TB7004FL Datasheet, PDF (1/16 Pages) Toshiba Semiconductor – Synchronous Buck Converter Module for High-Current and Low-Voltage Applications

TOSHIBA Multi-Chip Module
TB7004FL
Synchronous Buck Converter Module
for High-Current and Low-Voltage Applications
TB7004FL
The TB7004FL is a synchronous buck converter (step-down
chopper) module. A DC-DC converter can be formed by combining
the TB7004FL with a PWM control IC, inductors, and input and
output capacitors.
Features
• Operating frequency: up to 1 MHz
• Incorporates 5-V regulator (output current: 10 mA.)
QFN56-P-0808-0.85A
• VCIN undervoltage lockout (UVLO)
In UVLO mode, the GH and GL outputs are set Low and
Weight: 0.19 g (typ.)
REG5V is set to 0 V. (The internal voltage regulator is shut down.)
• Thermal shutdown (TSD)
• Low-side MOSFET gate drive voltage: 5 to 12 V (max 16 V)
The low-side MOSFET gate drive voltage is supplied externally via VGIN.
• DISBL# is a digital input and can receive either a 12-V or 5-V logic High signal.
• DISBL#: H = Enables the internal circuitry.
L = Disables the internal circuitry and turns off both the high-side and low-side MOSFETs
(GH = Low, GL = Low). The internal 5-V regulator remains active.
• The PWM input provides for 3-state output control.
H: GH = H, GL = L
L: GH = L, GL = H
If the PWM input stays between the rising and falling threshold voltages for the 200-ns hold-off time, the
TB7004FL turns off both the high-side and low-side MOSFETs. Thereafter, setting the PWM input High causes
the TB7004FL to resume normal operation.
• The internal dead time control circuitry optimizes the switching of the high-side and low-side MOSFETs.
• Incorporates boot switch.
Charge switch for the bootstrap capacitor (The boot switch behaves like a Schottky barrier diode.)
Marking
#1 pin index
TOSHIBA
TB7004FL
MANUFACTURING CODE
MANUFACTURING CODE (10 or 11 characters)
Internal management code (may be null)
Production week (The first week of the year is 01, and the last week of the
year is 52 or 53.)
Production year (last digit of the year)
Assembly lot code (7 characters)
Care should be taken for static electricity when handling this product since it has a MOS structure.
1
2007-11-13