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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
PC2933A, 2905A
THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR
DESCRIPTION
The PC2933A, 2905A of low dropout voltage three terminal positive regulators is constructed with PNP output transistor. The PC2933A, 2905A feature the ability to source 1 A of output current with a low dropout voltage of typically 0.7 V. The power dissipation of the PC2933A, 2905A can be drastically reduced compared with the conventional three terminal positive voltage regulators that is constructed with NPN output transistor. Also, this series corresponds to the low voltage output (3 V, 3.3 V) which is not in the conventional low dropout regulators ( PC2400A series).
FEATURES
* Output current in excess of 1.0 A * Low dropout voltage VDIF = 0.7 V TYP. (at IO = 1 A) * On-chip overcurrent and thermal protection circuit * On-chip output transistor safe area protection circuit
PIN CONFIGURATION (Marking Side)
PC2933AHF, 2905AHF : MP-45G PC2933AHB, 2905AHB : MP-3 PC2933AT, 2905AT : MP-3Z 4
1
2
3 1: INPUT 2: GND 3: OUTPUT
1
2
3
1: INPUT 2: GND 3: OUTPUT 4: GND (Fin)
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. G15374EJ2V0DS00 (2nd edition) Date Published September 2001 NS CP(K) Printed in Japan
The mark 5 shows major revised points.
(c)
2001
PC2933A, 2905A
BLOCK DIAGRAM
INPUT
Safe operating area protection Start-up circuit Reference voltage
Error amp.
Drive circuit
Saturation protection OUTPUT
Thermal shut down Over current protection GND
2
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
ORDERING INFORMATION
Part Number Package MP-45G (Isolated TO-220) Output Voltage 3.3 V Marking 2933A Package Type * Packed in envelope
PC2933AHF
PC2933AHB PC2933AT PC2933AT-E1
MP-3 (SC-64) MP-3Z (SC-63) MP-3Z (SC-63)
3.3 V 3.3 V 3.3 V
2933A 2933A 2933A
* Packed in envelope * Packed in envelope * 16 mm wide embossed taping * Pin 1 on drawout side * 2000 pcs/reel
PC2933AT -E2
MP-3Z (SC-63)
3.3 V
2933A
* 16 mm width embossed taping * Pin 1 at takeup side * 2000 pcs/reel
PC2933AT -T1
MP-3Z (SC-63)
3.3 V
2933A
* 32 mm wide adhesive taping * Pin 1 at drawout side * 1500 pcs/reel
PC2933AT -T2
MP-3Z (SC-63)
3.3 V
2933A
* 32 mm wide adhesive taping * Pin 1 at takeup side * 1500 pcs/reel
PC2905AHF
MP-45G (Isolated TO-220)
5.0 V
2905A
* Packed in envelope
PC2905AHB PC2905AT PC2905AT-E1
MP-3 (SC-64) MP-3Z (SC-63) MP-3Z (SC-63)
5.0 V 5.0 V 5.0 V
2905A 2905A 2905A
* Packed in envelope * Packed in envelope * 16 mm wide embossed taping * Pin 1 at drawout side * 2000 pcs/reel
PC2905AT-E2
MP-3Z (SC-63)
5.0 V
2905A
* 16 mm wide embossed taping * Pin 1 at takeup side * 2000 pcs/reel
PC2905AT-T1
MP-3Z (SC-63)
5.0 V
2905A
* 32 mm wide adhesive taping * Pin 1 at drawout side * 1500 pcs/reel
PC2905AT-T2
MP-3Z (SC-63)
5.0 V
2905A
* 32 mm wide adhesive taping * Pin 1 at takeup side * 1500 pcs/reel
Data Sheet G15374EJ2V0DS
3
PC2933A, 2905A
ABSOLUTE MAXIMUM RATINGS (TA = 25C unless otherwise specified)
Rating Parameter Symbol
PC2933AHF,
2905AHF
PC2933AHB, 2905AHB PC2933AT, 2905AT
Unit
Input Voltage Internal Power Dissipation
Note
VIN (TC = 25C) PT TA TJ Tstg Rth(J-C) Rth(J-A) 7 65 15
20 10 -30 to +85 -30 to +150 -55 to +150 12.5 125
V W C C C C/W C/W
Operating Ambient Temperature Operating Junction Temperature Storage Temperature Thermal Resistance (junction to case) Thermal Resistance (junction to ambient)
Note Internally limited. When the operating junction temperature rises over 150C, the internal circuit shuts down the output voltage. Caution If the absolute maximum rating of any of the above parameters is exceeded even momentarily, the quality of the product may be degraded. In other words, absolute maximum ratings specify the values exceeding which the product may be physically damaged. Be sure to use the product with these ratings never exceeded.
STANDARD CONNECTION
D1
INPUT CIN
PC2933A, 2905A + COUT
OUTPUT D2
CIN: 0.1 F or higher. Set this value according to the length of the line between the regulator and INPUT pin. Be sure to connect CIN to prevent parasitic oscillation. Use of a film capacitor or other capacitor with excellent voltage and temperature characteristics is recommended. If using a laminated ceramic capacitor, it is necessary to ensure that CIN is 0.1 F or higher for the voltage and temperature range to be used. 5 COUT: 47 F or higher. Be sure to connect COUT to prevent oscillation and improve excessive load regulation. Place CIN and COUT as close as possible to the IC pins (within 2 cm). Also, use an electrolytic capacitor with low impedance characteristics if considering use at sub-zero temperatures. D1: If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode. D2: If the OUTPUT pin has a lower voltage than the GND pin, connect a Schottky barrier diode. Caution Make sure that no voltage is applied to the OUTPUT pin from external. 4
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
RECOMMENDED OPERATING CONDITIONS
Parameter Input Voltage Symbol VIN Type Number MIN. 4.3 6 0 -30 -30 TYP. MAX. 16 16 1.0 +85 +125 A C C Unit V
PC2933A PC2905A
Output Current
IO
All All All
Operating Ambient Temperature TA Operating Junction Temperature TJ
ELECTRICAL CHARACTERISTICS
PC2933A (TJ = 25C, VIN = 5 V, IO = 500 mA, CIN = 0.22 F, COUT = 47 F, unless otherwise specified)
Parameter Output Voltage Symbol VO 0C TJ 125C, 4.3 V VIN 16 V, 0 A IO 500 mA 0C TJ 125C, 0 A IO 1 A Line Regulation Load Regulation Quiescent Current REGIN REGL IBIAS 4.3 V VIN 16 V 0 A IO 1 A IO = 0 A IO = 1 A Startup Quiescent Current IBIAS (s) VIN = 3.1 V, IO = 0 A VIN = 3.1 V, IO = 1 A Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current 12 23 2.0 20 10 33 33 3.0 40 30 80 3.0 55 48 64 0.7 1.2 1.6 1.2 1.0 1.3 1.4 1.7 -0.4 3.0 2.8 mV/C A 1.0 3.0 15 mA mA mA mV Conditions MIN. 3.18 3.14 TYP. 3.3 MAX. 3.42 3.46 Unit V
IBIAS
Vn R*R VDIF IOpeak
0C TJ 125C, 4.3 V VIN 16 V 10 Hz f 100 kHz 4.3 V VIN 16 V, f = 120 Hz 0C TJ 125C, IO = 1 A VIN = 4.5 V VIN = 16 V
Vr.m.s.
dB V A
Peak Output Current
IOpeak
VIN = 4.5 V VIN = 16 V
Temperature Coefficient of Output Voltage
VO /T
0C TJ 125C, IO = 5 mA
Data Sheet G15374EJ2V0DS
5
PC2933A, 2905A
PC2905A (TJ = 25C, VIN = 8 V, IO = 500 mA, CIN = 0.22 F, COUT = 47 F, unless otherwise specified)
Parameter Output Voltage Symbol VO 0C TJ 125C, 6 V VIN 16 V, 0 A IO 500 mA 0C TJ 125C, 0 A IO 1 A Line Regulation Load Regulation Quiescent Current REGIN REGL IBIAS 6 V VIN 16 V 0 A IO 1 A IO = 0 A IO = 1 A Startup Quiescent Current IBIAS (s) VIN = 4.5 V, IO = 0 A VIN = 4.5 V, IO = 1 A Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current 23 28 2.2 28 10 50 50 3.5 50 30 50 2.9 90 46 61 0.7 1.15 1.8 1.1 1.1 1.4 1.5 2.0 0.6 3.0 2.8 mV/C A 1.0 3.0 15 mA mA mV mV mA Conditions MIN. 4.83 4.75 TYP. 5.0 MAX. 5.18 5.25 Unit V
IBIAS
Vn R*R VDIF IOpeak
0C TJ 125C, 6 V VIN 16 V 10 Hz f 100 kHz f = 120 Hz, 6 V VIN 16 V 0C TJ 125C, IO = 1 A VIN = 6.5 V VIN = 16 V
Vr.m.s.
dB V A
Peak Output Current
IOpeak
VIN = 6.5 V VIN = 16 V
Temperature Coefficient of Output Voltage
VO /T
0C TJ 125C, IO = 5 mA
6
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
TYPICAL CHARACTERISTICS (Reference Values)
Pd vs.TA 20
Pd - Total Power Dissipation - W
VO - Output Voltage Deviation - mV
Solid line : PC2933AHF, 2905AHF Broken line : PC2933AHB, 2905AHB PC2933AT, 2905AT
V O vs.TJ 300 200 100 0 -100 -200 -300 I O = 5 mA -400 -50
15
With infinite heatsink
PC2905A
10
PC2933A
5
Without heatsink
1.92 1.0 0
0
50 85 100 150 TA - Operating Ambient Temperature - C
0
50
100
150
TJ - Operating Junction Temperature - C
VO vs.VIN 4.0 3.5
O
PC2933A
VO vs. VIN 8
TJ = 25C
PC2905A TJ = 25C
I O = 1.0 A = 0.5 A
7 I O = 1.0 A
VO - Output Voltage - V
VO - Output Voltage - V
3.0 I O = 5 mA 2.5 2.0 1.5 1.0 0.5 0 0 1 2 3 4 5 6 7 8 VIN - Input Voltage - V
6
O
= 0.5 A
5 I O = 5 mA 4 3 2 1 0 0 1 2 3 4 5 6 7 8
VIN - Input Voltage - V
BIAS
I BIAS(s) ) vs.VIN
PC2933A T = 25C
BIAS
IBIAS(s)) vs.VIN
PC2905A T = 25C
50
50
Quiescent Current - mA
Quiescent Current - mA
40
40
30
30
20 IO= 1 A 10
O=
20
O=
IO= 1 A 0.5 A
BIAS
BIAS
0.5 A IO= 0 A
10 IO= 0 A
0 0 2 4 6 8 10 12 14 16 18 20
0
2
4
6
8
10
12
14
16
18
20
VIN - Input Voltage - V
VIN - Input Voltage - V
Data Sheet G15374EJ2V0DS
7
PC2933A, 2905A
VDIF vs.TJ 1.0 PC2905A
3
IO peak vs. VDIF m PC2933A
0.8
IO peak - Peak Output Current - A
VDIF - Dropout Voltage - V
0.6
PC2933A
2
TJ = 0C
0.4
TJ = 25C 1 TJ = 125C 0
0.2 I O = 1.0 A 0 -25 TJ 0 +25 +50 +75 +100 +125 +150
0
5
10
15
20
Operating Junction Temperature - C
VDIF - Dropout Voltage - V
IO peak vs.V DIF 3
PC2905A
80 70
R R vs. f
IO peak - Peak Output Current - A
R - Ripple Rejection - dB
PC2933A 60 50 PC2905A 40 30 20
TJ = 25C IO = 1 A 4.3 V VIN 16 V ( PC2933A) IN 6 V V 16 V ( PC2905A)
2 TJ = 0C
1
TJ = 25C TJ = 125C
R
0 0 10
VDIF - Dropout Voltage - V
0
15 20
10
100
1k f - Frequency - Hz
10 k
100 k
80
R R vs. IO
1.0
VDIF vs. IO
TJ = 25C
R - Ripple Rejection - dB
PC2933A 60 PC2905A 50
TJ = 25C f = 120 Hz 4.3 V VIN 16 V ( PC2933A) 6 V VIN 16 V ( PC2905A)
VDIF - Dropout Voltage - V
70
0.8
0.6 PC2905A 0.4 PC2933A 0.2
40
R
30 0 0.2 0.4 0.6 0.8 1.0 I O - Output Current - A
0 0 0.2 0.4 0.6 0.8 1.0 IO - Output Current - A
8
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
VO vs.IO PC2933A 6
TJ = 25C
6 5
VO vs.I O
PC2905A
TJ = 25C
5
VO - Output Voltage - V
V O - Output Voltage - V
4 3 VIN = 4.3 V VIN = 5 V 2 1 VIN = 16 V
4 3 2 1
VIN = 6 V VIN = 8 V
VIN = 16 V
0
0.4
0.8
1.2
1.6
2.0
2.4
0
0.4
0.8
1.2
1.6
2.0
2.4
IO - Output Current - A
IO - Output Current - A
Data Sheet G15374EJ2V0DS
9
PC2933A, 2905A
PACKAGE DRAWINGS
PC2933AHF, 2905AHF
3PIN PLASTIC SIP (MP-45G)
A E B P N
I L
D
1 2 3
M
K
Y
H Z C F
NOTE
J
V
U
G
M
ITEM A B C D E F G H I J K L M N P U V Y Z
MILLIMETERS 10.00.2 7.00.2 1.500.2 17.00.3 3.30.2 0.750.10 0.25 2.54 (T.P.) 5.00.3 2.460.2 5.00.2 8.50.2 8.50.2 4.50.2 2.80.2 2.40.5 0.650.10 8.90.7 1.300.2 P3HF-254B-4
Each lead centerline is located within 0.25 mm of its true position (T.P.) at maximum material condition.
10
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
PC2933AHB, 2905AHB
MP-3 (SC-64) (Unit: mm)
5.00.2 4
1.5 +0. 2 -0. 1
6.50.2
2.30.2
0.50.1
1.60.2
1.10.1
0.5 +0.2 -0.1 2.3 2.3
7.0 MIN.
13.7 MIN.
1
2
3
5.50.2
0.5 +0.2 -0.1
PC2933AT, 2905AT
MP-3Z (SC-63) (Unit: mm )
0.75
6.50.2 5.00.2
2.30.2
1.5 -0.1
+0.2
0.50.1
4
4.3 MAX.
10.0 MAX.
5.50.2
1
2
3
0.8
2.0 MIN.
1.10.2 2.3 2.3
0.9 MAX.
0.8 MAX.
0.8
0.5
1.0 MIN. 1.5 TYP.
Data Sheet G15374EJ2V0DS
11
PC2933A, 2905A
RECOMMENDED SOLDERING CONDITIONS
When soldering this product, it is highly recommended to observe the conditions as shown below. If other soldering processes are used, or if the soldering is perfomed under different condition, please make sure to consult with our sales offices. For more details, refer to our document "SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL" (C10535E). Surface Mount Device
PC2933AT, 2905AT: MP-3Z (SC-63)
Process Infrared Ray Reflow Conditions Peak temperature: 235C or below (Package surface temperature), Reflow time: 30 seconds or less (at 210C or higher), Maximum number of reflow processes: 2 times or less. Vapor Phase Soldering Peak temperature: 215C or below (Package surface temperature), Reflow time: 40 seconds or less (at 200C or higher), Maximum number of reflow processes: 2 times or less. Wave Soldering Solder temperature: 260C or below, Flow time: 10 seconds or less, Maximum number of flow processes: 1 time, Pre-heating temperature: 120C or below (Package surface temperature). Partial Heating Method Pin temperature: 300C or below, Heat time: 3 seconds or less (Per each side of the device). - WS60-00-1 VP15-00-2 Symbol IR35-00-2
Caution Apply only one kind of soldering condition to a device, except for "partial heating method", or the device will be damaged by heat stress. Through-hole devices
PC2933AHF, 2905AHF: MP-45G PC2933AHB, 2905AHB: MP-3
Process Wave soldering (only to leads) Partial heating method Solder temperature: 260C or below, Flow time: 10 seconds or less. Pin temperature: 300C or below, Heat time: 3 seconds or less (Per each pin).
Conditions
Caution For through-hole device, the wave soldering process must be applied only to leads, and make sure that the package body does not get jet soldered.
12
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
NOTES ON USE
When the PC2933A, 2905A are used with an input voltage that is lower than the value indicated in the recommended operating conditions, a large quiescent current flows through the device due to saturation of the transistor of the output stage. (Refer to the IBIAS (IBIAS(S)) vs. VIN curves in TYPICAL CHARACTERISTICS). These products have saturation protector, but a current of up to 80 mA MAX. may flow through the device. Thus the power supply on the input side must have sufficient capacity to allow this quiescent current to pass when the device starts up.
REFERENCE DOCUMENTS
Document Name QUALITY GRADES ON NEC SEMICONDUCTOR DEVICES SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL VOLTAGE REGULATOR OF SMD SEMICONDUCTOR SELECTION GUIDE - PRODUCTS AND PACKAGES Document No. C11531E C10535E G11872E X13769E
Data Sheet G15374EJ2V0DS
13
PC2933A, 2905A
[MEMO]
14
Data Sheet G15374EJ2V0DS
PC2933A, 2905A
[MEMO]
Data Sheet G15374EJ2V0DS
15
PC2933A, 2905A
* The information in this document is current as of September, 2001. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all products and/or types are available in every country. Please check with an NEC sales representative for availability and additional information. * No part of this document may be copied or reproduced in any form or by any means without prior written consent of NEC. NEC assumes no responsibility for any errors that may appear in this document. * NEC does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC semiconductor products listed in this document or any other liability arising from the use of such products. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC or others. * Descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software and information in the design of customer's equipment shall be done under the full responsibility of customer. NEC assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC endeavours to enhance the quality, reliability and safety of NEC semiconductor products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize risks of damage to property or injury (including death) to persons arising from defects in NEC semiconductor products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment, and anti-failure features. * NEC semiconductor products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to semiconductor products developed based on a customer-designated "quality assurance program" for a specific application. The recommended applications of a semiconductor product depend on its quality grade, as indicated below. Customers must check the quality grade of each semiconductor product before using it in a particular application. "Standard": Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots "Special": Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) "Specific": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. The quality grade of NEC semiconductor products is "Standard" unless otherwise expressly specified in NEC's data sheets or data books, etc. If customers wish to use NEC semiconductor products in applications not intended by NEC, they must contact an NEC sales representative in advance to determine NEC's willingness to support a given application. (Note) (1) "NEC" as used in this statement means NEC Corporation and also includes its majority-owned subsidiaries. (2) "NEC semiconductor products" means any semiconductor product developed or manufactured by or for NEC (as defined above).
M8E 00. 4

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