SC196ULTRT Semtech, SC196ULTRT Datasheet - Page 5

• Manufacturer Part Number: SC196ULTRT
• Description: IC SYNC BUCK CONV 1.5A 10-MLPD
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC196ULTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5.5 V
• Current - Output: 1.5A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLPD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC196ULTR

© 2007 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
PVIN
GND
ADJ
PAD
VIN
EN
LX
Pin Function
Input supply voltage connection to switching FETs — connect the input capacitor between this
pin and PGND directly.
Input supply voltage for control circuits
Oscillator synchronization input. Tie to V
enter PSAVE mode at light loads. Apply an external clock signal for frequency synchronization.
Enable digital input; a high input enables the SC196, a low disables and reduces quiescent cur-
rent to less than 1μA. In shutdown, LX becomes high impedance.
Regulated output voltage sense pin — connect to the output capacitor allowing sensing of the
output voltage.
Output Voltage Adjust and feedback compensation pin - connect resistor divider between this
pin and GND to set the desired output voltage level.
MODE select pin — MODE = V
this function.
Ground
Power Ground
Inductor connection to the switching FETs
Pad for heatsinking purposes
multiple vias.
—
IN
not connected internally. Connects to ground plane using
to select 100% duty cycle function, MODE = GND to disable
5
IN
for forced PWM mode or GND to allow the part to
PRELIMINARY
www.semtech.com
SC196