MIC2291 Micrel Semiconductor, MIC2291 Datasheet - Page 2
MIC2291
Manufacturer Part Number
MIC2291
Description
1.2A PWM Boost Regulator Photo Flash LED Driver
Manufacturer
Micrel Semiconductor
Datasheet
1.MIC2291.pdf
(9 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC2291-15BML
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
MIC2291-15YML
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
MIC2291-34BML
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
MIC2291-34YML
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
MIC2291BD5
Manufacturer:
MICREL
Quantity:
1 144
Part Number:
MIC2291BD5
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
MIC2291YD5
Manufacturer:
MICREL
Quantity:
1 144
MIC2291
Pin Configuration
Pin Description
M9999-081104
Pin Number
Ordering Information
TSOT-23-5
Part Number
MIC2291BD5
MIC2291YD5
MIC2291-15BML
MIC2291-15YML
MIC2291-34BML
MIC2291-34YML
—
—
—
—
—
1
2
3
4
5
2mm
Pin Number
TSOT-23-5 (BD5)
Marking
EP
SSAA
SSAA
2mm MLF™ Pin Name
STA
STA
STC
STC
7
6
3
2
1
4
8
5
Code
EN
FB GND
3
4
2
Overvoltage
Protection
VIN
SW
1
5
15V
15V
34V
34V
AGND
PGND
—
—
GND
GND
OVP
VIN
SW
EN
NC
FB
–40 C to 125 C
–40 C to 125 C
–40 C to 125 C
–40 C to 125 C
–40 C to 125 C
–40 C to 125 C
Temp. Range
Junction
Pin Function
Switch node (Output): Internal power BIPOLAR collector.
Ground (Return): Ground.
Feedback (Input): Output voltage sense node. Connect the cathode of the
LED to this pin. Connect current set resistor from this pin to ground.
Enable (Input): Logic high ( 1.5V) enables regulator. Logic low ( 0.4V) shuts
down regulator.
Supply (Input): Input Voltage.
Overvoltage protection (Input): Connect to the output to clamp the maximum
output voltage.
Analog ground. Internally connected to ground.
Power ground.
No connect (no internal connection to die).
Ground (Return): Exposed backside pad.
2
2mm
2mm
2mm
2mm
Thin SOT-23-5
Thin SOT-23-5
Package
2mm MLF™
2mm MLF™
2mm MLF™
2mm MLF™
AGND
OVP
VIN
EN
8-Pin MLF™ (BML)
Fused Lead Frame
Lead Finish
1
2
3
4
Standard
Standard
Standard
Pb-Free
Pb-Free
Pb-Free
(Top View)
EP
8
7
6
5
PGND
SW
FB
NC
August, 2004
Micrel