TB7101AF(T5L1.2,F)/(T5L1.5,F)/(T5L1.8,F)/(T5L2.5,F)/(T5L3.3,F)

2008-05-22

2

Ordering Information

Part Number

Shipping

TB7101AF (T5L*.*, F)

Embossed tape (3000 units per reel)

Block Diagram

Pin Description

Pin No.

Symbol

Description

1

PGND

Ground for the output section

2

Input pin

3

EN

Enable pin

When EN

operation of the output section.

4

SGND

Ground for the control logic

5

N.C.

No-connect

6

N.C.

No-connect

7

Feedback pin

Output voltage is set to 1.2 V/1.5 V/1.8 V/2.5 V/3.3 V (typ.) internally.

8

Switch pin

This output is connected to the high-side P-channel MOSFETs and low-side N-channel MOSFET.

0.8V (typ.)

EN

Control logic

Phase

compensation

Thermal

shutdown

Undervoltage

lockout & soft-start

reference voltage

Error amplifier

PWM comparator

Slope

compensation

Oscillator

Driver

Current detection

Driver

PGND

SGND