PT6320 Datasheet, PDF (1/7 Pages) Texas Instruments – 3 AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATORS

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PT6320
Series
3 AMP ADJUSTABLE LOW VOLTAGE INPUT
INTEGRATED SWITCHING REGULATORS
SLTS065
(Revised 6/4/98)
• Low Voltage Input (7V)
• 90% Efficiency
• Adjustable Output Voltage
• Internal Short Circuit Protection
• Over-Temperature Protection
• On/Off Control (Ground Off)
The PT6320 series is a low volt-
age input (typically 7V) version of
Power Trends’ high-performance
3A, 12 pin SIP Integrated Switching
Regulators (ISRs). These ISRs are de-
signed with premium low threshold FETs
for those applications requiring very low
input/output voltage differentials such as
battery powered equipment. This high-
performance ISR family offers a unique
combination of features combining 90%
typical efficiency with open-collector on/
off control and adjustable output voltage.
Quiescent current in the shutdown mode
is less than 100µA.
Standard Application
V_OADJ
12
V_IN
2,3,4
PT6320
9,10,11
V_OUT
1
C1
INH
GND
5,6,7,8
+
C2
Q1
GND
C₁ = Optional 1µF ceramic
C₂ = Required 100µF electrolytic
Q₁ = NFET
Specifications
Pin-Out Information
Pin Function
1
Inhibit
(30V max)
2
Vin
3
Vin
4
Vin
5 GND
6 GND
7 GND
8 GND
9
Vout
10
Vout
11
Vout
12
Vout Adj
Ordering Information
PT6322! = +5 Volts
PT6323! = +3.3 Volts
Pkg Style 200
PT6320
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole A
Horizontal Surface Mount
C
Characteristics
(T_a=25°C unless noted)
Symbols
Conditions
Output Current
Io
Short Circuit Current
I_sc
Input Voltage Range
Vin
(Note: inhibit function cannot be used above 30V.)
Output Voltage Tolerance
∆V_o
Line Regulation
Load Regulation
Vo Ripple/Noise
Transient Response
with C_o = 100µF
Efficiency
Regline
Regload
V_n
t_tr
V_os
η
Switching Frequency
ƒ_o
Shutdown Current
I_sc
Quiescent Current
I_nl
Output Voltage
Vo
Adjustment Range
Over Vin range
V_in = V_o + 5V
0.1 ≤ Io ≤ 3.0 A
Vo = 3.3V
Vo = 5V
Over V_in Range, I_o = 3.0 A
T_a = 0°C to +60°C
Over Vin range
0.1 ≤ Io ≤ 3.0 A
Vin = Vin min, Io = 3.0A
50% load change
V_o over/undershoot
Vin=9V, Io = 0.5 A, Vo = 3.3V
Vin=9V, Io = 0.5 A, Vo = 5V
Over V_in and I_o ranges
Vin = 15V
I_o = 0A, V_in =10V
Below Vo
Above Vo
Absolute Maximum
Ta
Operating Temperature Range
Recommendated Operating
T_a
Temperature Range
Thermal Resistance
θ_ja
Free Air Convection, (40-60LFM)
At V_in = 24V, I_o = 2.5A
Free Air Convection (40-60LFM)
Storage Temperature
T_s
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3, 1 msec,
Half Sine, mounted to a fixture
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz,Soldered in a PC board
Weight
—
—
* ISR will operate to no load with reduced specifications.
** Input voltage cannot exceed 30V when the inhibit function is used. *** See Thermal Derating chart.
Note: The PT6320 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
PT6320 SERIES
Min
Typ
0.1*
—
—
5.0
7
—
7
—
—
±1.0
Max
3.0
—
26
30/38**
±2.0
—
±0.25
±0.5
—
±0.25
±0.5
—
±2
—
—
100
200
—
5.0
—
—
84
—
—
89
—
400
500
600
—
100
—
—
10
—
See Application Notes.
Units
A
Apk
V
V
%Vo
%Vo
%Vo
%Vo
µSec
%V_o
%
%
kHz
µA
mA
-40
—
+85
°C
-40
—
+80*** °C
—
30
—
°C/W
-40
—
+125
°C
—
500
—
G’s
—
10
—
G’s
—
6.5
—
grams
8
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.ti.com/powertrends