TB7106F Datasheet, PDF (1/16 Pages) Toshiba Semiconductor – Buck DC-DC Converter IC

TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB7106F
Buck DC-DC Converter IC
TB7106F
The TB7106F is a single-chip buck DC-DC converter IC that utilizing a
chopper circuit. The TB7106F adopts bootstrap system and contains
high-speed and low-on-resistance N-channel MOSFETs for the high side
main switch to achieve high efficiency.
Features
• Enables up to 3 A of load current (I_OUT) with a minimum of external
components.
• High efficiency (η = 88% typ.)
HSON8-P-0505-1.27
Weight: 0.068 g (typ.)
(@V_IN = 12 V, V_OUT = 3.3 V and I_OUT = 1A)
• Operating voltage range: V_{IN =} 4.5 to 20 V
• Low ON-resistance: R_{DS (ON)} = 0.18 Ω (high-side) typical (@V_IN = 12 V, Tj = 25°C)
• Oscillation frequency: f_OSC = 380 kHz (typ.)
• Reference voltage: VFB = 0.8 V ±2.25%(@ Tj = 25 ℃)
• Because of an external phase compensation element, the optimal phase compensation according to the output
filter capacitor can be realized.
• 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 low thermal resistance.
• Soft-start time adjustable by an external capacitor
Part Marking
TB
7106F
Part Number (or abbreviation code)
Lot No.
Pin Assignment
SS EN COMP V_FB
8
7
6
5
The dot (•) on the top surface indicates pin 1.
12
BOOT V_IN
3
4
L_X GND
*: 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
to avoid such overloads upon the Product, and 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.
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2011-11-05