PT6121 Datasheet: 1AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR





PT6121 1AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR Datasheet

Part Number PT6121
Description 1AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR
Manufacture Power Trend
Total Page 7 Pages
PDF Download Download PT6121 Datasheet PDF

Features: For assistance or to order, call (800) 5 31-5782 PT6120 Series 1 AMP ADJUSTAB LE LOW VOLTAGE INPUT INTEGRATED SWITCHI NG REGULATOR SLTS081 (Revised 6/4/98) • Low Voltage Input (7V) • 89% Eff iciency • Adjustable Output Voltage Internal Short Circuit Protection Over-Temperature Protection • On/Of f Control (Ground Off) The PT6120 serie s is a low voltage input (typically 7V) version of Power Trends’ high-perfor mance 1A, 12 pin SIP Integrated Switchi ng Regulators (ISRs). These ISRs are d esigned with premium low threshold FETs for those applications requiring very low input/output voltage differentials such as battery powered equipment. This highperformance ISR family offers a un ique combination of features combining 89% typical efficiency with open-collec tor on/ off control and adjustable outp ut voltage. Quiescent current in the sh utdown mode is less than 100µA. Stand ard Application VOADJ 12 PT6120VIN 2,3 ,4 9,10,11 VOUT 1 C1 INH GND 5,6,7,8 + C2 Q1 GND C1 = Optional 1µF ce.

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For assistance or to order, call (800) 531-5782
PT6120
Series
1 AMP ADJUSTABLE LOW VOLTAGE INPUT
INTEGRATED SWITCHING REGULATOR
SLTS081
(Revised 6/4/98)
Low Voltage Input (7V)
89% Efficiency
Adjustable Output Voltage
Internal Short Circuit Protection
Over-Temperature Protection
On/Off Control (Ground Off)
The PT6120 series is a low volt-
age input (typically 7V) version of
Power Trends’ high-performance
1A, 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 89%
typical efficiency with open-collector on/
off control and adjustable output voltage.
Quiescent current in the shutdown mode
is less than 100µA.
Standard Application
VOADJ
12
PT6120VIN 2,3,4
9,10,11
VOUT
1
C1
INH
GND
5,6,7,8
+
C2
Q1
GND
C1 = Optional 1µF ceramic
Q1 = NFET
C2 = Required 100µF electrolytic
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
PT6121! = +5 Volts
PT6122! = +3.3 Volts
Pkg Style 200
PT6120
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
Characteristics
(Ta =25°C unless noted)
Symbols
Conditions
PT6120 SERIES
Min Typ
Max
Output Current
Io
Short Circuit Current
Isc
Input Voltage Range
Vin
(Note: inhibit function cannot be used with Vin above 30V)
Over Vin range
Vin = Vin min
0.1 Io 1.0 A
Vo = 3.3V
Vo = 5V
0.1* —
— 3.5
7—
7—
1.0
26
30/38**
Output Voltage Tolerance
Line Regulation
Load Regulation
Vo Ripple/Noise
Transient Response
with Co = 100µF
Efficiency
Switching Frequency
Shutdown Current
Quiescent Current
Output Voltage
Adjustment Range
Absolute Maximum
Operating Temperature Range
Vo
Regline
Regload
Vn
ttr
Vos
η
ƒo
Isc
Inl
Vo
Ta
Over Vin Range, Io = 1.0 A
Ta = 0°C to +60°C
Over Vin range
0.1 Io 1.0 A
Vin=Vin min, Io=1.0 A
50% load change
Vo over/undershoot
Vin=9V, Io=0.5A, Vo=3.3V
Vin=9V, Io=0.5A, Vo=5V
Over Vin and Io ranges
Vin = 15V
Io = 0A, Vin =10V
Below Vo
Above Vo
— ±1.0 ±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.
-40 —
+85
Recommended Operating
Temperature Range
Thermal Resistance
Storage Temperature
Mechanical Shock
Ta
θja
Ts
Free Air Convection,
(40-60LFM)
Free Air Convection
(40-60LFM)
Vo= 3.3V
Vo= 5V
Vo = 3.3V
Vo = 5V
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
-40 —
-40 —
+85***
+85***
— 50 —
— 40 —
-40 —
+125
— 500
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2
20-2000 Hz, Soldered in a PC board
— 10
Weight
— 5.0 —
* ISR will operate down to no load with reduced specifications.
** Input voltage cannot exceed 30V when the inhibit function is used. ***See Thermal Derating chart.
Note: The PT6120 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
Units
A
Apk
V
V
%Vo
%Vo
%Vo
%Vo
µSec
%Vo
%
%
kHz
µA
mA
°C
°C
°C/W
°C
G’s
G’s
grams
4 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends

                    






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