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| 型号： | MAX1545ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/43页 |
| 文件大小： | 0K |
| 描述： | IC QUICK-PWM DUAL-PHASE 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，Intel Pentium? IV |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 1.85 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V CC = V DD = V SHDN = V TON = V SKIP = V S0 = V S1 = V CODE = 5V, V FB = V CMP = V CMN = V CSP = V CSN
= 1.3V, OFS = SUS = GNDS = D0–D4 = GND; T A = 0°C to +85°C , unless otherwise specified. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TON = GND
(550kHz)
155
180
205
On-Time (Note 3)
t ON
V+ = 12V,
V FB = V CCI = 1.2V
TON = REF
(300kHz)
TON = open
(200kHz)
320
475
355
525
390
575
ns
TON = V CC
(100kHz)
920
1000
1140
Minimum Off-Time (Note 3)
t OFF(MIN)
TON = GND
TON = V CC , open, or REF
300
400
375
480
ns
BIAS AND REFERENCE
Measured at V CC , FB forced above the
Quiescent Supply Current (V CC )
I CC
regulation point, OAIN- = FB,
1.70
3.20
mA
V OAIN+ = 1.3V
Quiescent Supply Current (V DD )
Quiescent Battery Supply Current
(V+)
Shutdown Supply Current (V CC )
Shutdown Supply Current (V DD )
Shutdown Battery Supply Current
(V+)
I DD
I V+
Measured at V DD , FB forced above the
regulation point
Measured at V+
Measured at V CC , SHDN = GND
Measured at V DD , SHDN = GND
Measured at V+, SHDN = GND,
V CC = V DD = 0 or 5V
<1
25
4
<1
<1
5
40
10
5
5
μA
μA
μA
μA
μA
Reference Voltage
Reference Load Regulation
V REF
Δ V REF
V CC = 4.5V to 5.5V, I REF = 0
I REF = -10μA to +100μA
1.990
-10
2.000
2.010
+10
V
mV
FAULT PROTECTION
Output Overvoltage Protection
Threshold (MAX1545 Only)
Output Overvoltage Propagation
Delay (MAX1545 Only)
Output Undervoltage Protection
Threshold
Output Undervoltage Propagation
Delay
V OVP
t OVP
V UVP
t UVP
SKIP = V CC , measured at FB with respect
to unloaded output voltage
SKIP = REF or GND
FB forced 2% above trip threshold
Measured at FB with respect to unloaded
output voltage
FB forced 2% below trip threshold
Lower threshold
Measured at FB
(undervoltage)
13
67
-12
16
2.00
10
70
10
-10
19
73
-8
%
V
μs
%
μs
VROK Threshold
with respect to
unloaded output
Upper threshold
%
voltage
(overvoltage)
SKIP = V CC
+8
+10
+12
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