SC4215A_07 Datasheet, PDF (4/9 Pages) Semtech Corporation – Very Low Input /Very Low Dropout 2 Amp Regulator With Enable

POWER MANAGEMENT
Pin Configuration
SC4215A
Ordering Information
Part Number
SC4215ASTRT⁽¹⁾⁽²⁾
Package Temp. Range (T_J)
SOIC-8EDP -40 to +125°C
SC4215AEVB
Evaluation Board
Notes:
(1) Only available in tape and reel packaging, 2500 devices
for the SOIC-8EDP package.
(2) Lead-free product. This product is fully WEEE and RoHS
compliant.
Top View
NC
GND
EN
FB
VIN
VO
NC
NC
GND
FB
VO
NC
Bottom View
8
1
7 2 Exposed
Die Pad
6
3
5
4
GND
NC
EN
VIN
NC
SOIC-8EDP
SOIC-8EDP
Pin Descriptions
Pin # Pin Name Pin Desciption
2
EN Enable Input. Pulling this pin below 0.4V turns the regulator off, reducing the quiescent current to a
fraction of its operating value. The device will be enabled if this pin is left open. Connect to VIN if not
being used.
3
VIN Input voltage. For regulation at full load, the input to this pin must be between (VO+ 0.5V) and 6.0V.
Minimum VIN = 1.4V. A large bulk capacitance should be placed closely to this pin to ensure that the
input supply does not sag below 1.4V. Also a minimum of 4.7uF ceramic capacitor should be placed
directly at this pin.
6
VO The pin is the power output of the device. A minimum of 10uF capacitor should be placed directly at
this pin.
7
FB
When this pin is grounded, an internal resistor divider sets the output voltage to 1.2V. If connected
to the Vo pin, the output voltage will be set at 0.5V. If external feedback resistors are used, the output
voltage will be (See Application Circuits on page 1):
VO
=
0.5(R1+ R2)
R2
Volts
8
GND Reference ground. The GND pin and the exposed die pad must be connected together at the IC pin.
1,4,5
NC No Connection.
THERMAL Pad for heatsinking purposes. Connect to ground plane using multiple vias. Not electrically connected
PAD internally.
 2007 Semtech Corp.
4
www.semtech.com