LD3985XX28 STMicroelectronics, LD3985XX28 Datasheet - Page 4

• Manufacturer Part Number: LD3985XX28
• Description: Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible
• Manufacturer: STMicroelectronics

Specifications of LD3985XX28

• Wide Range Of Output Voltage: 1.22 V; 1.8 V; 2.5 V; 2.6 V; 2.7 V; 2.8 V; 2.9 V; 3 V; 3.3 V; 4.7 V
• Fast Turn-on Time: typ. 200µs
• Temperature Range: -40°C to 125 °C

Pin configuration
2
Figure 2.
Table 2.
4/23
TSOT23-5L
SOT23-5L/
Pin n° for
1
2
3
4
5
Pin configuration
Pin connections (top view for SOT and TSOT, top through view for Flip-chip)
Pin description
Pin n° for
Flip-chip
SOT23-5L/TSOT23-5L
4
2
1
5
3
BYPASS
Symbol
GND
V
V
V
INH
O
I
Input voltage of the LDO
Common ground
Inhibit input voltage: ON MODE when V
≤ 0.4 V (Do not leave floating, not internally pulled down/up)
Bypass pin: connect an external capacitor (usually 10 nF) to minimize
noise voltage
Output voltage of the LDO
Doc ID 9587 Rev 14
Name and function
INH
Flip-chip
≥ 1.2 V, OFF MODE when V
LD3985xx
INH