SC194BMLTRT Semtech, SC194BMLTRT Datasheet - Page 5

• Manufacturer Part Number: SC194BMLTRT
• Description: IC SYNC BUCK CONV 1A 10-MLP
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC194BMLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adjustable
• Current - Output: 1A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC194BMLTR

© 2006 Semtech Corp.
POWER MANAGEMENT
Pin Descriptions
Pin #
10
1
2
3
4
5
6
7
8
9
T
SYNC/PWM
THERMAL
Pin Name
MODE
PGND
VOUT
VID0
VID1
GND
PAD
VIN
EN
LX
Pin Function
Input power supply voltage
MODE select pin where MODE = V
disable
Oscillator synchronization input
enter PSAVE mode at light loads. Apply an external clock signal for frequency synchronization.
Enable digital input
current to less than 1μA. In shutdown, LX becomes high impedance.
Regulated output voltage and feedback for SC194B
Logic level bit 0 is used in conjunction with VID1 to set the output voltage. Connect high or low
as required to select the desired output voltage. If not connected, the output voltage will be
indeterminate.
Logic level bit 1 is used in conjunction with VID0 to set the output voltage. Connect high or low
as required to select the desired output voltage. If not connected, the output voltage will be
indeterminate.
Ground
Power Ground
Inductor connection to the switching FETs
Pad is for heatsinking purposes
plane using multiple vias.
—
A high input enables the SC194B, a low disables and reduces quiescent
—
—
Tie to V
not connected internally. Connect exposed pad to ground
IN
5
to select 100% duty cycle function and MODE = GND to
IN
for forced PWM mode or GND to allow the part to
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SC194B