresis.
The (+) input to the current limit comparator. A built in offset of 100mV
between CS and GND in conjunction with the current sense resistor sets the
current limit threshold level. This is also the (+) input to the current amplifier.
3V internal linear-regulator output. VDD is also the supply voltage bus for the
chip. Bypass to GND with 1 F.
Ground.
High current drive for N channel MOSFET. Voltage swing is from ground to
VIN. R
Input voltage to the control IC. This pin also supplies power to the gate drive
circuit.
1
2
3
4
8 Lead SOIC (M)
ON
is typically 3 @ 5V
2
Frequency Junction Temp. Range
400KHz
8 VIN
7
6
5
OUTN
GND
VDD
–40 C to +125 C
IN
.
8-lead SOIC
Package
August 2004
Micrel