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| 型号： | LM2588T-ADJ/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 7/38页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ TO220-7 |
| 产品培训模块： | SIMPLE SWITCHER® Regulators |
| 标准包装： | 45 |
| 系列： | SIMPLE SWITCHER® |
| 类型： | 升压（升压），回扫，正向转换器 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 输入电压： | 4 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz ~ 200kHz |
| 电流 - 输出： | 5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-7 成形引线 |
| 包装： | 管件 |
| 供应商设备封装： | TO-220-7 |
| 产品目录页面： | 1304 (CN2011-ZH PDF) |
| 配用： | 551011367-051-ND - BOARD WEBENCH BUILD IT LM2586/88 |
| 其它名称： | *LM2588T-ADJ *LM2588T-ADJ/NOPB LM2588T-ADJ |
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SNVS117D – APRIL 1998 – REVISED APRIL 2013
LM2588-ADJ Electrical Characteristics
Specifications with standard type face are for T J = 25°C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, V IN = 5V.
Symbol
Parameters
Conditions
Typical
Min
Max
Units
SYSTEM PARAMETERS Test Circuit of Figure 19 (1)
V OUT
Δ V OUT /
Δ V IN
Δ V OUT /
Δ I LOAD
η
Output Voltage
Line Regulation
Load Regulation
Efficiency
V IN = 4V to 10V
I LOAD = 300 mA to 1.2A
V IN = 4V to 10V
I LOAD = 300 mA
V IN = 10V
I LOAD = 300 mA to 1.2A
V IN = 10V, I LOAD = 1A
12.0
20
20
90
11.52/ 11.40
12.48/ 12.60
100/ 200
100/ 200
V
mV
mV
%
UNIQUE DEVICE PARAMETERS
(2)
V REF
Output Reference
Voltage
Measured at Feedback Pin
V COMP = 1.0V
1.230
1.208/ 1.205
1.252/ 1.255
V
Δ V REF
Reference Voltage Line V IN = 4V to 40V
Regulation
1.5
mV
G M
Error Amp
Transconductance
I COMP = ? 30 μ A to +30 μ A
V COMP = 1.0V
3.200
1.800
6.000
mmho
A VOL
I B
Error Amp Voltage
Gain
Error Amp Input Bias
Current
V COMP = 0.5V to 1.6V
R COMP = 1.0 M Ω (3)
V COMP = 1.0V
670
125
400/ 200
425/ 600
V/V
nA
(1)
(2)
(3)
External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the
LM2588 is used as shown in Figure 18 and Figure 19 , system performance will be as specified by the system parameters.
All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using
standard Statistical Quality Control (SQC) methods.
A 1.0 M Ω resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring A VOL .
All Output Voltage Versions Electrical Characteristics (1)
Specifications with standard type face are for T J = 25°C, and those in bold type face apply over full Operating Temperature
Range. Unless otherwise specified, V IN = 5V.
I S
Symbol
Parameters
Input Supply Current
Switch Off (2)
Conditions
Typical
11
Min
Max
15.5/ 16.5
Units
mA
I SWITCH = 3.0A
85
140/ 165
mA
I S/D
Shutdown Input
Supply Current
V SH = 3V
16
100/ 300
μ A
V UV
Input Supply
Undervoltage Lockout
R LOAD = 100 Ω
3.30
3.05
3.75
V
f O
Oscillator Frequency
Measured at Switch Pin
R LOAD = 100 Ω , V COMP = 1.0V
100
85/ 75
115/ 125
kHz
Freq. Adj. Pin Open (Pin 1)
R SET = 22 k Ω
200
kHz
f SC
Short-Circuit Frequency Measured at Switch Pin
R LOAD = 100 Ω
25
kHz
V FEEDBACK = 1.15V
V EAO
Error Amplifier Output
Swing
Upper Limit (3)
Lower Limit (2)
2.8
0.25
2.6/ 2.4
0.40/ 0.55
V
V
(1)
(2)
(3)
All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using
standard Statistical Quality Control (SQC) methods.
To measure this parameter, the feedback voltage is set to a high value, depending on the output version of the device, to force the error
amplifier output low and the switch off.
To measure this parameter, the feedback voltage is set to a low value, depending on the output version of the device, to force the error
amplifier output high and the switch on.
Copyright ? 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM2588
7
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