mic2291yd5 Micrel Semiconductor, mic2291yd5 Datasheet - Page 2
mic2291yd5
Manufacturer Part Number
mic2291yd5
Description
Mic2291 1.2a Pwm Boost Regulator Photo Flash Led Driver
Manufacturer
Micrel Semiconductor
Datasheet
1.MIC2291YD5.pdf
(10 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MIC2291YD5
Manufacturer:
MICREL
Quantity:
1 144
Part Number:
MIC2291YD5
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Ordering Information
Pin Configuration
Pin Description
Micrel, Inc.
May 2007
MIC2291-15BML
MIC2291-34BML
MIC2291-15YML
MIC2291-34YML
Notes:
*
**
Pin Number
Part Number
MIC2291BD5
MIC2291YD5
TSOT23-5
Under bar / Over bar symbol may not be to scale.
Over bar symbol located after Pin 1 identifier.
―
―
―
―
―
1
2
3
4
5
5-Pin TSOT23 (D5)
EN
FB GND
3
4
Pin Number
2x2 MLF-8
Marking*
2
SSAA
SSAA
STA**
STC**
EP
STC
STA
7
6
3
2
1
4
8
5
SW
VIN
1
5
Overvoltage
Protection
Pin Name
AGND
PGND
GND
GND
OVP
15
34
―
―
15
34
VIN
SW
EN
NC
FB
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
–40° to +125°C
Pin Name
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.
Temp. Range
Junction
2
8-Pin 2mm x 2mm MLF
8-Pin 2mm x 2mm MLF
8-Pin 2mm x 2mm MLF
8-Pin 2mm x 2mm MLF
AGND
5-Pin Thin SOT23
5-Pin Thin SOT23
8-Pin 2mm x 2mm MLF
OVP
VIN
EN
Package
1
2
3
4
EP
®
®
®
®
8
7
6
5
®
PGND
SW
FB
NC
(ML)
Lead Finish
Standard
Standard
Standard
Pb-Free
Pb-Free
Pb-Free
M9999-051507
MIC2291