SC900IMLTRT View Datasheet(PDF) - Semtech Corporation
Part Name
Description
Manufacturer
SC900IMLTRT Datasheet PDF : 23 Pages
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SC900
POWER MANAGEMENT
Pin Description
Pin#
Pin
Name
Pin Function
1
LDOB LDO B output.
2
INB Input supply for the digital system logic and the LDO B pass transistor.
3
SDA Bidirectional open drain digital I/O pin. I2C serial data.
4
SCL Digital input. I2C serial clock.
5
EN
Digital input. High to enable part. Low to disable part (sleep mode). Note I2C control is active only
when part is enabled.
6
A0 One bit address for connecting two SC900 devices onto the system through the I2C interface.
7
DGND Digital ground.
8
VASEL LDO A selection default voltage. Tie this pin to ground for 1.8V or INB for 2.8V.
9
LDOPGD
Digital output. State change indicates that one of four LDO output voltages (A,C,D or E) is out of
spec. Note, desired state of pin is programmable through the I2C interface.
10
ARST
Digital output. State change indicates LDOA output voltage is out of spec. Note; desired state of
pin is programmable through the I2C interface.
11
VREF Bandgap reference output voltage. Connect at least 0.1µF to ground (CVREF ≥ 0.1µF).
12
GND Analog ground.
13
VIN Analog supply voltage.
14
INE Input supply for the LDO E pass transistor.
15
LDOE LDO E output.
16 LDOD LDO D output.
17
INCD Input supply for the LDO C and LDO D pass transistors.
18 LDOC LDO C output.
19
INA Input supply for the LDO A pass transistor.
20
LDOA LDO A output.
T Thermal Pad for heat sinking purposes. Connect to ground plane using multiple vias. Not connected
internally.
2005 Semtech Corp.
8
www.semtech.com
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