For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
C
1
= Required 330µF electrolytic
(1)
C
2
= Required 330µF electrolytic
(1)
Q
1
= Optional N-Channel MOSFET
6 A 12-V Input
Integrated Switching Regulator
PT6620 Series
PT6620
4,5,6
7,8,9,10
11,12,13
V
IN
COM
COM
V
OUT
C
2
+
C
1
+
1
3
STBY
Q
1
REMOTE SENSE
LOAD
Ordering Information
PT6621¨ =3.3 Volts
PT6622¨ =1.5 Volts
PT6623¨ =2.5 Volts
PT6624¨ =3.6 Volts
PT6625¨ =5.0 Volts
PT6626¨ =9.0 Volts
PT6627¨ =1.8 Volts
Features
• Single Device: 6-A Output
• Input Voltage Range: 9 V to 16 V
• Adjustable Output Voltage
• 83 % Efficiency
• Remote Sense Capability
• Standby Function
• Over-Temperature Protection
• 16-pin Mount Option
(Suffixes L, M, Q, & F)
Pin Configuration
Pin Function
1V
o
Sense
2 Do Not Connect
3 STBY*
4V
in
5V
in
6V
in
7 GND
8 GND
9 GND
10 GND
11 V
out
12 V
out
13 V
out
14 V
o
Adjust
SLTS036C - FEBRUARY 1999 - REVISED JUNE 2003
PT Series Suffix
(PT1234x)
Case/Pin Order Package
Configuration Suffix Code *
Vertical P (EED)
Horiz D (EEA)
SMD E (EEC)
Horiz, 2-Pin Tab M (EEM)
SMD, 2-Pin Tab L (EEL)
Horiz, 2-Pin Ext Tab Q (EEQ)
SMD, 2-Pin Ext Tab F (EEF)
Vertical, Side Tab R (EEE)
Horiz, Side Tab G (EEG)
SMD, Side Tab B (EEK)
* Previously known as package styles 400/410.
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Description
The PT6620 series is a line of 12-V
input Integrated Switching Regulators
(ISRs). These regulators are designed
for stand-alone operation in applications
requiring as much as 6 A of output
current. The PT6620 series is pack-
aged in a 14-Pin SIP (Single In-line
Package), which is available in either
a vertical or horizontal configura-
tions, including surface mount.
Specifications Unless otherwise stated, T
a
=25 °C, C
2
=330 µF, V
in
=12 V, I
o
=I
o
max
PT6620 SERIES
Characteristics Symbols Conditions Min Typ Max Units
Output Current I
o
T
a
= 60 °C, 200 LFM, pkg P 0.1
(2)
—6
A
T
a
= 25 °C, natural convection 0.1
(2)
—6
Input Voltage Range V
in
0.1 A ≤ I
o
≤ 6 A V
o
≤ 5 V 9 — 16
V
6 V ≤V
o
≤9 V V
o
+ 3 — 16
Output Voltage Tolerance ∆V
o
T
a
= 0 to 60 °C
V
o
– 0.1 — V
o
+ 0.1 V
Output Voltage Adjust Range V
o
adj Pin 14 to V
o
or ground V
o
= 3.3 V 2.3 — 4.5
V
o
= 1.5 V 1.4 — 2.6
V
o
= 2.5 V 1.9 — 3.7 V
V
o
= 3.6 V 2.5 — 4.8
V
o
= 5 V 2.9 — 6.5
V
o
= 9 V 5.2 — 10
Line Regulation Reg
line
V
in
(min) ≤V
in
≤V
in
(max) — ±0.5 ±1 %V
o
Load Regulation Reg
load
0.1 ≤ I
o
≤6 A — ±0.5 ±1 %V
o
V
o
Ripple (pk-pk) V
r
20 MHz bandwidth, V
o
< 6 V — 50 — mVpp
V
o
> 6 V — 1 — %V
o
Transient Response 1 A/µs load step, 50 to 100% I
o
max
t
tr
Recovery time — 100 — µSec
∆V
tr
V
o
over/undershoot — 150 — mV
Efficiency
η I
o
=3 A V
o
=3.3/3.6 V — 84 —
V
o
= .5 V — 68 —
V
o
=2.5 V — 76 — %
V
o
=5.0 V — 86 —
V
o
=9.0 V — 93 —
I
o
=6 A V
o
=3.3/3.6 V — 83 —
V
o
=1.5 V — 66 —
V
o
=2.5 V — 75 — %
V
o
=5.0 V — 85 —
V
o
=9.0 V — 92 —
Switching Frequency ƒ
s
V
in
(min) ≤V
in
≤V
in
(max) PT6622 500 550 600 kHz
0.1 A ≤ I
o
≤ 6 A Except PT6622 550 650 750 kHz
Continued
