TCV7105F Datasheet, PDF (1/16 Pages) Toshiba Semiconductor – Buck DC-DC Converter IC

TOSHIBA CMOS Integrated Circuit Silicon Monolithic
TCV7105F
TCV7105F
Buck DC-DC Converter IC
The TCV7105F is a single-chip buck DC-DC converter IC.
The TCV7105F contains high-speed and low-on-resistance power
MOSFETs for the main switch and synchronous rectifier to achieve
high efficiency.
Features
• Enables up to 2.5 A of load current (I_OUT) with a minimum of
external components.
HSON8-P-0505-1.27
• High efficiency: η = 95% (typ.)
(@V_IN = 5 V, V_OUT = 3.3 V, I_OUT = 0.7 A)
Weight: 0.068 g (typ.)
• Operating voltage range: V_IN = 2.7 to 5.5 V
• Low ON-resistance: R_{DS (ON)} = 0.18 Ω (high-side) / 0.12 Ω (low-side) typical (@V_IN = 5 V, T_j = 25°C)
• High oscillation frequency: f_OSC = 1500 kHz (typ.)
• Feedback voltage: V_{FB =} 0.8 V ± 1% (@T_j = 0 to 85°C)
• Uses internal phase compensation to achieve high efficiency with a minimum of external components.
• Allows the use of a small surface-mount ceramic capacitor as an output filter capacitor.
• Housed in a small surface-mount package (SOP Advance) with a low thermal resistance.
• Soft-start time adjustable by an external capacitor
Part Marking
TCV
7105F
Pin Assignment
Part Number (or abbreviation code)
L_X EN SS V_FB
8
7
6
5
Lot No.
The dot (•) on the top surface indicates pin 1.
1
2
3
4
PGND V_IN1 V_IN2 SGND
*: The lot number consists of three digits. The first digit represents the last digit of the year of manufacture, and the
following two digits indicates the week of manufacture between 01 and either 52 or 53.
Manufacturing week code
(The first week of the year is 01; the last week is 52 or 53.)
Manufacturing year code (last digit of the year of manufacture)
This product has a MOS structure and is sensitive to electrostatic discharge. Handle with care.
The product(s) in this document (“Product”) contain functions intended to protect the Product from temporary
small overloads such as minor short-term overcurrent, or overheating. The protective functions do not necessarily
protect Product under all circumstances. When incorporating Product into your system, please design the system (1)
to avoid such overloads upon the Product, and (2) to shut down or otherwise relieve the Product of such overload
conditions immediately upon occurrence. For details, please refer to the notes appearing below in this document and
other documents referenced in this document.
1
2011-05-07