Document
Voltage Regulators
AN7700, AN7700F, AN7700SP Series
Low-dropout three-pin voltage regulator 1.2-A type
s Overview
The AN7700, AN7700F, and AN7700SP series are stabilized constant-voltage power supplies with small difference between I/O voltages (0.5 V typ.). They are suitable for low-voltage, battery-driven equipment, and home appliances and industrial equipment with great fluctuation of the supply voltage. The output voltage ranges: For AN7700, AN7700F 3 V, 4 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V, 18 V, 20 V, and 24 V For AN7700SP 3.3 V, 3.5 V, 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, and 15 V AN7700 series
(10.35) 10.0±0.3 φ3.7±0.1 4.5±0.2 1.4±0.1
2.9±0.1 15.4±0.2
Unit: mm
1.4 –0.05
+0.15 0.8 –0.05
(13.6)
+0.15
(4.5)
2.54 2.54
0.45 –0.0 (2.0) (2.5)
+0.2
10.5±0.3
TO-220 Package (HSIP003-P-0000)
s Features
• Minimum I/O voltage difference: 0.5 V (typ.) • On-chip overcurrent limiter • On-chip thermal protection circuit • On-chip inrush current protection circuit at the time of input voltage start-up • On-chip input short-circuit protection circuit (When the input pin is short-circuited to the ground, the circuit between pins 1 and 3 is shut down to prevent current flow.)
AN7700F series
10.5±0.3 (4.3) φ5.3 3.1±0.1
(1.73)
16.7±0.3
17.0±0.25
13.6±0.25
4.5±0.25
s Applications
• Power supply equipment
2.54 1 2
2.0 0.4+0.1 (0.4) –0.05 ±0.25 0.8±0.2 2.5±0.25 1.4±0.2 4.5±0.3 3
TO-220F Package (HSIP003-P-0000A)
AN7700SP series
6.50±0.10 5.30±0.10 4.35±0.20 3.00±0.20 1.80±0.30 0.20max. 2.50±0.20 5.50±0.20 7.30±0.10
Unit: mm
1.00±0.20
9.80±0.10
8.7±0.3
0.80max. 0.55±0.15 0.10±0.05 2.30±0.10 1.00±0.30
2.30 4.60±0.10
0.75±0.10
1
2
3
U-type Package
3.8 4.2±0.25 ±0.25
2.77±0.3
12.5±0.2 17.0±0.2 26.1±0.2 29.0±0.3
8.7±0.2
Unit: mm
1
AN7700, AN7700F, AN7700SP Series
s Block Diagram
Voltage Regulators
Input short-circuit protection
Output stage
Voltage reference
Overcurrent limiter Output driver Inrush current protection R1 Thermal protection Error amplifier R2
Starter
VREF
1
2
s Pin Descriptions
Pin No. 1 2 3 Description Input pin (In) Ground pin (COM) Output pin (Out)
s Absolute Maximum Ratings at Ta = 25°C
Parameter Supply voltage Supply current
*2 *3 *4
Symbol VIN IIN
Rating 30 2.4 15 10.25 5.0 −30 to +85 −55 to +150
3
Unit V A W
Power dissipation
AN7700 series AN7700F series AN7700SP series
*1
PD
Operating ambient temperature Storage temperature
*1
Topr Tstg
°C °C
Note) *1: Expect for the operating ambient temperature, and storage temperature, all ratings are for Ta = 25°C. *2: At the application of VIN = 30 V, the overvoltage protection may be operated by the ASO protection circuit, leading to the output shut down. *3: The current value does not exceed this criterion because of the on-chip current limiter. *4: The internal circuit shuts off the output when Tj ≥ 150°C (designed value). The relationship between the IC power dissipation and ambient temperature shall conform to the derating curve (s C.