L5987 STMicroelectronics, L5987 Datasheet - Page 7

• Manufacturer Part Number: L5987
• Description: IC REG STEPDOWN 3A 8VFQFPN
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5987

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 V ~ 18 V
• Current - Output: 3A
• Frequency - Switching: 250kHz
• Voltage - Input: 2.9 V ~ 18 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-VFQFN, Exposed Pad
• Output Voltage: 0.6 V
• Output Current: 3 A
• Output Power: 1.5 W
• Input Voltage: 2.9 V to 18 V
• Switching Frequency: 250 KHz
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• Low Dropout Operation: 100 % duty cycle
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L5987
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 (continued)
Parameter
J
from -40 to +125 °C. Specification in the -40 to +125 °C temperature range are
Doc ID 14972 Rev 3
V
V
V
V
V
V
V
(2)
V
I
SYNCH floating
SOURCE
FB
FB
FB
FB
COMP
FB
COMP
SYNCH
< 0.6 V
> 0.6 V
= 0 V to 0.8 V
= 0.5 V,
= 0.7 V,
Test condition
= 1 V
= 1 V
= 2.9 V
= 4.5 mA
Min
2.0
70
3
2
Electrical characteristics
Values
Typ
100
110
150
0.7
20
25
30
1
1
Max
0.1
3.3
0.9
1
Unit
mA
mA
mA
μA
dB
μA
ns
°C
V
V
V
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