SC198AMLTRT Semtech, SC198AMLTRT Datasheet - Page 5

• Manufacturer Part Number: SC198AMLTRT
• Description: IC DUAL DC-DC BUCK CONV 20-MLPQ
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC198AMLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Programmable
• Current - Output: 800mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC198AMLTR

Pin Descriptions
Pin #
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
T
THERMAL PAD
MODE/SYNC
Pin Name
VOUTA
VOUTB
CTLA0
CTLA1
CTLA2
CTLB2
CTLB1
CTLB0
GNDA
GNDR
GNDB
VINA
VINB
VINR
ENA
LXA
ENB
LXB
NC
NOT RECOMMENDED FOR NEW DESIGN
Input power supply voltage for converter A
Connection point for the inductor on converter A
Ground reference to converter A
Feedback control input for converter A
Voltage select control pin 0 for output A (see Table 1 — Output Voltage Options).
Voltage select control pin 1 for output A (see Table 1 — Output Voltage Options).
Voltage select control pin 2 for output A (see Table 1 — Output Voltage Options).
Ground for reference supply
Voltage select control pin 2 for output B (see Table 1 — Output Voltage Options).
Voltage select control pin 1 for output B (see Table 1 — Output Voltage Options).
Voltage select control pin 0 for output B (see Table 1 — Output Voltage Options).
Feedback control input for converter B
Ground reference for converter B
Connection point for the inductor on converter B
Input power supply voltage for converter B
Enable pin for output B
Oscillator synchronization input — connect to VIN for forced PWM mode, ground for power-save
mode or connect to an external clock for frequency synchronization.
Reference supply input
Not connected — Leave open
Enable pin for output A
Thermal pad for heatsinking purposes — connect to ground plane using multiple vias — not con-
nected internally
Pin Function
SC198A
5