PT6601B
Texas Instruments PT6601B, PT6601D, PT6601E, PT6601G, PT6601P Datasheet
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Standard Application
C
1
= Required 330µF electrolytic
C
2
= Required 330µF electrolytic
Q
1
= NFET-or Open Collector Gate
PT6600
4,5,6
7,8,9,10
11,12,13
14
V
IN
COM COM
V
OUT
C
2
+
C
1
+
1
3
V
O
ADJ
STBY
Q
1
REMOTE SENSE
LOAD
Ordering Information
PT6601¨ = +3.3 Volts
PT6602¨ = +1.5 Volts
PT6603¨ = +2.5 Volts
PT6604¨ = +3.6 Volts
PT6605¨ = +1.2 Volts
PT6606¨ = +1.8 Volts
PT Series Suffix
(PT1234X)
Case/Pin Heat Heat Spreader
Configuration Spreader with Side Tabs
Vertical Through-Hole
PR
Horizontal Through-Hole
DG
Horizontal Surface Mount
EB
Note: Back surface
of product is
conducting metal.
Pin-Out Information
Pin Function
1 Remote Sense
2 Do not connect
3 STBY*-Standby
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
out
Adjust
9 AMP ADJUSTABLE
INTEGRATED SWITCHING REGULATOR
• Single Device 9A Output
• Input Voltage Range: 3.1V to 6.0V
• Adjustable Output Voltage
• 90% Efficiency
• Remote Sense Capability
• Standby Function
• Over-Temperature Protection
The PT6600 series is a new addi-
tion to the Power Trends’ high
performance family of 14-Pin SIP
(Single In-line Package) Integrated
Switching Regulators (ISRs), designed
for stand alone operation in applications
requiring as much as 9A of output cur-
rent (10A with a side heat tab).
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
For assistance or to order, call (800) 531-5782
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
6
PT6600 Series
Pkg Style 400
Specifications
Characteristics
PT6600 SERIES
(T
a
= 25°C unless noted) Symbols Conditions Min Typ Max Units
Output Current I
o
T
a
= 60°C, 200 LFM, pkg P 0.1* — 9.0** A
T
a
= 25°C, natural convection 0.1* — 7.0** A
Input Voltage Range V
in
0.1A ≤ I
o
≤ 8.0A V
o
= +2.5/3.3V 4.5 — 6.0
V
o
= +1.5V 3.1 — 6.0 V
V
o
= +3.6V 4.8 — 6.0
Output Voltage Tolerance ∆V
o
V
in
= +5V, I
o
= 8.0A
V
o-0.1 — Vo+0.1 V
T
a
= 0°C to 65°C
Output Voltage Adjust Range V
oadj
Pin 14 to V
o
or ground V
o
= +3.3V 2.25 — 4.20
V
in
min=+3.1V or V
o
+1.2V V
o
= +1.5V 1.27 — 2.65
V
(whichever is greater) V
o
= +2.5V 1.80 — 3.50
V
o
= +3.6V 2.50 — 4.30
Line Regulation Reg
line
4.5V ≤ V
in
≤ 6.0V, I
o
= 8.0A V
o
= +3.3V — ±7 ±17
3.1V ≤ V
in
≤ 6.0V, I
o
= 8.0A V
o
= +1.5V — ±3 ±8 mV
4.5V ≤ V
in
≤ 6.0V, I
o
= 8.0A V
o
= +2.5V — ±7 ±13
Load Regulation Reg
load
V
in
= +5V, 0.1 ≤ I
o
≤ 8.0A V
o
= +3.3V — ±17 ±33
V
o
= +1.5V — ±12 ±23 mV
V
o
= +2.5V — ±13 ±25
V
o
Ripple/Noise V
n
V
in
= 5V, I
o
= 8.0A — 50 — mVpp
Transient Response t
tr
I
o
step between 4.0A and 8.0A — 100 — µSec
with C
2
= 330µF V
os
V
o
over/undershoot — 150 — mV
Efficiency η V
in
= +5V, I
o
= 3.0A V
o
= +3.3/3.6V — 90 — %
V
o
= +1.5V — 76 — %
V
o
= +2.5V — 85 — %
V
in
= +5V, I
o
= 8.0A V
o
= +3.3/3.6V — 83 — %
V
o
= +1.5V — 68 — %
V
o
= +2.5V — 76 — %
* ISR will operate down to no load with reduced specifications.
** See SOA curves
Note:
The PT6600 Series requires two 330µF electrolytic capacitors (input and output) for proper operation in all applications.
See PT6000/7000 Series Capacitor application note.
†3.3V Input Bus Capable
†
†
†
Revised 7/15/98
Application Notes
Mechanical Outline
Product Selector Guide
Safe Operating Area Curves (@ V
in
=+5.0V) (See Note 2)
PT6601P (Vertical)
Ambient Temperature (°C)
PT6601R (Vertical with Side Tab)
Ambient Temperature (°C)
Ambient Temperature (°C)
Output Current (Amps)
Output Current (Amps)
Output Current (Amps)
PT6601D (Horizontal)
Airflow
Airflow
Airflow
Note 2: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
Recommended Maximum
Operating Temperature
Recommended Maximum
Operating Temperature
Recommended Maximum
Operating Temperature
CHARACTERISTIC DATA
For assistance or to order, call (800) 531-5782
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
7
3.3V Bus Products
DATA SHEETS
Note 1:Note 1:
Note 1:Note 1:
Note 1: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
PT6601, 3.3 VDC (See Note 1)
Efficiency vs Output Current
Ripple vs Output Current
Power Dissipation vs Output Current
Efficiency - %
Ripple-(mV)PD-(Watts)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
PT6600 Series
Specifications (continued)
Characteristics
PT6600 SERIES
(T
a
= 25°C unless noted) Symbols Conditions Min Typ Max Units
Switching Frequency ƒ
o
3.1V ≤ V
in
≤ 6.0V
475 600 725 kHz
0.1A ≤ I
o
≤ 8.0A
Absolute Maximum T
a
0—+85°C
Operating Temperature Range
Recommended Operating T
a
Free Air Convection (40-60 LFM)
0 — 65** °C
Temperature Range Over V
in
and
I
o
ranges with heat tab
Thermal Resistance θ
ja
Free Air Convection (40-60 LFM) — 25 — °C/W
Storage Temperature T
s
— -40 — +125 °C
Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s
Mechanical Vibration — Per Mil-STD-883D, Method 2007.2,
— 7.5 — G’s
20-2000 Hz, soldered in a PC board
Weight — — — 14 — grams
** See SOA curves
Note:
The PT6600 Series requires two 330µF electrolytic capacitors (input and output) for proper operation in all applications.
40
50
60
70
80
90
100
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4.5V
5.0V
5.5V
Vin
0
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5.0V
4.5V
Vin
0
1
2
3
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5
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7
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9
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5.5V
5.0V
4.5V
Vin
P
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90
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300 LFM
150 LFM
60 LF M
Nat Conv
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300 LFM
150 LFM
60 LF M
Nat Co n v.
20
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300 LFM
150 LFM
60 LFM
Nat Conv
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