L5985TR STMicroelectronics, L5985TR Datasheet - Page 6

• Manufacturer Part Number: L5985TR
• Description: IC REG SW 2A STEP DOWN 8-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5985TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 18 V
• Current - Output: 2A
• Frequency - Switching: 250kHz ~ 1MHz
• Voltage - Input: 2.9 ~ 18 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-VFQFN, 8-VFQFPN
• Power - Output: 1.5W
• Output Voltage: 3 V
• Output Current: 2 A
• Input Voltage: 2.9 V to 18 V
• Switching Frequency: 220 KHz to 275 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• For Use With: 497-6387 - BOARD EVAL FOR L5985
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6861-2; L5985TR

Electrical characteristics
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Table 4.
1. Specification referred to T
2. Guaranteed by design.
Error amplifier
Synchronization function
Protection
I
O SOURCE
Symbol
I
I
T
FBDISC
assured by design, characterization and statistical correlation.
O SINK
V
V
SHDN
I
G
FB
CH
CL
V
High level output voltage
Low level output voltage
Bias source current
Source COMP pin
Sink COMP pin
Open loop voltage gain
High input voltage
Low input voltage
Slave sink current
Master output amplitude
Output pulse width
Input pulse width
FB disconnection source
current
Thermal shutdown
Hysteresis
Electrical characteristics
Parameter
J
from -40 to +125 °C. Specification in the -40 to +125 °C temperature range are
Doc ID 13006 Rev 5
V
V
V
V
V
V
(2)
V
I
SYNCH floating
SOURCE
FB
FB
FB
FB
FB
COMP
SYNCH
< 0.6 V
> 0.6 V
= 0 V to 0.8 V
= 0.5 V, V
= 0.7 V,
Test condition
= 1 V
= 2.9 V
= 4.5 mA
COMP
= 1 V
Min
2.0
70
3
2
Values
Typ
100
110
150
0.7
20
25
30
1
1
Max
0.1
3.3
0.9
1
L5985
Unit
mA
mA
mA
μA
dB
μA
°C
ns
V
V
V