tb7102af TOSHIBA Semiconductor CORPORATION, tb7102af Datasheet - Page 2

• Manufacturer Part Number: tb7102af
• Description: Buck Dc-dc Converter Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Ordering Information
Block Diagram
Pin Description
V
TB7102AF (TE85L, F)
EN
FB
Pin No.
1
2
3
4
5
6
7
8
Part Number
lockout & soft-start
reference voltage
0.8 V (typ.)
Undervoltage
Symbol
PGND
SGND
Error amplifier
N.C.
N.C.
V
V
EN
L
compensation
FB
IN
X
Oscillator
Slope
Embossed tape (3000 units per reel)
Ground for the output section
Input pin
This pin is placed in the standby state if V
Enable pin
When EN ≥ 1.5 V (@V
operation of the output section.
Ground for the control logic
No-connect
No-connect
Feedback pin
This input is fed into an internal error amplifier with a reference voltage of 0.8 V (typ.).
Switch pin
This output is connected to the high-side P-channel MOSFETs and low-side N-channel MOSFET.
V
compensation
COMP
Phase
PWM comparator
Shipping
IN
= 5 V), the control logic is allowed to operate and thus enable the switching
Control logic
2
shutdown
Thermal
EN
Description
= low. Standby current is 1 μA or less.
Current detection
Driver
Driver
SGND
V
IN
TB7102AF
2008-05-22
L
PGND
X