LV5803M-TE-L-E Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Step-down Switching Regulator

Ordering number : ENA1047
Bi-CMOS IC
LV5803M ^{Step-down Switching Regulator}
Overview
LV5803M is a 1ch step-down switching regulator. 0.2Ω FET is incorporated on the upper side to achieve high-efficiency
operation for large output current. Low-heat resistance and compact-package MFP8 employed. Current mode control type,
with superior load current response and easy phase compensation ON/OFF pin, allowing the standby mode with the current
drain of 80µA or less Pulse-by-pulse over-current protection and overheat protection available for protection of load
devices Soft start pin to be provided with a capacitance for soft start.
Functions
• 2A 1ch step-down switching regulator
• Wide input dynamic range (4.5 to 18V)
• High efficiency (90% IOUT = 1A, VIN = 12V, VO = 5V)
• Standby mode
• Over-current protection
• Thermal shutdown
• Reference voltage: 0.8V
• Fixed frequency: 330kHz
• Soft start
• Compact package: MFP8 (225mil)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum input VIN voltage
BOOT pin maximum voltage
SW pin maximum voltage
BOOT pin-SW pin maximum voltage
EN pin maximum voltage
FB, COMP, SS pin maximum voltage
Symbol
VIN max
VBT max
VSW max
VBS-SW max
VEN _max
Vfs max
Conditions
Ratings
Unit
20
V
25
V
VIN max
V
7
V
20
V
7
V
Allowable power dissipation
Pd max
With specified substrate *
1.15
W
Junction temperature
Tj max
150
°C
Operating temperature
Topr
-20 to 80
°C
Storage temperature
Tstg
-40 to 150
°C
* Specified substrate: 46.4mm × 31.8mm ×1.7mm, glass epoxy substrate
Note: Plan the maximum voltage while including coil and surge voltages, so that the maximum voltage is not exceeded even for an instant.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
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thereof. If you should intend to use our products for applications outside the standard applications of our
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customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
13108 MS PC 20080124-S00006 No.A1047-1/5