ST1S10 STMicroelectronics, ST1S10 Datasheet - Page 4

• Manufacturer Part Number: ST1S10
• Description: Monolithic synchronous step-down regulator
• Manufacturer: STMicroelectronics

Specifications of ST1S10

• Input Voltage Range: 2.5 V to 18 V
• Max Iout: 3 A
• High Internal Switching Frequency: 900 kHz
• Quiescent Current: < 6 μA in inhibit state

Pin configuration
2
Figure 2.
Table 2.
4/26
Pin n°
epad
1
2
3
4
5
6
7
8
Pin configuration
Pin connections (top view for PowerSO-8, bottom view for DFN8)
Pin description
INH (EN)
Symbol
V
AGND
PGND
SYNC
V
epad
DFN8 (4x4)
IN_SW
V
SW
IN_A
FB
Analog input supply voltage to be tied to V
Inhibit pin active low. Connect to V
Feedback voltage for connection to external voltage divider to set the V
from 0.8 V up to 0.85 * V
Analog ground
Synchronization and frequency select. Connect SYNC to GND for 900 kHz
operation, or to an external clock from 400 kHz to 1.2 MHz. (see
Sync
Power input supply voltage to be tied to V
Switching node to be connected to the inductor
Power ground
Exposed pad to be connected to ground
operation)
Doc ID 13844 Rev 4
IN_SW
Name and function
. (see
IN_A
Section 5.5: Output voltage
if not used
IN
IN
power supply source
supply source
PowerSO-8
Section 5.8.1:
selection)
ST1S10
OUT